From nobody Fri Feb 13 14:08:44 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 8FC1BCE7A81 for ; Mon, 25 Sep 2023 06:21:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232279AbjIYGVL (ORCPT ); Mon, 25 Sep 2023 02:21:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33884 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232176AbjIYGUQ (ORCPT ); Mon, 25 Sep 2023 02:20:16 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C877FCFE; Sun, 24 Sep 2023 23:20:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695622803; x=1727158803; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=n6yikVt+0bFqfQMh0ZJ7Bo3KsJhfniEzQImEQORw07c=; b=ccWXIxn3VMW+ocyXUBY5af3GSEM9bgS3WSJ1vTBwls4JZvKdjK5K0ngM QleikrdviD3d6SIQamsmYKHs4M0eLFUvYFYumx5VVoddYC5LWYc1nw7jw FcmdNaPRK5AoD4FLSsewUt32fHZbX+fpHTl5iqL+ZFdcwLLMJL+IIO+o/ pw8AQMeOrRM/Q6LnAtDaFnTFPekmBJQTCXo2Cdg1Zb5bJQ7PxfiL7mi5y x8sY8cjxnE2G4NqvbWTQgz4Sdy2ocT/NQP6G4rty6fEyMjOt1tLhel+zw OsxWjq2nfDhBuUrSvaxMJuoSUo1z4MmOAkdRzCfPg8cmnANjcGlQAvpf9 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10843"; a="445279511" X-IronPort-AV: E=Sophos;i="6.03,174,1694761200"; d="scan'208";a="445279511" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Sep 2023 23:19:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10843"; a="818494402" X-IronPort-AV: E=Sophos;i="6.03,174,1694761200"; d="scan'208";a="818494402" Received: from b49691a75598.jf.intel.com ([10.54.34.22]) by fmsmga004.fm.intel.com with ESMTP; 24 Sep 2023 23:19:21 -0700 From: weilin.wang@intel.com To: weilin.wang@intel.com, Ian Rogers , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Adrian Hunter , Kan Liang Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Perry Taylor , Samantha Alt , Caleb Biggers , Mark Rutland Subject: [RFC PATCH 17/25] perf stat: Handle taken alone in hardware-grouping Date: Sun, 24 Sep 2023 23:18:16 -0700 Message-Id: <20230925061824.3818631-18-weilin.wang@intel.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20230925061824.3818631-1-weilin.wang@intel.com> References: <20230925061824.3818631-1-weilin.wang@intel.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: Weilin Wang Add taken alone into consideration when grouping. Only one taken alone event is supported per group. Signed-off-by: Weilin Wang --- tools/perf/pmu-events/jevents.py | 7 +++++-- tools/perf/pmu-events/pmu-events.h | 1 + tools/perf/util/metricgroup.c | 18 +++++++++++++----- tools/perf/util/metricgroup.h | 2 ++ 4 files changed, 21 insertions(+), 7 deletions(-) diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jeven= ts.py index d8c2fd258..56c09d10e 100755 --- a/tools/perf/pmu-events/jevents.py +++ b/tools/perf/pmu-events/jevents.py @@ -55,7 +55,9 @@ _json_event_attributes =3D [ # Counter this event could use 'counter', # Longer things (the last won't be iterated over during decompress). - 'long_desc' + 'long_desc', + # Taken alone event could not be collected in the same group with othe= r taken alone event + 'taken_alone' ] =20 # Attributes that are in pmu_unit_layout. @@ -71,7 +73,7 @@ _json_metric_attributes =3D [ ] # Attributes that are bools or enum int values, encoded as '0', '1',... _json_enum_attributes =3D ['aggr_mode', 'deprecated', 'event_grouping', 'p= erpkg', - 'size', 'fixed_size' + 'size', 'fixed_size', 'taken_alone' ] =20 def removesuffix(s: str, suffix: str) -> str: @@ -330,6 +332,7 @@ class JsonEvent: extra_desc +=3D ' Spec update: ' + jd['Errata'] self.pmu =3D unit_to_pmu(jd.get('Unit')) self.counter =3D jd.get('Counter') + self.taken_alone =3D jd.get('TakenAlone') self.size =3D jd.get('Size') self.fixed_size =3D jd.get('FixedSize') filter =3D jd.get('Filter') diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu= -events.h index 65e0c5dd8..ce10356e9 100644 --- a/tools/perf/pmu-events/pmu-events.h +++ b/tools/perf/pmu-events/pmu-events.h @@ -50,6 +50,7 @@ struct pmu_event { const char *unit; bool