From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74E97ECAAD3 for ; Fri, 9 Sep 2022 15:31:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231252AbiIIPbZ (ORCPT ); Fri, 9 Sep 2022 11:31:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37324 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231149AbiIIPbA (ORCPT ); Fri, 9 Sep 2022 11:31:00 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 7421361DB0; Fri, 9 Sep 2022 08:30:19 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 13C311684; Fri, 9 Sep 2022 08:28:34 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4EA033F73D; Fri, 9 Sep 2022 08:28:26 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 01/13] perf test: Add CoreSight shell lib shared code for future tests Date: Fri, 9 Sep 2022 16:27:51 +0100 Message-Id: <20220909152803.2317006-2-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler This adds a library of shell "code" to be shared and used by future tests that target quality testing for Arm CoreSight support in perf and the Linux kernel. Signed-off-by: Carsten Haitzler --- tools/perf/tests/shell/lib/coresight.sh | 132 ++++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 tools/perf/tests/shell/lib/coresight.sh diff --git a/tools/perf/tests/shell/lib/coresight.sh b/tools/perf/tests/she= ll/lib/coresight.sh new file mode 100644 index 000000000000..45a1477256b6 --- /dev/null +++ b/tools/perf/tests/shell/lib/coresight.sh @@ -0,0 +1,132 @@ +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +# This is sourced from a driver script so no need for #!/bin... etc. at the +# top - the assumption below is that it runs as part of sourcing after the +# test sets up some basic env vars to say what it is. + +# This currently works with ETMv4 / ETF not any other packet types at thi +# point. This will need changes if that changes. + +# perf record options for the perf tests to use +PERFRECMEM=3D"-m ,16M" +PERFRECOPT=3D"$PERFRECMEM -e cs_etm//u" + +TOOLS=3D$(dirname $0) +DIR=3D"$TOOLS/$TEST" +BIN=3D"$DIR/$TEST" +# If the test tool/binary does not exist and is executable then skip the t= est +if ! test -x "$BIN"; then exit 2; fi +DATD=3D"." +# If the data dir env is set then make the data dir use that instead of ./ +if test -n "$PERF_TEST_CORESIGHT_DATADIR"; then + DATD=3D"$PERF_TEST_CORESIGHT_DATADIR"; +fi +# If the stat dir env is set then make the data dir use that instead of ./ +STATD=3D"." +if test -n "$PERF_TEST_CORESIGHT_STATDIR"; then + STATD=3D"$PERF_TEST_CORESIGHT_STATDIR"; +fi + +# Called if the test fails - error code 1 +err() { + echo "$1" + exit 1 +} + +# Check that some statistics from our perf +check_val_min() { + STATF=3D"$4" + if test "$2" -lt "$3"; then + echo ", FAILED" >> "$STATF" + err "Sanity check number of $1 is too low ($2 < $3)" + fi +} + +perf_dump_aux_verify() { + # Some basic checking that the AUX chunk contains some sensible data + # to see that we are recording something and at least a minimum + # amount of it. We should almost always see Fn packets in just about + # anything but certainly we will see some trace info and async + # packets + DUMP=3D"$DATD/perf-tmp-aux-dump.txt" + perf report --stdio --dump -i "$1" | \ + grep -o -e I_ATOM_F -e I_ASYNC -e I_TRACE_INFO > "$DUMP" + # Simply count how many of these packets we find to see that we are + # producing a reasonable amount of data - exact checks are not sane + # as this is a lossy process where we may lose some blocks and the + # compiler may produce different code depending on the compiler and + # optimization options, so this is rough just to see if we're + # either missing almost all the data or all of it + ATOM_FX_NUM=3D`grep I_ATOM_F "$DUMP" | wc -l` + ASYNC_NUM=3D`grep I_ASYNC "$DUMP" | wc -l` + TRACE_INFO_NUM=3D`grep I_TRACE_INFO "$DUMP" | wc -l` + rm -f "$DUMP" + + # Arguments provide minimums for a pass + CHECK_FX_MIN=3D"$2" + CHECK_ASYNC_MIN=3D"$3" + CHECK_TRACE_INFO_MIN=3D"$4" + + # Write out statistics, so over time you can track results to see if + # there is a pattern - for example we have less "noisy" results that + # produce more consistent amounts of data each run, to see if over + # time any techinques to minimize data loss are having an effect or + # not + STATF=3D"$STATD/stats-$TEST-$DATV.csv" + if ! test -f "$STATF"; then + echo "ATOM Fx Count, Minimum, ASYNC Count, Minimum, TRACE INFO Count, Mi= nimum" > "$STATF" + fi + echo -n "$ATOM_FX_NUM, $CHECK_FX_MIN, $ASYNC_NUM, $CHECK_ASYNC_MIN, $TRAC= E_INFO_NUM, $CHECK_TRACE_INFO_MIN" >> "$STATF" + + # Actually check to see if we passed or failed. + check_val_min "ATOM_FX" "$ATOM_FX_NUM" "$CHECK_FX_MIN" "$STATF" + check_val_min "ASYNC" "$ASYNC_NUM" "$CHECK_ASYNC_MIN" "$STATF" + check_val_min "TRACE_INFO" "$TRACE_INFO_NUM" "$CHECK_TRACE_INFO_MIN" "$ST= ATF" + echo ", Ok" >> "$STATF" +} + +perf_dump_aux_tid_verify() { + # Specifically crafted test will produce a list of Tread ID's to + # stdout that need to be checked to see that they have had trace + # info collected in AUX blocks in the perf data. This will go + # through all the TID's that are listed as CID=3D0xabcdef and see + # that all the Thread IDs the test tool reports are in the perf + # data AUX chunks + + # The TID test tools will print a TID per stdout line that are being + # tested + TIDS=3D`cat "$2"` + # Scan the perf report to find the TIDs that are actually CID in hex + # and build a list of the ones found + FOUND_TIDS=3D`perf report --stdio --dump -i "$1" | \ + grep -o "CID=3D0x[0-9a-z]\+" | sed 's/CID=3D//g' | \ + uniq | sort | uniq` + # No CID=3Dxxx found - maybe your kernel is reporting these as + # VMID=3Dxxx so look there + if test -z "$FOUND_TIDS"; then + FOUND_TIDS=3D`perf report --stdio --dump -i "$1" | \ + grep -o "VMID=3D0x[0-9a-z]\+" | sed 's/VMID=3D//g' | \ + uniq | sort | uniq` + fi + + # Iterate over the list of TIDs that the test says it has and find + # them in the TIDs found in the perf report + MISSING=3D"" + for TID2 in $TIDS; do + FOUND=3D"" + for TIDHEX in $FOUND_TIDS; do + TID=3D`printf "%i" $TIDHEX` + if test "$TID" -eq "$TID2"; then + FOUND=3D"y" + break + fi + done + if test -z "$FOUND"; then + MISSING=3D"$MISSING $TID" + fi + done + if test -n "$MISSING"; then + err "Thread IDs $MISSING not found in perf AUX data" + fi +} --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77492ECAAD3 for ; Fri, 9 Sep 2022 15:31:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230251AbiIIPbJ (ORCPT ); Fri, 9 Sep 2022 11:31:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230342AbiIIPav (ORCPT ); Fri, 9 Sep 2022 11:30:51 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 8EBDF58DF8; Fri, 9 Sep 2022 08:30:09 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C26601688; Fri, 9 Sep 2022 08:28:35 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0E8E63F73D; Fri, 9 Sep 2022 08:28:27 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 02/13] perf test: Add build infra for perf test tools for CoreSight tests Date: Fri, 9 Sep 2022 16:27:52 +0100 Message-Id: <20220909152803.2317006-3-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler This adds the initial build infrastructure (makefiles maintainers information) for adding follow-on tests for CoreSight. Signed-off-by: Carsten Haitzler --- MAINTAINERS | 1 + tools/perf/Makefile.config | 2 ++ tools/perf/Makefile.perf | 15 +++++++++-- tools/perf/tests/shell/coresight/Makefile | 25 +++++++++++++++++++ .../tests/shell/coresight/Makefile.miniconfig | 14 +++++++++++ 5 files changed, 55 insertions(+), 2 deletions(-) create mode 100644 tools/perf/tests/shell/coresight/Makefile create mode 100644 tools/perf/tests/shell/coresight/Makefile.miniconfig diff --git a/MAINTAINERS b/MAINTAINERS index 9d7f64dc0efe..c8ae5a6638b6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2029,6 +2029,7 @@ F: drivers/hwtracing/coresight/* F: include/dt-bindings/arm/coresight-cti-dt.h F: include/linux/coresight* F: samples/coresight/* +F: tools/perf/tests/shell/coresight/* F: tools/perf/arch/arm/util/auxtrace.c F: tools/perf/arch/arm/util/cs-etm.c F: tools/perf/arch/arm/util/cs-etm.h diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 0661a1cf9855..e3e28b3481f9 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -1291,6 +1291,8 @@ perf_examples_instdir_SQ =3D $(subst ','\'',$(perf_ex= amples_instdir)) STRACE_GROUPS_INSTDIR_SQ =3D $(subst ','\'',$(STRACE_GROUPS_INSTDIR)) tip_instdir_SQ =3D $(subst ','\'',$(tip_instdir)) =20 +export perfexec_instdir_SQ + # If we install to $(HOME) we keep the traceevent default: # $(HOME)/.traceevent/plugins # Otherwise we install plugins into the global $(libdir). diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index e5921b347153..cef2a06c8f54 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -629,7 +629,15 @@ sync_file_range_tbls :=3D $(srctree)/tools/perf/trace/= beauty/sync_file_range.sh $(sync_file_range_arrays): $(linux_uapi_dir)/fs.h $(sync_file_range_tbls) $(Q)$(SHELL) '$(sync_file_range_tbls)' $(linux_uapi_dir) > $@ =20 -all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PRO= GRAMS) +TESTS_CORESIGHT_DIR :=3D $(srctree)/tools/perf/tests/shell/coresight + +tests-coresight-targets: FORCE + $(Q)$(MAKE) -C $(TESTS_CORESIGHT_DIR) + +tests-coresight-targets-clean: + $(Q)$(MAKE) -C $(TESTS_CORESIGHT_DIR) clean + +all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PRO= GRAMS) tests-coresight-targets =20 # Create python binding output directory if not already present _dummy :=3D $(shell [ -d '$(OUTPUT)python' ] || mkdir -p '$(OUTPUT)python') @@ -1007,6 +1015,9 @@ install-tests: all install-gtk $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/li= b'; \ $(INSTALL) tests/shell/lib/*.sh '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tes= ts/shell/lib'; \ $(INSTALL) tests/shell/lib/*.py '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tes= ts/shell/lib' + $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/co= resight'; \ + $(INSTALL) tests/shell/coresight/*.sh '$(DESTDIR_SQ)$(perfexec_instdir_S= Q)/tests/shell/coresight' + $(Q)$(MAKE) -C tests/shell/coresight install-tests =20 install-bin: install-tools install-tests install-traceevent-plugins =20 @@ -1077,7 +1088,7 @@ endif # BUILD_BPF_SKEL bpf-skel-clean: $(call QUIET_CLEAN, bpf-skel) $(RM) -r $(SKEL_TMP_OUT) $(SKELETONS) =20 -clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD= )-clean $(LIBPERF)-clean fixdep-clean python-clean bpf-skel-clean +clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD= )-clean $(LIBPERF)-clean fixdep-clean python-clean bpf-skel-clean tests-cor= esight-targets-clean $(call QUIET_CLEAN, core-objs) $(RM) $(LIBPERF_A) $(OUTPUT)perf-archive = $(OUTPUT)perf-iostat $(LANG_BINDINGS) $(Q)find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete= -o -name '\.*.d' -delete $(Q)$(RM) $(OUTPUT).config-detected diff --git a/tools/perf/tests/shell/coresight/Makefile b/tools/perf/tests/s= hell/coresight/Makefile new file mode 100644 index 000000000000..3fee05cfcb0e --- /dev/null +++ b/tools/perf/tests/shell/coresight/Makefile @@ -0,0 +1,25 @@ +# SPDX-License-Identifier: GPL-2.0-only +# Carsten Haitzler , 2021 +include ../../../../../tools/scripts/Makefile.include +include ../../../../../tools/scripts/Makefile.arch +include ../../../../../tools/scripts/utilities.mak + +SUBDIRS =3D + +all: $(SUBDIRS) +$(SUBDIRS): + $(Q)$(MAKE) -C $@ + +INSTALLDIRS =3D $(SUBDIRS:%=3Dinstall-%) + +install-tests: $(INSTALLDIRS) +$(INSTALLDIRS): + $(Q)$(MAKE) -C $(@:install-%=3D%) install-tests + +CLEANDIRS =3D $(SUBDIRS:%=3Dclean-%) + +clean: $(CLEANDIRS) +$(CLEANDIRS): + $(Q)$(MAKE) -C $(@:clean-%=3D%) clean >/dev/null + +.PHONY: all clean $(SUBDIRS) $(CLEANDIRS) $(INSTALLDIRS) diff --git a/tools/perf/tests/shell/coresight/Makefile.miniconfig b/tools/p= erf/tests/shell/coresight/Makefile.miniconfig new file mode 100644 index 000000000000..5f72a9cb43f3 --- /dev/null +++ b/tools/perf/tests/shell/coresight/Makefile.miniconfig @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: GPL-2.0-only +# Carsten Haitzler , 2021 + +ifndef DESTDIR +prefix ?