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authorAdrian Hunter <adrian.hunter@intel.com>2018-05-22 13:54:32 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-05-22 10:52:49 -0300
commit9cecca325ea879c84fcd31a5e609a514c1a1dbd1 (patch)
tree5c507d46f9d56279a95d308399d2a0f1b981e99e /tools/perf/util/machine.c
parent7ebaf4890f63eb90856b76864a0847413cdf6c86 (diff)
perf machine: Add nr_cpus_avail()
Add a function to return the number of the machine's available CPUs. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86@kernel.org Link: http://lkml.kernel.org/r/1526986485-6562-5-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/machine.c')
-rw-r--r--tools/perf/util/machine.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index e011a7160380..f62ecd9c36e8 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -2305,6 +2305,11 @@ bool machine__is(struct machine *machine, const char *arch)
return machine && !strcmp(perf_env__raw_arch(machine->env), arch);
}
+int machine__nr_cpus_avail(struct machine *machine)
+{
+ return machine ? perf_env__nr_cpus_avail(machine->env) : 0;
+}
+
int machine__get_kernel_start(struct machine *machine)
{
struct map *map = machine__kernel_map(machine);