Messages in this thread | | | Date | Mon, 14 Dec 2020 10:22:11 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH 1/2] perf report: Support --header-only for pipe mode |
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Em Mon, Dec 14, 2020 at 12:00:19AM +0100, Jiri Olsa escreveu: > On Thu, Dec 10, 2020 at 03:13:01PM +0900, Namhyung Kim wrote: > > The --header-only checks file header and prints the feature data. But > > as pipe mode doesn't have it in the header it prints almost nothing. > > Change it to process first few records until it founds HEADER_FEATURE. > > > > Before: > > $ perf record -o- true | perf report -i- --header-only > > # ======== > > # captured on : Thu Dec 10 14:34:59 2020 > > # header version : 1 > > # data offset : 0 > > # data size : 0 > > # feat offset : 0 > > # ======== > > # > > > > After: > > $ perf record -o- true | perf report -i- --header-only > > # ======== > > # captured on : Thu Dec 10 14:49:11 2020 > > # header version : 1 > > # data offset : 0 > > # data size : 0 > > # feat offset : 0 > > # ======== > > # > > # hostname : balhae > > # os release : 5.7.17-1xxx > > # perf version : 5.10.rc6.gdb0ea13cc741 > > # arch : x86_64 > > # nrcpus online : 8 > > # nrcpus avail : 8 > > # cpudesc : Intel(R) Core(TM) i7-8665U CPU @ 1.90GHz > > # cpuid : GenuineIntel,6,142,12 > > # total memory : 16158916 kB > > # cmdline : perf record -o- true > > # event : name = cycles, , id = { 81, 82, 83, 84, 85, 86, 87, 88 }, size = 120, ... > > # CPU_TOPOLOGY info available, use -I to display > > # NUMA_TOPOLOGY info available, use -I to display > > # pmu mappings: intel_pt = 9, intel_bts = 8, software = 1, power = 20, uprobe = 7, ... > > # time of first sample : 0.000000 > > # time of last sample : 0.000000 > > # sample duration : 0.000 ms > > # MEM_TOPOLOGY info available, use -I to display > > # cpu pmu capabilities: branches=32, max_precise=3, pmu_name=skylake > > > > Signed-off-by: Namhyung Kim <namhyung@kernel.org> > > Acked-by: Jiri Olsa <jolsa@redhat.com>
Thanks, applied.
- Arnaldo
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