=3D $(HOME) +endif + +DESTDIR_SQ =3D $(subst ','\'',$(DESTDIR)) +INSTALL =3D install +INSTDIR_SUB =3D tests/shell/coresight + +include ../../../../../scripts/Makefile.include +include ../../../../../scripts/Makefile.arch +include ../../../../../scripts/utilities.mak --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C50F1ECAAA1 for ; Fri, 9 Sep 2022 15:31:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231173AbiIIPbN (ORCPT ); Fri, 9 Sep 2022 11:31:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37244 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229697AbiIIPa5 (ORCPT ); Fri, 9 Sep 2022 11:30:57 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 518795E556; Fri, 9 Sep 2022 08:30:15 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 80D07168F; Fri, 9 Sep 2022 08:28:37 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id BEB903F73D; Fri, 9 Sep 2022 08:28:29 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 03/13] perf test: Add asm pureloop test tool Date: Fri, 9 Sep 2022 16:27:53 +0100 Message-Id: <20220909152803.2317006-4-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Add test tool to be driven by further test scripts. This tool is pure arm64 ASM with no libc usage to ensure it is the same exact binary/code every time so it can also be re-used for many uses. It just loops for a given fixed number of loops. Signed-off-by: Carsten Haitzler --- tools/perf/tests/shell/coresight/Makefile | 3 +- .../shell/coresight/asm_pure_loop/.gitignore | 1 + .../shell/coresight/asm_pure_loop/Makefile | 34 +++++++++++++++++++ .../coresight/asm_pure_loop/asm_pure_loop.S | 28 +++++++++++++++ 4 files changed, 65 insertions(+), 1 deletion(-) create mode 100644 tools/perf/tests/shell/coresight/asm_pure_loop/.gitigno= re create mode 100644 tools/perf/tests/shell/coresight/asm_pure_loop/Makefile create mode 100644 tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure= _loop.S diff --git a/tools/perf/tests/shell/coresight/Makefile b/tools/perf/tests/s= hell/coresight/Makefile index 3fee05cfcb0e..0c192ee253e3 100644 --- a/tools/perf/tests/shell/coresight/Makefile +++ b/tools/perf/tests/shell/coresight/Makefile @@ -4,7 +4,8 @@ include ../../../../../tools/scripts/Makefile.include include ../../../../../tools/scripts/Makefile.arch include ../../../../../tools/scripts/utilities.mak =20 -SUBDIRS =3D +SUBDIRS =3D \ + asm_pure_loop =20 all: $(SUBDIRS) $(SUBDIRS): diff --git a/tools/perf/tests/shell/coresight/asm_pure_loop/.gitignore b/to= ols/perf/tests/shell/coresight/asm_pure_loop/.gitignore new file mode 100644 index 000000000000..468673ac32e8 --- /dev/null +++ b/tools/perf/tests/shell/coresight/asm_pure_loop/.gitignore @@ -0,0 +1 @@ +asm_pure_loop diff --git a/tools/perf/tests/shell/coresight/asm_pure_loop/Makefile b/tool= s/perf/tests/shell/coresight/asm_pure_loop/Makefile new file mode 100644 index 000000000000..206849e92bc9 --- /dev/null +++ b/tools/perf/tests/shell/coresight/asm_pure_loop/Makefile @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +include ../Makefile.miniconfig + +# Binary to produce +BIN=3Dasm_pure_loop +# Any linking/libraries needed for the binary - empty if none needed +LIB=3D + +all: $(BIN) + +$(BIN): $(BIN).S +ifdef CORESIGHT +ifeq ($(ARCH),arm64) +# Build line - this is raw asm with no libc to have an always exact binary + $(Q)$(CC) $(BIN).S -nostdlib -static -o $(BIN) $(LIB) +endif +endif + +install-tests: all +ifdef CORESIGHT +ifeq ($(ARCH),arm64) +# Install the test tool in the right place + $(call QUIET_INSTALL, tests) \ + $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)= /$(BIN)'; \ + $(INSTALL) $(BIN) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)/$(= BIN)/$(BIN)' +endif +endif + +clean: + $(Q)$(RM) -f $(BIN) + +.PHONY: all clean install-tests diff --git a/tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure_loop.S= b/tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure_loop.S new file mode 100644 index 000000000000..75cf084a927d --- /dev/null +++ b/tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure_loop.S @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Tamas Zsoldos , 2021 */ + +.globl _start +_start: + mov x0, 0x0000ffff + mov x1, xzr +loop: + nop + nop + cbnz x1, noskip + nop + nop + adrp x2, skip + add x2, x2, :lo12:skip + br x2 + nop + nop +noskip: + nop + nop +skip: + sub x0, x0, 1 + cbnz x0, loop + + mov x0, #0 + mov x8, #93 // __NR_exit syscall + svc #0 --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B0E4ECAAA1 for ; Fri, 9 Sep 2022 15:31:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231196AbiIIPbS (ORCPT ); Fri, 9 Sep 2022 11:31:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231146AbiIIPbA (ORCPT ); Fri, 9 Sep 2022 11:31:00 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 283EB1DA74; Fri, 9 Sep 2022 08:30:22 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 349CD1691; Fri, 9 Sep 2022 08:28:39 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6E56C3F73D; Fri, 9 Sep 2022 08:28:31 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 04/13] perf test: Add asm pureloop test shell script Date: Fri, 9 Sep 2022 16:27:54 +0100 Message-Id: <20220909152803.2317006-5-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Add a script to drive the asm pureloop test for arm64/CoreSight that gathers data so it passes a minimum bar for amount and quality of content that we extract from the kernel's perf support. Signed-off-by: Carsten Haitzler --- .../tests/shell/coresight/asm_pure_loop.sh | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100755 tools/perf/tests/shell/coresight/asm_pure_loop.sh diff --git a/tools/perf/tests/shell/coresight/asm_pure_loop.sh b/tools/perf= /tests/shell/coresight/asm_pure_loop.sh new file mode 100755 index 000000000000..569e9d46162b --- /dev/null +++ b/tools/perf/tests/shell/coresight/asm_pure_loop.sh @@ -0,0 +1,18 @@ +#!/bin/sh -e +# CoreSight / ASM Pure Loop + +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +TEST=3D"asm_pure_loop" +. $(dirname $0)/../lib/coresight.sh +ARGS=3D"" +DATV=3D"out" +DATA=3D"$DATD/perf-$TEST-$DATV.data" + +perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS + +perf_dump_aux_verify "$DATA" 10 10 10 + +err=3D$? +exit $err --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64128ECAAA1 for ; Fri, 9 Sep 2022 15:32:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232089AbiIIPct (ORCPT ); Fri, 9 Sep 2022 11:32:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232063AbiIIPc2 (ORCPT ); Fri, 9 Sep 2022 11:32:28 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 83B1814A526; Fri, 9 Sep 2022 08:32:16 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E166D1692; Fri, 9 Sep 2022 08:28:40 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2C9123F73D; Fri, 9 Sep 2022 08:28:33 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 05/13] perf test: Add git ignore for perf data generated by the CoreSight tests Date: Fri, 9 Sep 2022 16:27:55 +0100 Message-Id: <20220909152803.2317006-6-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Ignore perf output data files generated by perf tests for cleaner git status. Signed-off-by: Carsten Haitzler --- tools/perf/.gitignore | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore index 4b9c71faa01a..faa23b5d32f5 100644 --- a/tools/perf/.gitignore +++ b/tools/perf/.gitignore @@ -15,8 +15,8 @@ perf*.1 perf*.xml perf*.html common-cmds.h -perf.data -perf.data.old +perf*.data +perf*.data.old output.svg perf-archive perf-iostat --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E41FECAAA1 for ; Fri, 9 Sep 2022 15:32:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231903AbiIIPcw (ORCPT ); Fri, 9 Sep 2022 11:32:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232062AbiIIPc2 (ORCPT ); Fri, 9 Sep 2022 11:32:28 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 42C58148588; Fri, 9 Sep 2022 08:32:16 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 919AE169C; Fri, 9 Sep 2022 08:28:42 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id DD0893F73D; Fri, 9 Sep 2022 08:28:34 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 06/13] perf test: Add memcpy thread test tool Date: Fri, 9 Sep 2022 16:27:56 +0100 Message-Id: <20220909152803.2317006-7-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Add test tool to be driven by further test scripts. This is a simple C based memcpy with threads test to drive from scripts. Signed-off-by: Carsten Haitzler --- tools/perf/tests/shell/coresight/Makefile | 3 +- .../shell/coresight/memcpy_thread/.gitignore | 1 + .../shell/coresight/memcpy_thread/Makefile | 33 ++++++++ .../coresight/memcpy_thread/memcpy_thread.c | 79 +++++++++++++++++++ 4 files changed, 115 insertions(+), 1 deletion(-) create mode 100644 tools/perf/tests/shell/coresight/memcpy_thread/.gitigno= re create mode 100644 tools/perf/tests/shell/coresight/memcpy_thread/Makefile create mode 100644 tools/perf/tests/shell/coresight/memcpy_thread/memcpy_t= hread.c diff --git a/tools/perf/tests/shell/coresight/Makefile b/tools/perf/tests/s= hell/coresight/Makefile index 0c192ee253e3..9a8526a74267 100644 --- a/tools/perf/tests/shell/coresight/Makefile +++ b/tools/perf/tests/shell/coresight/Makefile @@ -5,7 +5,8 @@ include ../../../../../tools/scripts/Makefile.arch include ../../../../../tools/scripts/utilities.mak =20 SUBDIRS =3D \ - asm_pure_loop + asm_pure_loop \ + memcpy_thread =20 all: $(SUBDIRS) $(SUBDIRS): diff --git a/tools/perf/tests/shell/coresight/memcpy_thread/.gitignore b/to= ols/perf/tests/shell/coresight/memcpy_thread/.gitignore new file mode 100644 index 000000000000..f8217e56091e --- /dev/null +++ b/tools/perf/tests/shell/coresight/memcpy_thread/.gitignore @@ -0,0 +1 @@ +memcpy_thread diff --git a/tools/perf/tests/shell/coresight/memcpy_thread/Makefile b/tool= s/perf/tests/shell/coresight/memcpy_thread/Makefile new file mode 100644 index 000000000000..2db637eb2c26 --- /dev/null +++ b/tools/perf/tests/shell/coresight/memcpy_thread/Makefile @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 +include ../Makefile.miniconfig + +# Binary to produce +BIN=3Dmemcpy_thread +# Any linking/libraries needed for the binary - empty if none needed +LIB=3D-pthread + +all: $(BIN) + +$(BIN): $(BIN).c +ifdef CORESIGHT +ifeq ($(ARCH),arm64) +# Build line + $(Q)$(CC) $(BIN).c -o $(BIN) $(LIB) +endif +endif + +install-tests: all +ifdef CORESIGHT +ifeq ($(ARCH),arm64) +# Install the test tool in the right place + $(call QUIET_INSTALL, tests) \ + $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)= /$(BIN)'; \ + $(INSTALL) $(BIN) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)/$(= BIN)/$(BIN)' +endif +endif + +clean: + $(Q)$(RM) -f $(BIN) + +.PHONY: all clean install-tests diff --git a/tools/perf/tests/shell/coresight/memcpy_thread/memcpy_thread.c= b/tools/perf/tests/shell/coresight/memcpy_thread/memcpy_thread.c new file mode 100644 index 000000000000..a7e169d1bf64 --- /dev/null +++ b/tools/perf/tests/shell/coresight/memcpy_thread/memcpy_thread.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0 +// Carsten Haitzler , 2021 +#include +#include +#include +#include +#include + +struct args { + unsigned long loops; + unsigned long size; + pthread_t th; + void *ret; +}; + +static void *thrfn(void *arg) +{ + struct args *a =3D arg; + unsigned long i, len =3D a->loops; + unsigned char *src, *dst; + + src =3D malloc(a->size * 1024); + dst =3D malloc(a->size * 1024); + if ((!src) || (!dst)) { + printf("ERR: Can't allocate memory\n"); + exit(1); + } + for (i =3D 0; i < len; i++) + memcpy(dst, src, a->size * 1024); +} + +static pthread_t new_thr(void *(*fn) (void *arg), void *arg) +{ + pthread_t t; + pthread_attr_t attr; + + pthread_attr_init(&attr); + pthread_create(&t, &attr, fn, arg); + return t; +} + +int main(int argc, char **argv) +{ + unsigned long i, len, size, thr; + pthread_t threads[256]; + struct args args[256]; + long long v; + + if (argc < 4) { + printf("ERR: %s [copysize Kb] [numthreads] [numloops (hundreds)]\n", arg= v[0]); + exit(1); + } + + v =3D atoll(argv[1]); + if ((v < 1) || (v > (1024 * 1024))) { + printf("ERR: max memory 1GB (1048576 KB)\n"); + exit(1); + } + size =3D v; + thr =3D atol(argv[2]); + if ((thr < 1) || (thr > 256)) { + printf("ERR: threads 1-256\n"); + exit(1); + } + v =3D atoll(argv[3]); + if ((v < 1) || (v > 40000000000ll)) { + printf("ERR: loops 1-40000000000 (hundreds)\n"); + exit(1); + } + len =3D v * 100; + for (i =3D 0; i < thr; i++) { + args[i].loops =3D len; + args[i].size =3D size; + args[i].th =3D new_thr(thrfn, &(args[i])); + } + for (i =3D 0; i < thr; i++) + pthread_join(args[i].th, &(args[i].ret)); + return 0; +} --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6F9CC6FA89 for ; Fri, 9 Sep 2022 15:33:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232380AbiIIPdG (ORCPT ); Fri, 9 Sep 2022 11:33:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232003AbiIIPcg (ORCPT ); Fri, 9 Sep 2022 11:32:36 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 3280043E70; Fri, 9 Sep 2022 08:32:22 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3FC85169E; Fri, 9 Sep 2022 08:28:44 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 89A413F73D; Fri, 9 Sep 2022 08:28:36 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 07/13] perf test: Add memcpy thread test shell script Date: Fri, 9 Sep 2022 16:27:57 +0100 Message-Id: <20220909152803.2317006-8-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Add a script to drive the threaded memcpy test that gathers data so it passes a minimum bar for amount and quality of content that we extract from the kernel's perf support. Signed-off-by: Carsten Haitzler --- .../shell/coresight/memcpy_thread_16k_10.sh | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100755 tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh diff --git a/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh b/too= ls/perf/tests/shell/coresight/memcpy_thread_16k_10.sh new file mode 100755 index 000000000000..d21ba8545938 --- /dev/null +++ b/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh @@ -0,0 +1,18 @@ +#!