kernel.git/tools/perf/Documentation/topdown.txt, branch master

perf Document: Add TPEBS (Timed PEBS(Precise Event-Based Sampling)) to Documents

2024-08-13T18:25:33Z

TPEBS (Timed PEBS(Precise Event-Based Sampling)) is a new feature Intel PMU from Granite Rapids microarchitecture. It will be used in new TMA (Top-Down Microarchitecture Analysis) releases. Add related introduction to documents while adding new code to support it in 'perf stat'. Reviewed-by: Namhyung Kim Signed-off-by: Weilin Wang Acked-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Caleb Biggers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kan Liang Cc: Perry Taylor Cc: Peter Zijlstra Cc: Samantha Alt Link: https://lore.kernel.org/r/20240720062102.444578-8-weilin.wang@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf doc: Refresh topdown documentation

2023-02-19T11:10:15Z

perf stat now supports --topdown for any platform with the TopdownL1 metric group including Intel before Icelake. Tweak the documentation to reflect this. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Alexandre Torgue Cc: Andrii Nakryiko Cc: Athira Rajeev Cc: Caleb Biggers Cc: Eduard Zingerman Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jing Zhang Cc: Jiri Olsa Cc: John Garry Cc: Kajol Jain Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Maxime Coquelin Cc: Namhyung Kim Cc: Perry Taylor Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Sandipan Das Cc: Sean Christopherson Cc: Stephane Eranian Cc: Suzuki Poulouse Cc: Xing Zhengjun Cc: linux-arm-kernel@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Link: https://lore.kernel.org/r/20230219092848.639226-43-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf doc: Fix typos all over the place

2021-09-27T12:32:28Z

Considering that perf and its subcommands have so many parameters, the documentation is always the first stop for perf beginners. Fixing some spelling errors will relax the eyes of some readers a little bit. s/specicfication/specification/ s/caheline/cacheline/ s/tranasaction/transaction/ s/complan/complain/ s/sched_wakep/sched_wakeup/ s/possble/possible/ s/methology/methodology/ Signed-off-by: Like Xu Acked-by: Ian Rogers Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Jonathan Corbet Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20210924081942.38368-1-likexu@tencent.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Update topdown documentation to permit rdpmc calls

2021-04-22T19:09:39Z

Update Topdown documentation to permit calls to rdpmc, and describe interaction with system calls. Signed-off-by: Ray Kinsella Reviewed-by: Andi Kleen Cc: Jiri Olsa Cc: Kan Liang Link: http://lore.kernel.org/lkml/20210421091009.1711565-1-mdr@ashroe.eu Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Update topdown documentation for Sapphire Rapids

2021-02-08T19:25:00Z

Update Topdown extension on Sapphire Rapids and how to collect the L2 events. Signed-off-by: Kan Liang Cc: Andi Kleen Cc: Jin Yao Cc: Jiri Olsa Cc: Madhavan Srinivasan Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/1612296553-21962-10-git-send-email-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add documentation for topdown metrics

2020-09-17T18:48:31Z

Add some documentation how to use the topdown metrics in ring 3. Signed-off-by: Andi Kleen Co-developed-by: Kan Liang Acked-by: Jiri Olsa Acked-by: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20200911144808.27603-5-kan.liang@linux.intel.com Signed-off-by: Kan Liang Signed-off-by: Arnaldo Carvalho de Melo