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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-05-08 18:52:24 +0200
committerIngo Molnar <mingo@elte.hu>2009-05-08 20:36:59 +0200
commitf370e1e2f195ec1e6420e26fc83e0319595db578 (patch)
tree08276ee556bbc91d4d5f3ccee05d930efbca77ef /include/linux
parenta85f61abe11a46553c4562e74edb27ebc782aeb7 (diff)
perf_counter: add PERF_RECORD_CPU
Allow recording the CPU number the event was generated on. RFC: this leaves a u32 as reserved, should we fill in the node_id() there, or leave this open for future extention, as userspace can already easily do the cpu->node mapping if needed. [ Impact: extend perfcounter output record format ] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090508170029.008627711@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/perf_counter.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 0e6303d36c6..614f921d616 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -105,6 +105,7 @@ enum perf_counter_record_format {
PERF_RECORD_GROUP = 1U << 4,
PERF_RECORD_CALLCHAIN = 1U << 5,
PERF_RECORD_CONFIG = 1U << 6,
+ PERF_RECORD_CPU = 1U << 7,
};
/*
@@ -260,6 +261,7 @@ enum perf_event_type {
* { u64 time; } && PERF_RECORD_TIME
* { u64 addr; } && PERF_RECORD_ADDR
* { u64 config; } && PERF_RECORD_CONFIG
+ * { u32 cpu, res; } && PERF_RECORD_CPU
*
* { u64 nr;
* { u64 event, val; } cnt[nr]; } && PERF_RECORD_GROUP