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Groups > linux.kernel > #1506673
| From | Jiri Olsa <jolsa@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [GIT PULL 00/52] New Tool: perf c2c |
| Date | 2016-10-23 13:10 +0200 |
| Message-ID | <svoP7-9x-11@gated-at.bofh.it> (permalink) |
| References | <sun8J-Pf-5@gated-at.bofh.it> <suZQP-YS-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sat, Oct 22, 2016 at 10:28:06AM +0200, Ingo Molnar wrote: SNIP > > tools/perf/ui/browsers/hists.h | 1 + > > tools/perf/util/hist.c | 1 + > > tools/perf/util/hist.h | 1 + > > tools/perf/util/mem-events.c | 128 ++ > > tools/perf/util/mem-events.h | 37 + > > tools/perf/util/sort.c | 2 +- > > tools/perf/util/sort.h | 1 + > > 13 files changed, 3210 insertions(+), 2 deletions(-) > > create mode 100644 tools/perf/Documentation/perf-c2c.txt > > create mode 100644 tools/perf/builtin-c2c.c > > Pulled the perf-c2c-for-mingo-20161021 tag, thanks a lot Arnaldo! > > I can see some teething problems. For example if I run it on an older kernel (v4.4 > distro kernel), I get this: > > triton:~/tip> perf c2c record perf bench sched pipe > # Running 'sched/pipe' benchmark: > # Executed 1000000 pipe operations between two processes > > Total time: 12.001 [sec] > > 12.001919 usecs/op > 83320 ops/sec > [ perf record: Woken up 18 times to write data ] > [ perf record: Captured and wrote 5.356 MB perf.data (69804 samples) ] > > but there's no 'perf c2c report' TUI output at all: > > Shared Data Cache Line Table (0 entries, sorted on remote HITMs) > Total Rmt ----- LLC Load Hitm ----- ---- Store Reference ---- --- Load Dram ---- LLC Total ----- Core Load Hit ----- -- LLC Load Hit - > Index Cacheline records Hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss Loads FB L1 L2 Llc Rm > > and just an empty screen. > > If I do 'perf report' I get two events: > > Available samples > 24K cpu/mem-loads,ldlat=30/P > 45K cpu/mem-stores/P > > and both have some real data. > > What am I missing? hm, most likely you did not generate any remote HITMs.. if it was on the laptop? you might get some results for local HITMs with -d option: $ perf c2c report -d lcl the default display/filter is for Remote HITMs.. perhaps we could be smart enough and switch to local when we found no data for remote jirka
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[GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 16/52] perf c2c report: Add hitm related dimension keys Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 29/52] perf c2c report: Add 'node' sort key Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 26/52] perf c2c report: Add 'pid' sort key Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 02/52] perf c2c: Introduce c2c_add_stats function Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 45/52] perf c2c report: Recalc width of global sort entries Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 30/52] perf c2c report: Add stats related sort keys Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 27/52] perf c2c report: Add 'tid' sort key Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 50/52] perf c2c: Add man page and credits Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 31/52] perf c2c report: Add 'cpucnt' sort key Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 19/52] perf c2c report: Add llc and remote loads related dimension keys Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 39/52] perf c2c report: Add shared cachelines stats stdio output Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 10/52] perf c2c report: Add cacheline hists processing Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 23/52] perf c2c report: Add hitm percent sort key Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 05/52] perf c2c: Add report subcommand Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 04/52] perf c2c: Add record subcommand Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
[PATCH 15/52] perf c2c report: Add 'iaddr' dimension key Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-20 17:20 +0200
Re: [GIT PULL 00/52] New Tool: perf c2c Kim Phillips <kim.phillips@arm.com> - 2016-10-21 01:10 +0200
[PATCH] perf c2c report: Properly check data presence in rb_tree loop Jiri Olsa <jolsa@redhat.com> - 2016-10-21 02:20 +0200
Re: [PATCH] perf c2c report: Properly check data presence in rb_tree loop Kim Phillips <kim.phillips@arm.com> - 2016-10-21 21:30 +0200
[tip:perf/core] perf c2c report: Add main TUI browser tip-bot for Jiri Olsa <tipbot@zytor.com> - 2016-10-22 11:00 +0200
Re: [GIT PULL 00/52] New Tool: perf c2c Jiri Olsa <jolsa@redhat.com> - 2016-10-21 02:30 +0200
Re: [GIT PULL 00/52] New Tool: perf c2c Ingo Molnar <mingo@kernel.org> - 2016-10-22 10:30 +0200
Re: [GIT PULL 00/52] New Tool: perf c2c Jiri Olsa <jolsa@redhat.com> - 2016-10-23 13:10 +0200
Re: [GIT PULL 00/52] New Tool: perf c2c Andi Kleen <andi@firstfloor.org> - 2016-10-24 01:50 +0200
Re: [GIT PULL 00/52] New Tool: perf c2c Jiri Olsa <jolsa@redhat.com> - 2016-10-24 08:40 +0200
Re: [GIT PULL 00/52] New Tool: perf c2c Ingo Molnar <mingo@kernel.org> - 2016-10-24 11:30 +0200
Re: [GIT PULL 00/52] New Tool: perf c2c Jiri Olsa <jolsa@redhat.com> - 2016-10-24 11:50 +0200
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