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Date: Tue, 10 Aug 2021 08:36:42 +0800 From: "Jin, Yao" <yao.jin@...ux.intel.com> To: acme@...nel.org, jolsa@...nel.org, peterz@...radead.org, mingo@...hat.com, alexander.shishkin@...ux.intel.com Cc: Linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org, ak@...ux.intel.com, kan.liang@...el.com, yao.jin@...el.com Subject: Re: [PATCH v4 0/3] perf tool: Enable cpu list for hybrid Hi Jiri, Any comments for v4 series? Thanks Jin Yao On 7/23/2021 2:34 PM, Jin Yao wrote: > The perf-record and perf-stat have supported the option '-C/--cpus' > to count or collect only on the list of CPUs provided. This option > needs to be supported for hybrid as well. > > v4: > --- > Rename evlist__use_cpu_list to evlist__fix_hybrid_cpus > Add comments to evlist__fix_hybrid_cpus. > > v3: > --- > Rebase to latest perf/core branch. > > v2: > --- > Automatically map to hybrid pmu. > > For example, > > If cpu0-7 are 'cpu_core' and cpu9-11 are 'cpu_atom', > > # perf stat -e cycles -C0,11 -- sleep 1 > WARNING: use 0 in 'cpu_core' for 'cycles', skip other cpus in list. > WARNING: use 11 in 'cpu_atom' for 'cycles', skip other cpus in list. > > Performance counter stats for 'CPU(s) 0,11': > > 1,914,704 cpu_core/cycles/ > 2,036,983 cpu_atom/cycles/ > > 1.005815641 seconds time elapsed > > It automatically selects cpu0 for cpu_core/cycles/, selects cpu11 for > cpu_atom/cycles/, also with some warnings output. > > Jin Yao (3): > libperf: Add perf_cpu_map__default_new() > perf tools: Create hybrid flag in target > perf tools: Enable on a list of CPUs for hybrid > > tools/lib/perf/cpumap.c | 5 ++ > tools/lib/perf/include/perf/cpumap.h | 1 + > tools/perf/builtin-record.c | 7 +++ > tools/perf/builtin-stat.c | 6 +++ > tools/perf/util/evlist-hybrid.c | 73 ++++++++++++++++++++++++++++ > tools/perf/util/evlist-hybrid.h | 1 + > tools/perf/util/evlist.c | 3 +- > tools/perf/util/pmu.c | 35 +++++++++++++ > tools/perf/util/pmu.h | 4 ++ > tools/perf/util/target.h | 1 + > 10 files changed, 135 insertions(+), 1 deletion(-) >
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