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authorAdrian Hunter <[email protected]>2014-07-22 16:17:24 +0300
committerArnaldo Carvalho de Melo <[email protected]>2014-07-23 11:27:50 -0300
commitbf49c35f630452d85c9cd7205a72df841e8d99b9 (patch)
tree153725b85fd48a817ceb5ba2f93ac7c30c90a0a3
parent1f625b0b3dd641b74ba21640a1fea19a3dd893a2 (diff)
perf tools: Add cpu to struct thread
Tools may wish to track on which cpu a thread is running. Add 'cpu' to struct thread for that purpose. This will be used to determine the cpu when decoding a per-thread Instruction Trace. E.g: Intel PT decoding uses sched_switch events to determine which task is running on which cpu. The Intel PT data comes straight from the hardware which doesn't know about linux threads. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
-rw-r--r--tools/perf/util/thread.c1
-rw-r--r--tools/perf/util/thread.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 9692c06a9e21..12c7a253a63c 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -34,6 +34,7 @@ struct thread *thread__new(pid_t pid, pid_t tid)
thread->pid_ = pid;
thread->tid = tid;
thread->ppid = -1;
+ thread->cpu = -1;
INIT_LIST_HEAD(&thread->comm_list);
comm_str = malloc(32);
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 3c0c2724f82c..716b7723cce2 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -17,6 +17,7 @@ struct thread {
pid_t pid_; /* Not all tools update this */
pid_t tid;
pid_t ppid;
+ int cpu;
char shortname[3];
bool comm_set;
bool dead; /* if set thread has exited */