kernel/linux.git/tools/perf/util/stat-shadow.c, branch v6.1.168

perf stat: Don't compare runtime stat for shadow stats

2022-10-06T11:03:53+00:00

Now it always uses the global rt_stat. Let's get rid of the field from the saved_value. When the both evsels are NULL, it'd return 0 so remove the block in the saved_value_cmp. Reviewed-by: James Clark Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Andi Kleen Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kan Liang Cc: Leo Yan Cc: Peter Zijlstra Cc: Xing Zhengjun Link: https://lore.kernel.org/r/20220930202110.845199-7-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf stat: Use thread map index for shadow stat

2022-10-06T11:03:53+00:00

When AGGR_THREAD is active, it aggregates the values for each thread. Previously it used cpu map index which is invalid for AGGR_THREAD so it had to use separate runtime stats with index 0. But it can just use the rt_stat with thread_map_index. Rename the first_shadow_map_idx() and make it return the thread index. Reviewed-by: James Clark Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Andi Kleen Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kan Liang Cc: Leo Yan Cc: Peter Zijlstra Cc: Xing Zhengjun Link: https://lore.kernel.org/r/20220930202110.845199-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf stat: Rename saved_value->cpu_map_idx

2022-10-06T11:03:53+00:00

The cpu_map_idx fields is just to differentiate values from other entries. It doesn't need to be strictly cpu map index. Actually we can pass thread map index or aggr map index. So rename the fields first. No functional change intended. Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Andi Kleen Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Kan Liang Cc: Leo Yan Cc: Peter Zijlstra Cc: Xing Zhengjun Link: https://lore.kernel.org/r/20220930202110.845199-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf metrics: Don't scale counts going into metrics

2022-10-06T11:03:52+00:00

Counts are scaled prior to going into saved_value, reverse the scaling so that metrics don't double scale values. Signed-off-by: Ian Rogers Cc: Ahmad Yasin Cc: Alexander Shishkin Cc: Andi Kleen Cc: Caleb Biggers Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kajol Jain Cc: Kan Liang Cc: Kshipra Bopardikar Cc: Mark Rutland Cc: Miaoqian Lin Cc: Namhyung Kim Cc: Perry Taylor Cc: Peter Zijlstra Cc: Samantha Alt Cc: Stephane Eranian Cc: Thomas Richter Cc: Xing Zhengjun Link: https://lore.kernel.org/r/20221004021612.325521-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf metrics: Wire up core_wide

2022-10-04T11:55:22+00:00

Pass state necessary for core_wide into the expression parser. Add system_wide and user_requested_cpu_list to perf_stat_config to make it available at display time. evlist isn't used as the evlist__create_maps, that computes user_requested_cpus, needs the list of events which is generated by the metric. Signed-off-by: Ian Rogers Cc: Ahmad Yasin Cc: Alexander Shishkin Cc: Andi Kleen Cc: Caleb Biggers Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kan Liang Cc: Kshipra Bopardikar Cc: Mark Rutland Cc: Miaoqian Lin Cc: Namhyung Kim Cc: Perry Taylor Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Richter Cc: Xing Zhengjun Link: https://lore.kernel.org/r/20220831174926.579643-7-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf expr: Move the scanner_ctx into the parse_ctx

2022-10-04T11:55:22+00:00

We currently maintain the two independently and copy from one to the other. This is a burden when additional scanner context values are necessary, so combine them. Signed-off-by: Ian Rogers Cc: Ahmad Yasin Cc: Alexander Shishkin Cc: Andi Kleen Cc: Caleb Biggers Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kan Liang Cc: Kshipra Bopardikar Cc: Mark Rutland Cc: Miaoqian Lin Cc: Namhyung Kim Cc: Perry Taylor Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Richter Cc: Xing Zhengjun Link: https://lore.kernel.org/r/20220831174926.579643-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf stat: Capitalize topdown metrics' names

