From: Jin Yao <yao.jin@linux.intel.com>
To: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org,
mingo@redhat.com, alexander.shishkin@linux.intel.com
Cc: Linux-kernel@vger.kernel.org, ak@linux.intel.com,
kan.liang@intel.com, yao.jin@intel.com,
Jin Yao <yao.jin@linux.intel.com>
Subject: [PATCH v3 0/3] perf tool: Enable cpu list for hybrid
Date: Mon, 12 Jul 2021 15:12:32 +0800 [thread overview]
Message-ID: <20210712071235.28533-1-yao.jin@linux.intel.com> (raw)
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.
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 | 65 ++++++++++++++++++++++++++++
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, 127 insertions(+), 1 deletion(-)
--
2.17.1
next reply other threads:[~2021-07-12 7:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-12 7:12 Jin Yao [this message]
2021-07-12 7:12 ` [PATCH v3 1/3] libperf: Add perf_cpu_map__default_new() Jin Yao
2021-07-12 7:12 ` [PATCH v3 2/3] perf tools: Create hybrid flag in target Jin Yao
2021-07-12 7:12 ` [PATCH v3 3/3] perf tools: Enable on a list of CPUs for hybrid Jin Yao
2021-07-19 19:36 ` Jiri Olsa
2021-07-20 7:07 ` Jin, Yao
2021-07-20 9:16 ` Jiri Olsa
2021-07-21 4:30 ` Jin, Yao
2021-07-22 10:19 ` Jiri Olsa
2021-07-23 0:49 ` Jin, Yao
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