/bin/sh -e +# CoreSight / Memcpy 16k 10 Threads + +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +TEST=3D"memcpy_thread" +. $(dirname $0)/../lib/coresight.sh +ARGS=3D"16 10 1" +DATV=3D"16k_10" +DATA=3D"$DATD/perf-$TEST-$DATV.data" + +perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS + +perf_dump_aux_verify "$DATA" 10 10 10 + +err=3D$? +exit $err --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25681ECAAD3 for ; Fri, 9 Sep 2022 15:33:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232265AbiIIPc7 (ORCPT ); Fri, 9 Sep 2022 11:32:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39758 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231994AbiIIPcg (ORCPT ); Fri, 9 Sep 2022 11:32:36 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 4D95B77E8B; Fri, 9 Sep 2022 08:32:24 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E08651A32; Fri, 9 Sep 2022 08:28:45 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 37C0B3F73D; Fri, 9 Sep 2022 08:28:38 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 08/13] perf test: Add thread loop test tool Date: Fri, 9 Sep 2022 16:27:58 +0100 Message-Id: <20220909152803.2317006-9-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Add test tool to be driven by further test scripts. This is a simple C based loop with threads test to drive from scripts that can output TIDs for tracking/checking. Signed-off-by: Carsten Haitzler --- tools/perf/tests/shell/coresight/Makefile | 3 +- .../shell/coresight/thread_loop/.gitignore | 1 + .../shell/coresight/thread_loop/Makefile | 33 +++++++ .../shell/coresight/thread_loop/thread_loop.c | 86 +++++++++++++++++++ 4 files changed, 122 insertions(+), 1 deletion(-) create mode 100644 tools/perf/tests/shell/coresight/thread_loop/.gitignore create mode 100644 tools/perf/tests/shell/coresight/thread_loop/Makefile create mode 100644 tools/perf/tests/shell/coresight/thread_loop/thread_loo= p.c diff --git a/tools/perf/tests/shell/coresight/Makefile b/tools/perf/tests/s= hell/coresight/Makefile index 9a8526a74267..9330e4f62656 100644 --- a/tools/perf/tests/shell/coresight/Makefile +++ b/tools/perf/tests/shell/coresight/Makefile @@ -6,7 +6,8 @@ include ../../../../../tools/scripts/utilities.mak =20 SUBDIRS =3D \ asm_pure_loop \ - memcpy_thread + memcpy_thread \ + thread_loop =20 all: $(SUBDIRS) $(SUBDIRS): diff --git a/tools/perf/tests/shell/coresight/thread_loop/.gitignore b/tool= s/perf/tests/shell/coresight/thread_loop/.gitignore new file mode 100644 index 000000000000..6d4c33eaa9e8 --- /dev/null +++ b/tools/perf/tests/shell/coresight/thread_loop/.gitignore @@ -0,0 +1 @@ +thread_loop diff --git a/tools/perf/tests/shell/coresight/thread_loop/Makefile b/tools/= perf/tests/shell/coresight/thread_loop/Makefile new file mode 100644 index 000000000000..ea846c038e7a --- /dev/null +++ b/tools/perf/tests/shell/coresight/thread_loop/Makefile @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 +include ../Makefile.miniconfig + +# Binary to produce +BIN=3Dthread_loop +# Any linking/libraries needed for the binary - empty if none needed +LIB=3D-pthread + +all: $(BIN) + +$(BIN): $(BIN).c +ifdef CORESIGHT +ifeq ($(ARCH),arm64) +# Build line + $(Q)$(CC) $(BIN).c -o $(BIN) $(LIB) +endif +endif + +install-tests: all +ifdef CORESIGHT +ifeq ($(ARCH),arm64) +# Install the test tool in the right place + $(call QUIET_INSTALL, tests) \ + $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)= /$(BIN)'; \ + $(INSTALL) $(BIN) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)/$(= BIN)/$(BIN)' +endif +endif + +clean: + $(Q)$(RM) -f $(BIN) + +.PHONY: all clean install-tests diff --git a/tools/perf/tests/shell/coresight/thread_loop/thread_loop.c b/t= ools/perf/tests/shell/coresight/thread_loop/thread_loop.c new file mode 100644 index 000000000000..c0158fac7d0b --- /dev/null +++ b/tools/perf/tests/shell/coresight/thread_loop/thread_loop.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0 +// Carsten Haitzler , 2021 + +// define this for gettid() +#define _GNU_SOURCE + +#include +#include +#include +#include +#include +#include +#ifndef SYS_gettid +// gettid is 178 on arm64 +# define SYS_gettid 178 +#endif +#define gettid() syscall(SYS_gettid) + +struct args { + unsigned int loops; + pthread_t th; + void *ret; +}; + +static void *thrfn(void *arg) +{ + struct args *a =3D arg; + int i =3D 0, len =3D a->loops; + + if (getenv("SHOW_TID")) { + unsigned long long tid =3D gettid(); + + printf("%llu\n", tid); + } + asm volatile( + "loop:\n" + "add %[i], %[i], #1\n" + "cmp %[i], %[len]\n" + "blt loop\n" + : /* out */ + : /* in */ [i] "r" (i), [len] "r" (len) + : /* clobber */ + ); + return (void *)(long)i; +} + +static pthread_t new_thr(void *(*fn) (void *arg), void *arg) +{ + pthread_t t; + pthread_attr_t attr; + + pthread_attr_init(&attr); + pthread_create(&t, &attr, fn, arg); + return t; +} + +int main(int argc, char **argv) +{ + unsigned int i, len, thr; + pthread_t threads[256]; + struct args args[256]; + + if (argc < 3) { + printf("ERR: %s [numthreads] [numloops (millions)]\n", argv[0]); + exit(1); + } + + thr =3D atoi(argv[1]); + if ((thr < 1) || (thr > 256)) { + printf("ERR: threads 1-256\n"); + exit(1); + } + len =3D atoi(argv[2]); + if ((len < 1) || (len > 4000)) { + printf("ERR: max loops 4000 (millions)\n"); + exit(1); + } + len *=3D 1000000; + for (i =3D 0; i < thr; i++) { + args[i].loops =3D len; + args[i].th =3D new_thr(thrfn, &(args[i])); + } + for (i =3D 0; i < thr; i++) + pthread_join(args[i].th, &(args[i].ret)); + return 0; +} --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 88F2EECAAA1 for ; Fri, 9 Sep 2022 15:33:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232391AbiIIPdK (ORCPT ); Fri, 9 Sep 2022 11:33:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40208 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232010AbiIIPcj (ORCPT ); Fri, 9 Sep 2022 11:32:39 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 39BCE3DF36; Fri, 9 Sep 2022 08:32:27 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 812C41756; Fri, 