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| author |   Frederic Weisbecker <fweisbec@gmail.com> | 2013-09-11 16:56:44 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-11-04 12:13:53 -0300 |
| commit | 1902efe7f626fdebe1520f5ff11f1309ec506708 (patch) | |
| tree | dbdc3c6f80aece6dfb35e2eaee6eb96a0ead5e4b /tools/perf/util/thread.h | |
| parent | perf tools: Add time argument on COMM setting (diff) | |
| download | linux-dev-1902efe7f626fdebe1520f5ff11f1309ec506708.tar.xz linux-dev-1902efe7f626fdebe1520f5ff11f1309ec506708.zip | |
perf tools: Add new COMM infrastructure
This new COMM infrastructure provides two features:
1) It keeps track of all comms lifecycle for a given thread. This way we
can associate a timeframe to any thread COMM, as long as
PERF_SAMPLE_TIME samples are joined to COMM and fork events.
As a result we should have more precise COMM sorted hists with seperated
entries for pre and post exec time after a fork.
2) It also makes sure that a given COMM string is not duplicated but
rather shared among the threads that refer to it. This way the threads
COMM can be compared against pointer values from the sort
infrastructure.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-hwjf70b2wve9m2kosxiq8bb3@git.kernel.org
[ Rename some accessor functions ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
[ Use __ as separator for class__method for private comm_str methods ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/thread.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h index 4e9724270a64..8702c6b4163a 100644 --- a/tools/perf/util/thread.h +++ b/tools/perf/util/thread.h @@ -2,6 +2,7 @@ #define __PERF_THREAD_H #include <linux/rbtree.h> +#include <linux/list.h> #include <unistd.h> #include <sys/types.h> #include "symbol.h" @@ -18,7 +19,7 @@ struct thread { char shortname[3]; bool comm_set; bool dead; /* if set thread has exited */ - char *comm; + struct list_head comm_list; int comm_len; void *priv; |