perpkg; bool deprecated; + bool taken_alone; }; =20 struct pmu_metric { diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 7884cb036..020db8e61 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -1624,6 +1624,7 @@ static void metricgroup__free_pmu_info(struct list_he= ad *pmu_info_list) static struct metricgroup__event_info *event_info__new(const char *name, const char *pmu_name, const char *counter, + bool taken_alone, bool free_counter) { int ret =3D 0; @@ -1637,6 +1638,7 @@ static struct metricgroup__event_info *event_info__ne= w(const char *name, pmu_name =3D "core"; } e->name =3D name; + e->taken_alone =3D taken_alone; e->free_counter =3D free_counter; //e->pmu_name =3D strdup(pmu_name); e->pmu_name =3D pmu_name; @@ -1674,7 +1676,8 @@ static int metricgroup__add_metric_event_callback(con= st struct pmu_event *pe, struct metricgroup__add_metric_event_data *d =3D data; =20 if (!strcasecmp(pe->name, d->event_name)) { - event =3D event_info__new(d->event_id, pe->pmu, pe->counter, /*free_coun= ter=3D*/false); + event =3D event_info__new(d->event_id, pe->pmu, pe->counter, + pe->taken_alone, /*free_counter=3D*/false); if (!event) return -ENOMEM; list_add(&event->nd, d->list); @@ -1797,6 +1800,8 @@ static int find_and_set_counters(struct metricgroup__= event_info *e, int ret; unsigned long find_bit =3D 0; =20 + if (e->taken_alone && current_group->taken_alone) + return -ENOSPC; if (e->free_counter) return 0; if (e->fixed_counter) { @@ -1831,11 +1836,13 @@ static int _insert_event(struct metricgroup__event_= info *e, list_add(&event->nd, &group->event_head); else list_add_tail(&event->nd, &group->event_head); + if (e->taken_alone) + group->taken_alone =3D true; return 0; } =20 /** - * Insert the new_group node at the end of the group list. + * Initialize the new group and insert it to the end of the group list. */ static int insert_new_group(struct list_head *head, struct metricgroup__group *new_group, @@ -1845,6 +1852,7 @@ static int insert_new_group(struct list_head *head, INIT_LIST_HEAD(&new_group->event_head); fill_counter_bitmap(new_group->gp_counters, 0, size); fill_counter_bitmap(new_group->fixed_counters, 0, fixed_size); + new_group->taken_alone =3D false; list_add_tail(&new_group->nd, head); return 0; } @@ -2045,8 +2053,8 @@ static int create_grouping(struct list_head *pmu_info= _list, //TODO: for each new core group, we should consider to add events that us= es fixed counters list_for_each_entry(e, event_info_list, nd) { bitmap_scnprintf(e->counters, NR_COUNTERS, bit_buf, NR_COUNTERS); - pr_debug("Event name %s, [pmu]=3D%s, [counters]=3D%s\n", e->name, - e->pmu_name, bit_buf); + pr_debug("Event name %s, [pmu]=3D%s, [counters]=3D%s, [taken_alone]=3D%d= \n", + e->name, e->pmu_name, bit_buf, e->taken_alone); ret =3D assign_event_grouping(e, pmu_info_list, &groups); if (ret) goto out; @@ -2085,7 +2093,7 @@ static int hw_aware_build_grouping(struct expr_parse_= ctx *ctx __maybe_unused, pr_debug("found event %s\n", id); if (!strncmp(id, special_pattern, strlen(special_pattern))) { struct metricgroup__event_info *event; - event =3D event_info__new(id, "default_core", "0", true); + event =3D event_info__new(id, "default_core", "0", false, true); if (!event) { ret =3D -ENOMEM; goto err_out; diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h index f9f8b7498..0ca9eeacc 100644 --- a/tools/perf/util/metricgroup.h +++ b/tools/perf/util/metricgroup.h @@ -81,6 +81,7 @@ struct metricgroup__event_info { const char *pmu_name; bool fixed_counter; bool free_counter; + bool taken_alone; /** The counters the event allowed to be collected on. */ DECLARE_BITMAP(counters, NR_COUNTERS); }; @@ -130,6 +131,7 @@ struct metricgroup__group { DECLARE_BITMAP(fixed_counters, NR_COUNTERS); /** Head to the list of event names in this group*/ struct list_head event_head; + bool taken_alone; }; =20 struct metricgroup__group_events { --=20 2.39.3