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| author |   David Ahern <dsahern@gmail.com> | 2013-09-28 13:13:00 -0600 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-10-11 12:17:48 -0300 |
| commit | 8fb598e5a3b0ac213012e8461a309843ba0f2e74 (patch) | |
| tree | 811fa5a103e64f77ebde67a9c5e125726831ba4e /tools/perf/util/machine.h | |
| parent | perf stat: Add units to nanosec-based counters (diff) | |
| download | linux-dev-8fb598e5a3b0ac213012e8461a309843ba0f2e74.tar.xz linux-dev-8fb598e5a3b0ac213012e8461a309843ba0f2e74.zip | |
perf trace: Fix comm resolution when reading events from file
Task comm's are getting lost when processing events from a file. The
problem is that the trace struct used by the live processing has its
host machine and the perf-session used for file based processing has its
host machine. Fix by having both references point to the same machine.
Before:
0.030 ( 0.001 ms): :27743/27743 brk( ...
0.057 ( 0.004 ms): :27743/27743 mmap(len: 4096, prot: READ|WRITE, flags: ...
0.075 ( 0.006 ms): :27743/27743 access(filename: 0x7f3809fbce00, mode: R ...
0.091 ( 0.005 ms): :27743/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ...
...
After:
0.030 ( 0.001 ms): make/27743 brk( ...
0.057 ( 0.004 ms): make/27743 mmap(len: 4096, prot: READ|WRITE, flags: ...
0.075 ( 0.006 ms): make/27743 access(filename: 0x7f3809fbce00, mode: R ...
0.091 ( 0.005 ms): make/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ...
...
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380395584-9025-4-git-send-email-dsahern@gmail.com
[ Moved creation of new host machine to a separate constructor: machine__new_host() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/machine.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index 58a6be1fc739..5150d5e1db67 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -74,6 +74,7 @@ char *machine__mmap_name(struct machine *machine, char *bf, size_t size); void machines__set_symbol_filter(struct machines *machines, symbol_filter_t symbol_filter); +struct machine *machine__new_host(void); int machine__init(struct machine *machine, const char *root_dir, pid_t pid); void machine__exit(struct machine *machine); void machine__delete_dead_threads(struct machine *machine); |