9 Sep 2022 08:28:47 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D59D13F73D; Fri, 9 Sep 2022 08:28:39 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 09/13] perf test: Add thread loop test shell scripts Date: Fri, 9 Sep 2022 16:27:59 +0100 Message-Id: <20220909152803.2317006-10-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Add a script to drive the thread loop test that gathers data so it passes a minimum bar (in this case do we get any perf context data for every thread). Signed-off-by: Carsten Haitzler --- .../coresight/thread_loop_check_tid_10.sh | 19 +++++++++++++++++++ .../coresight/thread_loop_check_tid_2.sh | 19 +++++++++++++++++++ 2 files changed, 38 insertions(+) create mode 100755 tools/perf/tests/shell/coresight/thread_loop_check_tid_= 10.sh create mode 100755 tools/perf/tests/shell/coresight/thread_loop_check_tid_= 2.sh diff --git a/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh b= /tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh new file mode 100755 index 000000000000..7c13636fc778 --- /dev/null +++ b/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh @@ -0,0 +1,19 @@ +#!/bin/sh -e +# CoreSight / Thread Loop 10 Threads - Check TID + +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +TEST=3D"thread_loop" +. $(dirname $0)/../lib/coresight.sh +ARGS=3D"10 1" +DATV=3D"check-tid-10th" +DATA=3D"$DATD/perf-$TEST-$DATV.data" +STDO=3D"$DATD/perf-$TEST-$DATV.stdout" + +SHOW_TID=3D1 perf record -s $PERFRECOPT -o "$DATA" "$BIN" $ARGS > $STDO + +perf_dump_aux_tid_verify "$DATA" "$STDO" + +err=3D$? +exit $err diff --git a/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh b/= tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh new file mode 100755 index 000000000000..a067145af43c --- /dev/null +++ b/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh @@ -0,0 +1,19 @@ +#!/bin/sh -e +# CoreSight / Thread Loop 2 Threads - Check TID + +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +TEST=3D"thread_loop" +. $(dirname $0)/../lib/coresight.sh +ARGS=3D"2 20" +DATV=3D"check-tid-2th" +DATA=3D"$DATD/perf-$TEST-$DATV.data" +STDO=3D"$DATD/perf-$TEST-$DATV.stdout" + +SHOW_TID=3D1 perf record -s $PERFRECOPT -o "$DATA" "$BIN" $ARGS > $STDO + +perf_dump_aux_tid_verify "$DATA" "$STDO" + +err=3D$? +exit $err --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ECB72ECAAA1 for ; Fri, 9 Sep 2022 15:33:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232420AbiIIPdP (ORCPT ); Fri, 9 Sep 2022 11:33:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40242 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232023AbiIIPck (ORCPT ); Fri, 9 Sep 2022 11:32:40 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 39FE23E75E; Fri, 9 Sep 2022 08:32:27 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 44D421A9A; Fri, 9 Sep 2022 08:28:49 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7A6B43F73D; Fri, 9 Sep 2022 08:28:41 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 10/13] perf test: Add unroll thread test tool Date: Fri, 9 Sep 2022 16:28:00 +0100 Message-Id: <20220909152803.2317006-11-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Add test tool to be driven by further test scripts. This is a simple C based test that is for arm64 with some inline ASM to manually unroll a lot of code to have a very long sequence of commands. Signed-off-by: Carsten Haitzler --- tools/perf/tests/shell/coresight/Makefile | 3 +- .../coresight/unroll_loop_thread/.gitignore | 1 + .../coresight/unroll_loop_thread/Makefile | 33 +++++++++ .../unroll_loop_thread/unroll_loop_thread.c | 74 +++++++++++++++++++ 4 files changed, 110 insertions(+), 1 deletion(-) create mode 100644 tools/perf/tests/shell/coresight/unroll_loop_thread/.gi= tignore create mode 100644 tools/perf/tests/shell/coresight/unroll_loop_thread/Mak= efile create mode 100644 tools/perf/tests/shell/coresight/unroll_loop_thread/unr= oll_loop_thread.c diff --git a/tools/perf/tests/shell/coresight/Makefile b/tools/perf/tests/s= hell/coresight/Makefile index 9330e4f62656..c8e3b2b6d5b5 100644 --- a/tools/perf/tests/shell/coresight/Makefile +++ b/tools/perf/tests/shell/coresight/Makefile @@ -7,7 +7,8 @@ include ../../../../../tools/scripts/utilities.mak SUBDIRS =3D \ asm_pure_loop \ memcpy_thread \ - thread_loop + thread_loop \ + unroll_loop_thread =20 all: $(SUBDIRS) $(SUBDIRS): diff --git a/tools/perf/tests/shell/coresight/unroll_loop_thread/.gitignore= b/tools/perf/tests/shell/coresight/unroll_loop_thread/.gitignore new file mode 100644 index 000000000000..2cb4e996dbf3 --- /dev/null +++ b/tools/perf/tests/shell/coresight/unroll_loop_thread/.gitignore @@ -0,0 +1 @@ +unroll_loop_thread diff --git a/tools/perf/tests/shell/coresight/unroll_loop_thread/Makefile b= /tools/perf/tests/shell/coresight/unroll_loop_thread/Makefile new file mode 100644 index 000000000000..6264c4e3abd1 --- /dev/null +++ b/tools/perf/tests/shell/coresight/unroll_loop_thread/Makefile @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 +include ../Makefile.miniconfig + +# Binary to produce +BIN=3Dunroll_loop_thread +# Any linking/libraries needed for the binary - empty if none needed +LIB=3D-pthread + +all: $(BIN) + +$(BIN): $(BIN).c +ifdef CORESIGHT +ifeq ($(ARCH),arm64) +# Build line + $(Q)$(CC) $(BIN).c -o $(BIN) $(LIB) +endif +endif + +install-tests: all +ifdef CORESIGHT +ifeq ($(ARCH),arm64) +# Install the test tool in the right place + $(call QUIET_INSTALL, tests) \ + $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)= /$(BIN)'; \ + $(INSTALL) $(BIN) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)/$(= BIN)/$(BIN)' +endif +endif + +clean: + $(Q)$(RM) -f $(BIN) + +.PHONY: all clean install-tests diff --git a/tools/perf/tests/shell/coresight/unroll_loop_thread/unroll_loo= p_thread.c b/tools/perf/tests/shell/coresight/unroll_loop_thread/unroll_loo= p_thread.c new file mode 100644 index 000000000000..8f6d384208ed --- /dev/null +++ b/tools/perf/tests/shell/coresight/unroll_loop_thread/unroll_loop_threa= d.c @@ -0,0 +1,74 @@ +// SPDX-License-Identifier: GPL-2.0 +// Carsten Haitzler , 2021 +#include +#include +#include +#include +#include + +struct args { + pthread_t th; + unsigned int in; + void *ret; +}; + +static void *thrfn(void *arg) +{ + struct args *a =3D arg; + unsigned int i, in =3D a->in; + + for (i =3D 0; i < 10000; i++) { + asm volatile ( +// force an unroll of thia add instruction so we can test long runs of code +#define SNIP1 "add %[in], %[in], #1\n" +// 10 +#define SNIP2 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 +// 100 +#define SNIP3 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 +// 1000 +#define SNIP4 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 +// 10000 +#define SNIP5 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 +// 100000 + SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 + : /* out */ + : /* in */ [in] "r" (in) + : /* clobber */ + ); + } +} + +static pthread_t new_thr(void *(*fn) (void *arg), void *arg) +{ + pthread_t t; + pthread_attr_t attr; + + pthread_attr_init(&attr); + pthread_create(&t, &attr, fn, arg); + return t; +} + +int main(int argc, char **argv) +{ + unsigned int i, thr; + pthread_t threads[256]; + struct args args[256]; + + if (argc < 2) { + printf("ERR: %s [numthreads]\n", argv[0]); + exit(1); + } + + thr =3D atoi(argv[1]); + if ((thr > 256) || (thr < 1)) { + printf("ERR: threads 1-256\n"); + exit(1); + } + for (i =3D 0; i < thr; i++) { + args[i].in =3D rand(); + args[i].th =3D new_thr(thrfn, &(args[i])); + } + for (i =3D 0; i < thr; i++) + pthread_join(args[i].th, &(args[i].ret)); + return 0; +} --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7E74C6FA89 for ; Fri, 9 Sep 2022 15:33:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232414AbiIIPdN (ORCPT ); Fri, 9 Sep 2022 11:33:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39502 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232014AbiIIPck (ORCPT ); Fri, 9 Sep 2022 11:32:40 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id E94D5146D0F; Fri, 9 Sep 2022 08:32:27 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EB4031AED; Fri, 9 Sep 2022 08:28:50 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 43FDC3F73D; Fri, 9 Sep 2022 08:28:43 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 11/13] perf test: Add unroll thread test shell script Date: Fri, 9 Sep 2022 16:28:01 +0100 Message-Id: <20220909152803.2317006-12-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler This adds scripts to drive the unroll thread tests to compare perf output against a minimum bar of content/quality. Signed-off-by: Carsten Haitzler --- .../shell/coresight/unroll_loop_thread_10.sh | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100755 tools/perf/tests/shell/coresight/unroll_loop_thread_10.= sh diff --git a/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh b/to= ols/perf/tests/shell/coresight/unroll_loop_thread_10.sh new file mode 100755 index 000000000000..f48c85230b15 --- /dev/null +++ b/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh @@ -0,0 +1,18 @@ +#!/bin/sh -e +# CoreSight / Unroll Loop Thread 10 + +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +TEST=3D"unroll_loop_thread" +. $(dirname $0)/../lib/coresight.sh +ARGS=3D"10" +DATV=3D"10" +DATA=3D"$DATD/perf-$TEST-$DATV.data" + +perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS + +perf_dump_aux_verify "$DATA" 10 10 10 + +err=3D$? +exit $err --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1CE0BECAAA1 for ; Fri, 9 Sep 2022 15:33:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229982AbiIIPdU (ORCPT ); Fri, 9 Sep 2022 11:33:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232040AbiIIPcm (ORCPT ); Fri, 9 Sep 2022 11:32:42 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id BFF1AC165D; Fri, 9 Sep 2022 08:32:29 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9DDF91BA8; Fri, 9 Sep 2022 08:28:52 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E22D13F73D; Fri, 9 Sep 2022 08:28:44 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 12/13] perf test: Add git ignore for tmp and output files of CoreSight tests Date: Fri, 9 Sep 2022 16:28:02 +0100 Message-Id: <20220909152803.2317006-13-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Ignore other output files of the new CoreSight tests so they don't fill git status with noise we don't need or want. Signed-off-by: Carsten Haitzler --- tools/perf/.gitignore | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore index faa23b5d32f5..a653311d9693 100644 --- a/tools/perf/.gitignore +++ b/tools/perf/.gitignore @@ -22,6 +22,7 @@ perf-archive perf-iostat tags TAGS +stats-*.csv cscope* config.mak config.mak.autogen @@ -29,6 +30,7 @@ config.mak.autogen *-flex.* *.pyc *.pyo +*.stdout .config-detected util/intel-pt-decoder/inat-tables.c arch/*/include/generated/ --=20 2.32.0 From nobody Mon Apr 6 06:11:40 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40E90ECAAA1 for ; Fri, 9 Sep 2022 15:33:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232438AbiIIPdY (ORCPT ); Fri, 9 Sep 2022 11:33:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39192 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231949AbiIIPcq (ORCPT ); Fri, 9 Sep 2022 11:32:46 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id BB920146D16; Fri, 9 Sep 2022 08:32:32 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 54E601BB0; Fri, 9 Sep 2022 08:28:54 -0700 (PDT) Received: from e126387.arm.com (unknown [10.57.17.154]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9042A3F73D; Fri, 9 Sep 2022 08:28:46 -0700 (PDT) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH v9 13/13] perf test: Add relevant documentation about CoreSight testing Date: Fri, 9 Sep 2022 16:28:03 +0100 Message-Id: <20220909152803.2317006-14-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Carsten Haitzler Add/improve documentation helping people get started with CoreSight and perf as well as describe the testing and how it works. Cc: linux-doc@vger.kernel.org Signed-off-by: Carsten Haitzler --- .../trace/coresight/coresight-perf.rst | 158 ++++++++++++++++++ .../perf/Documentation/perf-arm-coresight.txt | 5 + 2 files changed, 163 insertions(+) create mode 100644 Documentation/trace/coresight/coresight-perf.rst create mode 100644 tools/perf/Documentation/perf-arm-coresight.txt diff --git a/Documentation/trace/coresight/coresight-perf.rst b/Documentati= on/trace/coresight/coresight-perf.rst new file mode 100644 index 000000000000..d087aae7d492 --- /dev/null +++ b/Documentation/trace/coresight/coresight-perf.rst @@ -0,0 +1,158 @@ +.. SPDX-License-Identifier: GPL-2.0 + +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D +CoreSight - Perf +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + + :Author: Carsten Haitzler + :Date: June 29th, 2022 + +Perf is able to locally access CoreSight trace