2022-08-27T14:55:17+00:00

Capitalize topdown metrics' names to follow the intel SDM. Before: # ./perf stat -a sleep 1 Performance counter stats for 'system wide': 228,094.05 msec cpu-clock # 225.026 CPUs utilized 842 context-switches # 3.691 /sec 224 cpu-migrations # 0.982 /sec 70 page-faults # 0.307 /sec 23,164,105 cycles # 0.000 GHz 29,403,446 instructions # 1.27 insn per cycle 5,268,185 branches # 23.097 K/sec 33,239 branch-misses # 0.63% of all branches 136,248,990 slots # 597.337 K/sec 32,976,450 topdown-retiring # 24.2% retiring 4,651,918 topdown-bad-spec # 3.4% bad speculation 26,148,695 topdown-fe-bound # 19.2% frontend bound 72,515,776 topdown-be-bound # 53.2% backend bound 6,008,540 topdown-heavy-ops # 4.4% heavy operations # 19.8% light operations 3,934,049 topdown-br-mispredict # 2.9% branch mispredict # 0.5% machine clears 16,655,439 topdown-fetch-lat # 12.2% fetch latency # 7.0% fetch bandwidth 41,635,972 topdown-mem-bound # 30.5% memory bound # 22.7% Core bound 1.013634593 seconds time elapsed After: # ./perf stat -a sleep 1 Performance counter stats for 'system wide': 228,081.94 msec cpu-clock # 225.003 CPUs utilized 824 context-switches # 3.613 /sec 224 cpu-migrations # 0.982 /sec 67 page-faults # 0.294 /sec 22,647,423 cycles # 0.000 GHz 28,870,551 instructions # 1.27 insn per cycle 5,167,099 branches # 22.655 K/sec 32,383 branch-misses # 0.63% of all branches 133,411,074 slots # 584.926 K/sec 32,352,607 topdown-retiring # 24.3% Retiring 4,456,977 topdown-bad-spec # 3.3% Bad Speculation 25,626,487 topdown-fe-bound # 19.2% Frontend Bound 70,955,316 topdown-be-bound # 53.2% Backend Bound 5,834,844 topdown-heavy-ops # 4.4% Heavy Operations # 19.9% Light Operations 3,738,781 topdown-br-mispredict # 2.8% Branch Mispredict # 0.5% Machine Clears 16,286,803 topdown-fetch-lat # 12.2% Fetch Latency # 7.0% Fetch Bandwidth 40,802,069 topdown-mem-bound # 30.6% Memory Bound # 22.6% Core Bound 1.013683125 seconds time elapsed Reviewed-by: Kan Liang Signed-off-by: Xing Zhengjun Acked-by: Ian Rogers Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20220825015458.3252239-1-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf metrics: Support all tool events

2022-05-09T13:16:49+00:00

Previously duration_time was hard coded, which was ok until commit b03b89b350034f22 ("perf stat: Add user_time and system_time events") added additional tool events. Do for all tool events what was previously done just for duration_time. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Andi Kleen Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kim Phillips Cc: Madhavan Srinivasan Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Riccardo Mancini Cc: Shunsuke Nakamura Cc: Stephane Eranian Cc: Xing Zhengjun Link: https://lore.kernel.org/r/20220507053410.3798748-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf stat: Introduce stats for the user and system rusage times

2022-04-20T16:38:41+00:00

This is preparation for exporting rusage values as tool events. Add new global stats tracking the values obtained via rusage. For now only ru_utime and ru_stime are part of the tracked stats. Both are stored as nanoseconds to be consistent with 'duration_time', although the finest resolution the struct timeval data in rusage provides are microseconds. Signed-off-by: Florian Fischer Cc: Ian Rogers Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Xing Zhengjun Link: https://lore.kernel.org/r/20220420102354.468173-2-florian.fischer@muhq.space Signed-off-by: Arnaldo Carvalho de Melo

perf stat: Swap variable name cpu to index

2022-01-12T17:28:23+00:00

The use of CPU is error prone, switch to cpu_map_idx. Signed-off-by: Ian Rogers Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kajol Jain Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Mathieu Poirier Cc: Mike Leach Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Riccardo Mancini Cc: Stephane Eranian Cc: Suzuki Poulouse Cc: Vineet Singh Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: zhengjun.xing@intel.com Link: https://lore.kernel.org/r/20220105061351.120843-43-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo