On Wed, May 17, 2017 at 09:16:02PM -0700, David Carrillo-Cisneros wrote: > Add header record types to pipe-mode, reusing the functions > used in file-mode and leveraging the new struct feat_fd. > > Add the perf_event__synthesize_feature event call back to > process the new header records. > > Before this patch: > > $ perf record -o - -e cycles -c 100000 sleep 1 | perf report --stdio > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.000 MB - ] > ... > > After this patch: > $ perf record -o - -e cycles -c 100000 sleep 1 | perf report --stdio > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.000 MB - ] > # hostname : lphh7 > # os release : 4.11.0-dbx-up_perf > # perf version : 4.11.rc6.g6277c80 > # arch : x86_64 > # nrcpus online : 72 > # nrcpus avail : 72 > # cpudesc : Intel(R) Xeon(R) CPU E5-2696 v3 @ 2.30GHz > # cpuid : GenuineIntel,6,63,2 > # total memory : 263457192 kB > # cmdline : /root/perf record -o - -e cycles -c 100000 sleep 1 > # HEADER_CPU_TOPOLOGY info available, use -I to display > # HEADER_NUMA_TOPOLOGY info available, use -I to display > # pmu mappings: intel_bts = 6, uncore_imc_4 = 22, uncore_sbox_1 = 47, > uncore_cbox_5 = 33, uncore_ha_0 = 16, uncore_cbox > Percent | Source code & Disassembly of kcore for cycles (9 samples) > ...
thanks a lot for doing this, comments comming shortly jirka
