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| author | Adrian Hunter <adrian.hunter@intel.com> | 2014-07-22 16:17:24 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-07-23 11:27:50 -0300 |
| commit | bf49c35f630452d85c9cd7205a72df841e8d99b9 (patch) | |
| tree | 153725b85fd48a817ceb5ba2f93ac7c30c90a0a3 /tools/perf | |
| parent | 1f625b0b3dd641b74ba21640a1fea19a3dd893a2 (diff) | |
| download | linux-bf49c35f630452d85c9cd7205a72df841e8d99b9.tar.bz2 | |
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 <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406035081-14301-16-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/thread.c | 1 | ||||
| -rw-r--r-- | tools/perf/util/thread.h | 1 |
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 */ |