tools/perf/Documentation/perf-record.txt | 5 +++++ tools/perf/util/parse-branch-options.c | 3 +++ 2 files changed, 8 insertions(+)
This adds all remaining branch filters i.e no_cycles, no_flags and hw_index
to perf record tool. While here, also updates the documentation.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: linux-perf-users@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
tools/perf/Documentation/perf-record.txt | 5 +++++
tools/perf/util/parse-branch-options.c | 3 +++
2 files changed, 8 insertions(+)
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index e41ae950fdc3..7803c0c4c8f9 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -388,6 +388,7 @@ following filters are defined:
- any_call: any function call or system call
- any_ret: any function return or system call return
- ind_call: any indirect branch
+ - ind_jmp: any indirect jump
- call: direct calls, including far (to/from kernel) calls
- u: only when the branch target is at the user level
- k: only when the branch target is in the kernel
@@ -396,6 +397,10 @@ following filters are defined:
- no_tx: only when the target is not in a hardware transaction
- abort_tx: only when the target is a hardware transaction abort
- cond: conditional branches
+ - call_stack: save call stack
+ - no_flags: don't save branch flags e.g prediction, misprediction etc
+ - no_cycles: don't save branch cycles
+ - hw_index: save branch hardware index
- save_type: save branch type during sampling in case binary is not available later
For the platforms with Intel Arch LBR support (12th-Gen+ client or
4th-Gen Xeon+ server), the save branch type is unconditionally enabled
diff --git a/tools/perf/util/parse-branch-options.c b/tools/perf/util/parse-branch-options.c
index 31faf2bb49ff..fd67d204d720 100644
--- a/tools/perf/util/parse-branch-options.c
+++ b/tools/perf/util/parse-branch-options.c
@@ -30,8 +30,11 @@ static const struct branch_mode branch_modes[] = {
BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),
BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),
BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),
+ BRANCH_OPT("no_flags", PERF_SAMPLE_BRANCH_NO_FLAGS),
+ BRANCH_OPT("no_cycles", PERF_SAMPLE_BRANCH_NO_CYCLES),
BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE),
BRANCH_OPT("stack", PERF_SAMPLE_BRANCH_CALL_STACK),
+ BRANCH_OPT("hw_index", PERF_SAMPLE_BRANCH_HW_INDEX),
BRANCH_OPT("priv", PERF_SAMPLE_BRANCH_PRIV_SAVE),
BRANCH_END
};
--
2.25.1
Em Mon, Dec 05, 2022 at 12:14:43PM +0530, Anshuman Khandual escreveu: > This adds all remaining branch filters i.e no_cycles, no_flags and hw_index > to perf record tool. While here, also updates the documentation. Thanks, applied. - Arnaldo > Cc: Peter Zijlstra <peterz@infradead.org> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: Arnaldo Carvalho de Melo <acme@kernel.org> > Cc: linux-perf-users@vger.kernel.org > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> > --- > tools/perf/Documentation/perf-record.txt | 5 +++++ > tools/perf/util/parse-branch-options.c | 3 +++ > 2 files changed, 8 insertions(+) > > diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt > index e41ae950fdc3..7803c0c4c8f9 100644 > --- a/tools/perf/Documentation/perf-record.txt > +++ b/tools/perf/Documentation/perf-record.txt > @@ -388,6 +388,7 @@ following filters are defined: > - any_call: any function call or system call > - any_ret: any function return or system call return > - ind_call: any indirect branch > + - ind_jmp: any indirect jump > - call: direct calls, including far (to/from kernel) calls > - u: only when the branch target is at the user level > - k: only when the branch target is in the kernel > @@ -396,6 +397,10 @@ following filters are defined: > - no_tx: only when the target is not in a hardware transaction > - abort_tx: only when the target is a hardware transaction abort > - cond: conditional branches > + - call_stack: save call stack > + - no_flags: don't save branch flags e.g prediction, misprediction etc > + - no_cycles: don't save branch cycles > + - hw_index: save branch hardware index > - save_type: save branch type during sampling in case binary is not available later > For the platforms with Intel Arch LBR support (12th-Gen+ client or > 4th-Gen Xeon+ server), the save branch type is unconditionally enabled > diff --git a/tools/perf/util/parse-branch-options.c b/tools/perf/util/parse-branch-options.c > index 31faf2bb49ff..fd67d204d720 100644 > --- a/tools/perf/util/parse-branch-options.c > +++ b/tools/perf/util/parse-branch-options.c > @@ -30,8 +30,11 @@ static const struct branch_mode branch_modes[] = { > BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND), > BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP), > BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL), > + BRANCH_OPT("no_flags", PERF_SAMPLE_BRANCH_NO_FLAGS), > + BRANCH_OPT("no_cycles", PERF_SAMPLE_BRANCH_NO_CYCLES), > BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE), > BRANCH_OPT("stack", PERF_SAMPLE_BRANCH_CALL_STACK), > + BRANCH_OPT("hw_index", PERF_SAMPLE_BRANCH_HW_INDEX), > BRANCH_OPT("priv", PERF_SAMPLE_BRANCH_PRIV_SAVE), > BRANCH_END > }; > -- > 2.25.1 -- - Arnaldo
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