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Message-ID: <37D7C6CF3E00A74B8858931C1DB2F0770194C05D@SHSMSX103.ccr.corp.intel.com> Date: Mon, 28 Sep 2015 20:05:21 +0000 From: "Liang, Kan" <kan.liang@...el.com> To: "acme@...nel.org" <acme@...nel.org>, "jolsa@...nel.org" <jolsa@...nel.org> CC: "a.p.zijlstra@...llo.nl" <a.p.zijlstra@...llo.nl>, "luto@...nel.org" <luto@...nel.org>, "mingo@...hat.com" <mingo@...hat.com>, "eranian@...gle.com" <eranian@...gle.com>, "ak@...ux.intel.com" <ak@...ux.intel.com>, "mark.rutland@....com" <mark.rutland@....com>, "Hunter, Adrian" <adrian.hunter@...el.com>, "namhyung@...nel.org" <namhyung@...nel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: RE: [PATCH V10 0/8] Freq/CPU%/CORE_BUSY% support Hi Arnaldo and Jirka, Any comments for the V10 patch set? Thanks, Kan > > From: Kan Liang <kan.liang@...el.com> > > This patch set supports per-sample freq/CPU%/CORE_BUSY% print in perf > report. > For printing these information, the perf.data file must have been obtained > by group read and using special events cycles, ref-cycles, msr/tsc/, > msr/aperf/ or msr/mperf/. > > - Freq (MHz): The frequency during the sample interval. Needs cycles > ref-cycles event. > - CPU%: CPU utilization during the sample interval. Needs ref-cycles and > msr/tsc/ events. > - CORE_BUSY%: actual percent performance (APERF/MPERF%) during the > sample interval. Needs msr/aperf/ and msr/mperf/ events. > > Here is an example: > > $ perf record --perf-freq ~/tchain_edit > > $ perf report --stdio --perf-freq > > Overhead FREQ MHz CPU% CORE_BUSY% > Command Shared Object Symbol > ........................................ ......... ..... .......... > ........... ................ ...................... > > 99.54% 99.54% 99.53% 99.53% 99.53% 2301 96 99 > tchain_edit tchain_edit [.] f3 > 0.20% 0.20% 0.20% 0.20% 0.20% 2301 98 99 > tchain_edit tchain_edit [.] f2 > 0.05% 0.05% 0.05% 0.05% 0.05% 2300 98 99 > tchain_edit [kernel.vmlinux] [k] read_tsc > > Changes since V1: > - Save cpu max freq to header when recording > - Read cpu max freq and msr type from header when reporting > > Changes since V2: > - Introduce generic FEAT for CPU related data stored > - Make cpu max freq and msr type part of perf_session_env > - rename cpu_u to cpu_util > - Don't save sample value in perf_sample and discards new iterator. > Calculating the freq_perf_info in add_entry_cb callback > - Introduce symbol_conf.freq_perf_type for related hpp column visibility > > Changes since V3: > - add a identifier 'tag' for CPU attributes, max frequency. > - add backpointers to evlist for env, and evsel for evlist. > - Use bitmask for freq_perf_type > - Replace macros by functions to caculate freq, cpu_util and core_busy > - Move all caculation codes under symbol_conf.show_freq_perf condition. > > Changes since V4: > - Store cpu attributes id as tag and more readable cpu_attr > > Changes since V5: > - Rename freq to max_freq and use it > - Add a loop in process_cpu_attributes to facility future extension > > Changes since V6: > - Split rename perf_session_env and add backpointer to evlist patches > > Changes since V7: > - Introduce --freq-perf option for perf record > - Factor out fix for dump_sample > > Changes since V8: > - Rename --show-freq-perf to --freq-perf > - --freq-perf option imply --group > > Changes since V9: > - Rebase on commit d71b0ad8d309 > - Error handling for CPU attributes header write and process > - Rewrite the description for --perf-freq in perf record > - Add perf_freq_t in perf_sample to store frequency and performance > data. > - rename --freq-perf to --perf-freq > - The last patch is split into three patches (6/8 only show leader value in > hpp__fmt, > 7/8 HPP__SINGLE_PRINT_FNS support and 8/8 perf report --perf-freq > support) > > Kan Liang (8): > perf,tools: introduce generic FEAT for CPU attributes > perf,record: introduce --perf-freq option > perf,tools: caculate freq per sample > perf,tools: Dump per-sample freq/CPU%/CORE_BUSY% in report -D > perf,tools: caculate and save freq/CPU%/CORE_BUSY% in he_stat > perf,tools: only show leader's value in hpp__fmt > perf,tools: Introduce HPP__SINGLE_PRINT_FNS support > perf,tools: Show freq/CPU%/CORE_BUSY% in perf report by --perf-freq > > tools/perf/Documentation/perf-record.txt | 8 ++++ > tools/perf/Documentation/perf-report.txt | 12 ++++++ > tools/perf/builtin-record.c | 39 ++++++++++++++++++- > tools/perf/builtin-report.c | 41 ++++++++++++++++++++ > tools/perf/ui/hist.c | 66 +++++++++++++++++++++++++++++--- > tools/perf/util/env.h | 11 ++++++ > tools/perf/util/event.h | 13 +++++++ > tools/perf/util/header.c | 62 > ++++++++++++++++++++++++++++++ > tools/perf/util/header.h | 1 + > tools/perf/util/hist.h | 3 ++ > tools/perf/util/session.c | 44 +++++++++++++++++++-- > tools/perf/util/session.h | 52 +++++++++++++++++++++++++ > tools/perf/util/sort.c | 3 ++ > tools/perf/util/sort.h | 3 ++ > tools/perf/util/symbol.h | 12 +++++- > 15 files changed, 360 insertions(+), 10 deletions(-) > > -- > 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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