linux-kernel - [PATCH v5 0/7] Event parsing fixes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240828140736.156703-1-james.clark@linaro.org>
Date: Wed, 28 Aug 2024 15:07:14 +0100
From: James Clark <james.clark@...aro.org>
To: irogers@...gle.com,
	linux-perf-users@...r.kernel.org,
	kan.liang@...ux.intel.com,
	ak@...ux.intel.com
Cc: James Clark <james.clark@...aro.org>,
	John Garry <john.g.garry@...cle.com>,
	Will Deacon <will@...nel.org>,
	Mike Leach <mike.leach@...aro.org>,
	Leo Yan <leo.yan@...ux.dev>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Weilin Wang <weilin.wang@...el.com>,
	Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
	Dominique Martinet <asmadeus@...ewreck.org>,
	Yang Jihong <yangjihong@...edance.com>,
	Colin Ian King <colin.i.king@...il.com>,
	Ze Gao <zegao2021@...il.com>,
	Yunseong Kim <yskelg@...il.com>,
	Sun Haiyong <sunhaiyong@...ngson.cn>,
	Jing Zhang <renyu.zj@...ux.alibaba.com>,
	Yicong Yang <yangyicong@...ilicon.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v5 0/7] Event parsing fixes

I rebased this one and made some other fixes so that I could test it,
so I thought I'd repost it here in case it's helpful. I also added a
new test.

But for the testing it all looks ok.

There is one small difference where it now hides _all_ <not supported>
events, when previously it would only hide some selected subset of
events like "stalled-cycles-frontend". I think this is now more
consistent across platforms because, for example, Apple M only has
cycles and instructions, and the rest of the default events would
always show as <not supported> there.

Tested on Raptor Lake, Juno, N1, Ampere (with the DSU cycles PMU) and
I also faked an Apple M on Juno. 

Changes since v4:

  * Hide all <not supported> default events when not verbose
  * Remove previous note about <not supported> behavior from the cover
    letter and replace it with a new note about the new behavior
 
Changes since v3:

  * Rebase onto perf-tools-next 6236ebe07
  * Fix Intel TPEBS counting mode test
  * Fix arm-spe build
  * Add support for DT devices in stat test
  * Add a new test for hybrid perf stat default arguments

Ian Rogers (5):
  perf evsel: Add alternate_hw_config and use in evsel__match
  perf stat: Uniquify event name improvements
  perf stat: Remove evlist__add_default_attrs use strings
  perf evsel x86: Make evsel__has_perf_metrics work for legacy events
  perf evsel: Remove pmu_name

James Clark (2):
  perf test: Make stat test work on DT devices
  perf test: Add a test for default perf stat command

 tools/perf/arch/arm64/util/arm-spe.c          |   4 +-
 tools/perf/arch/x86/util/evlist.c             |  74 +----
 tools/perf/arch/x86/util/evsel.c              |  35 ++-
 tools/perf/builtin-diff.c                     |   6 +-
 tools/perf/builtin-stat.c                     | 291 +++++++-----------
 tools/perf/tests/parse-events.c               |   2 +-
 tools/perf/tests/shell/stat.sh                |  33 +-
 .../perf/tests/shell/test_stat_intel_tpebs.sh |  11 +-
 tools/perf/util/evlist.c                      |  46 +--
 tools/perf/util/evlist.h                      |  12 -
 tools/perf/util/evsel.c                       |  28 +-
 tools/perf/util/evsel.h                       |  22 +-
 tools/perf/util/metricgroup.c                 |   4 +-
 tools/perf/util/parse-events.c                |  58 ++--
 tools/perf/util/parse-events.h                |   8 +-
 tools/perf/util/parse-events.y                |   2 +-
 tools/perf/util/pmu.c                         |   6 +-
 tools/perf/util/pmu.h                         |   2 +-
 tools/perf/util/stat-display.c                | 109 +++++--
 tools/perf/util/stat-shadow.c                 |  14 +-
 tools/perf/util/stat.c                        |   2 +-
 21 files changed, 356 insertions(+), 413 deletions(-)

-- 
2.34.1