linux-kernel - [PATCHSET 0/6] perf mem: Basic support for data type profiling (v1)

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Message-ID: <20240731235505.710436-1-namhyung@kernel.org>
Date: Wed, 31 Jul 2024 16:54:59 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Kan Liang <kan.liang@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-perf-users@...r.kernel.org,
	Stephane Eranian <eranian@...gle.com>,
	Athira Rajeev <atrajeev@...ux.vnet.ibm.com>
Subject: [PATCHSET 0/6] perf mem: Basic support for data type profiling (v1)

Hello,

As we added data type profiling, 'perf mem report' should support that
as well.  This patches just added a couple of convenient options.

  $ perf mem report -T -s mem
  # To display the perf.data header info, please use --header/--header-only options.
  #
  #
  # Total Lost Samples: 0
  #
  # Samples: 131  of event 'cpu/mem-loads,ldlat=30/P'
  # Total weight : 18561
  # Sort order   : mem,type
  #
  # Overhead       Samples  Memory access                            Data Type
  # ........  ............  .......................................  .........
  #
      14.84%            22  L1 hit                                   (unknown)
      12.02%             8  RAM hit                                  (unknown)
       7.68%             8  LFB/MAB hit                              (unknown)
       6.29%            12  L1 hit                                   (stack operation)
       3.97%             5  LFB/MAB hit                              struct psi_group_cpu
       3.69%             3  L1 hit                                   struct   
       3.18%             3  LFB/MAB hit                              (stack operation)
       2.89%             5  L3 hit                                   (unknown)
       2.58%             3  L1 hit                                   unsigned int
       2.31%             2  L1 hit                                   struct psi_group_cpu
       2.21%             2  LFB/MAB hit                              struct cfs_rq
       2.19%             2  RAM hit                                  struct sched_entity
       2.16%             1  L1 hit                                   struct task_struct
       1.85%             3  L1 hit                                   struct pcpu_hot
       1.78%             1  RAM hit                                  struct tss_struct
       1.72%             1  LFB/MAB hit                              struct mm_struct
       1.62%             2  L1 hit                                   struct psi_group
       ...


The code is also available at 'perf/mem-type-v1' branch in
git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git

Thanks,
Namhyung


Namhyung Kim (6):
  perf hist: Correct hist_entry->mem_info refcounts
  perf mem: Free the allocated sort string
  perf mem: Rework command option handling
  perf tools: Add mode argument to sort_help()
  perf mem: Add -s/--sort option
  perf mem: Add -T/--data-type option to report subcommand

 tools/perf/builtin-mem.c     | 100 ++++++++++++++++++++++-------------
 tools/perf/builtin-report.c  |   4 +-
 tools/perf/util/hist.c       |  14 ++---
 tools/perf/util/map_symbol.c |  18 +++++++
 tools/perf/util/map_symbol.h |   3 ++
 tools/perf/util/mem-info.c   |  13 +++++
 tools/perf/util/mem-info.h   |   1 +
 tools/perf/util/sort.c       |  12 +++--
 tools/perf/util/sort.h       |   2 +-
 9 files changed, 116 insertions(+), 51 deletions(-)

-- 
2.46.0.rc1.232.g9752f9e123-goog