diff options
| author | Andi Kleen <ak@linux.intel.com> | 2016-09-15 15:24:46 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-03 21:35:46 -0300 |
| commit | fc06e2a5aad9fcf7efaabd7550ac31f648d2f2bc (patch) | |
| tree | d7f58db003523fa4859e37e60aa8f61c5036992d | |
| parent | 1c5f01fe8660fc48625a94a5ed10e4dbaea95d5f (diff) | |
| download | linux-fc06e2a5aad9fcf7efaabd7550ac31f648d2f2bc.tar.bz2 | |
perf pmu: Add override support for event list CPUID
Add a PERF_CPUID variable to override the CPUID of the current CPU
(within the current architecture). This is useful for testing, so that
all event lists can be tested on a single system.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/1473978296-20712-10-git-send-email-sukadev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/pmu.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 9dc3506d23fc..79242cf9bb79 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -501,10 +501,16 @@ static void pmu_add_cpu_aliases(struct list_head *head) struct pmu_event *pe; char *cpuid; - cpuid = get_cpuid_str(); + cpuid = getenv("PERF_CPUID"); + if (cpuid) + cpuid = strdup(cpuid); + if (!cpuid) + cpuid = get_cpuid_str(); if (!cpuid) return; + pr_debug("Using CPUID %s\n", cpuid); + i = 0; while (1) { map = &pmu_events_map[i++]; |