data and store it to the +output perf data files. This data can then be later decoded to give the +instructions that were traced for debugging or profiling purposes. You +can log such data with a perf record command like:: + + perf record -e cs_etm//u testbinary + +This would run some test binary (testbinary) until it exits and record +a perf.data trace file. That file would have AUX sections if CoreSight +is working correctly. You can dump the content of this file as +readable text with a command like:: + + perf report --stdio --dump -i perf.data + +You should find some sections of this file have AUX data blocks like:: + + 0x1e78 [0x30]: PERF_RECORD_AUXTRACE size: 0x11dd0 offset: 0 ref: 0x1b= 614fc1061b0ad1 idx: 0 tid: 531230 cpu: -1 + + . ... CoreSight ETM Trace data: size 73168 bytes + Idx:0; ID:10; I_ASYNC : Alignment Synchronisation. + Idx:12; ID:10; I_TRACE_INFO : Trace Info.; INFO=3D0x0 { CC.0= } + Idx:17; ID:10; I_ADDR_L_64IS0 : Address, Long, 64 bit, IS0.;= Addr=3D0x0000000000000000; + Idx:26; ID:10; I_TRACE_ON : Trace On. + Idx:27; ID:10; I_ADDR_CTXT_L_64IS0 : Address & Context, Long= , 64 bit, IS0.; Addr=3D0x0000FFFFB6069140; Ctxt: AArch64,EL0, NS; + Idx:38; ID:10; I_ATOM_F6 : Atom format 6.; EEEEEEEEEEEEEEEEE= EEEEEEE + Idx:39; ID:10; I_ATOM_F6 : Atom format 6.; EEEEEEEEEEEEEEEEE= EEEEEEE + Idx:40; ID:10; I_ATOM_F6 : Atom format 6.; EEEEEEEEEEEEEEEEE= EEEEEEE + Idx:41; ID:10; I_ATOM_F6 : Atom format 6.; EEEEEEEEEEEN + ... + +If you see these above, then your system is tracing CoreSight data +correctly. + +To compile perf with CoreSight support in the tools/perf directory do:: + + make CORESIGHT=3D1 + +This requires OpenCSD to build. You may install distribution packages +for the support such as libopencsd and libopencsd-dev or download it +and build yourself. Upstream OpenCSD is located at: + + https://github.com/Linaro/OpenCSD + +For complete information on building perf with CoreSight support and +more extensive usage look at: + + https://github.com/Linaro/OpenCSD/blob/master/HOWTO.md + + +Kernel CoreSight Support +------------------------ + +You will also want CoreSight support enabled in your kernel config. +Ensure it is enabled with:: + + CONFIG_CORESIGHT=3Dy + +There are various other CoreSight options you probably also want +enabled like:: + + CONFIG_CORESIGHT_LINKS_AND_SINKS=3Dy + CONFIG_CORESIGHT_LINK_AND_SINK_TMC=3Dy + CONFIG_CORESIGHT_CATU=3Dy + CONFIG_CORESIGHT_SINK_TPIU=3Dy + CONFIG_CORESIGHT_SINK_ETBV10=3Dy + CONFIG_CORESIGHT_SOURCE_ETM4X=3Dy + CONFIG_CORESIGHT_CTI=3Dy + CONFIG_CORESIGHT_CTI_INTEGRATION_REGS=3Dy + +Please refer to the kernel configuration help for more information. + +Perf test - Verify kernel and userspace perf CoreSight work +----------------------------------------------------------- + +When you run perf test, it will do a lot of self tests. Some of those +tests will cover CoreSight (only if enabled and on ARM64). You +generally would run perf test from the tools/perf directory in the +kernel tree. Some tests will check some internal perf support like: + + Check Arm CoreSight trace data recording and synthesized samples + Check Arm SPE trace data recording and synthesized samples + +Some others will actually use perf record and some test binaries that +are in tests/shell/coresight and will collect traces to ensure a +minimum level of functionality is met. The scripts that launch these +tests are in the same directory. These will all look like: + + CoreSight / ASM Pure Loop + CoreSight / Memcpy 16k 10 Threads + CoreSight / Thread Loop 10 Threads - Check TID + etc. + +These perf record tests will not run if the tool binaries do not exist +in tests/shell/coresight/\*/ and will be skipped. If you do not have +CoreSight support in hardware then either do not build perf with +CoreSight support or remove these binaries in order to not have these +tests fail and have them skip instead. + +These tests will log historical results in the current working +directory (e.g. tools/perf) and will be named stats-\*.csv like: + + stats-asm_pure_loop-out.csv + stats-memcpy_thread-16k_10.csv + ... + +These statistic files log some aspects of the AUX data sections in +the perf data output counting some numbers of certain encodings (a +good way to know that it's working in a very simple way). One problem +with CoreSight is that given a large enough amount of data needing to +be logged, some of it can be lost due to the processor not waking up +in time to read out all the data from buffers etc.. You will notice +that the amount of data collected can vary a lot per run of perf test. +If you wish to see how this changes over time, simply run perf test +multiple times and all these csv files will have more and more data +appended to it that you can later examine, graph and otherwise use to +figure out if things have become worse or better. + +This means sometimes these tests fail as they don't capture all the +data needed. This is about tracking quality and amount of data +produced over time and to see when changes to the Linux kernel improve +quality of traces. + +Be aware that some of these tests take quite a while to run, specifically +in processing the perf data file and dumping contents to then examine what +is inside. + +You can change where these csv logs are stored by setting the +PERF_TEST_CORESIGHT_STATDIR environment variable before running perf +test like:: + + export PERF_TEST_CORESIGHT_STATDIR=3D/var/tmp + perf test + +They will also store resulting perf output data in the current +directory for later inspection like:: + + perf-asm_pure_loop-out.data + perf-memcpy_thread-16k_10.data + ... + +You can alter where the perf data files are stored by setting the +PERF_TEST_CORESIGHT_DATADIR environment variable such as:: + + PERF_TEST_CORESIGHT_DATADIR=3D/var/tmp + perf test + +You may wish to set these above environment variables if you wish to +keep the output of tests outside of the current working directory for +longer term storage and examination. diff --git a/tools/perf/Documentation/perf-arm-coresight.txt b/tools/perf/D= ocumentation/perf-arm-coresight.txt new file mode 100644 index 000000000000..c117fc50a2a9 --- /dev/null +++ b/tools/perf/Documentation/perf-arm-coresight.txt @@ -0,0 +1,5 @@ +Arm CoreSight Support +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +For full documentation, see Documentation/trace/coresight/coresight-perf.r= st +in the kernel tree. --=20 2.32.0