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perf symbols: Add 'arch_cpu_idle' to the list of kernel idle symbols 

When testing 'perf top' on a armhf system (32-bit, Orange Pi Zero), I
noticed that 'arch_cpu_idle' dominated, add it to the list of idle
symbols, so that we can see what is that being done when not idle.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-4q2b5g4p2hrstrhp9t2mrlho@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
Arnaldo Carvalho de Melo 2019-01-09 16:19:24 -03:00
parent 498c203d85
commit 549aff770c
1 changed files with 1 additions and 0 deletions
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tools/perf/util/symbol.c
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@ -614,6 +614,7 @@ out:
static bool symbol__is_idle(const char *name)
{
const char * const idle_symbols[] = {
"arch_cpu_idle",
"cpu_idle",
"cpu_startup_entry",
"intel_idle",