From: Kim Phillips <kim.phillips@amd.com>
To: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Kim Phillips <kim.phillips@amd.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Cong Wang <xiyou.wangcong@gmail.com>,
Andi Kleen <ak@linux.intel.com>,
Jin Yao <yao.jin@linux.intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
Song Liu <songliubraving@fb.com>,
Davidlohr Bueso <dave@stgolabs.net>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
Jiri Olsa <jolsa@redhat.com>
Subject: [PATCH 2/3 v2] perf symbols: Update the list of kernel idle symbols
Date: Fri, 7 Feb 2020 17:06:12 -0600 [thread overview]
Message-ID: <20200207230613.26709-2-kim.phillips@amd.com> (raw)
In-Reply-To: <20200207230613.26709-1-kim.phillips@amd.com>
"acpi_idle_do_entry", "acpi_processor_ffh_cstate_enter", and "idle_cpu"
appear in 'perf top' output, at least on AMD systems.
Add them to perf's idle_symbols list, so they don't dominate 'perf top'
output.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: linux-perf-users@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
---
v2: Added Jiri Olsa's acked-by:
https://lore.kernel.org/lkml/20200120092844.GC608405@krava/
tools/perf/util/symbol.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 3b379b1296f1..f3120c4f47ad 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -635,9 +635,12 @@ int modules__parse(const char *filename, void *arg,
static bool symbol__is_idle(const char *name)
{
const char * const idle_symbols[] = {
+ "acpi_idle_do_entry",
+ "acpi_processor_ffh_cstate_enter",
"arch_cpu_idle",
"cpu_idle",
"cpu_startup_entry",
+ "idle_cpu",
"intel_idle",
"default_idle",
"native_safe_halt",
--
2.25.0
next prev parent reply other threads:[~2020-02-07 23:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-07 23:06 [PATCH 1/3 v2] perf stat: don't report a null stalled cycles per insn metric Kim Phillips
2020-02-07 23:06 ` Kim Phillips [this message]
2020-02-10 18:52 ` [PATCH 2/3 v2] perf symbols: Update the list of kernel idle symbols Song Liu
2020-02-15 8:41 ` [tip: perf/urgent] " tip-bot2 for Kim Phillips
2020-02-10 16:31 ` [PATCH 3/3 v2] perf symbols: convert symbol__is_idle to use strlist Kim Phillips
2020-02-10 18:51 ` Song Liu
2020-02-10 19:32 ` Arnaldo Carvalho de Melo
2020-02-15 8:41 ` [tip: perf/urgent] perf symbols: Convert symbol__is_idle() " tip-bot2 for Kim Phillips
2020-02-10 18:53 ` [PATCH 1/3 v2] perf stat: don't report a null stalled cycles per insn metric Song Liu
2020-02-15 8:41 ` [tip: perf/urgent] perf stat: Don't " tip-bot2 for Kim Phillips
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