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| author | Jiri Olsa <jolsa@kernel.org> | 2014-07-11 14:49:54 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-08-12 12:03:01 -0300 |
| commit | cee3ab9caa7ae5ee81027e60c0109063664d9217 (patch) | |
| tree | e80609d146065911272a056c6dc126cbc7dd6a13 /tools/perf/util/session.c | |
| parent | 94786b67b5f4577c16486e8eb10ff045e59f80ef (diff) | |
| download | lwn-cee3ab9caa7ae5ee81027e60c0109063664d9217.tar.gz lwn-cee3ab9caa7ae5ee81027e60c0109063664d9217.zip | |
perf tools: Add debug prints for ordered events queue
Adding some prints for ordered events queue, to help debug issues.
Adding debug_ordered_events debug variable to be able to enable ordered
events debug messages using:
$ perf --debug ordered-events=2 report ...
Also using oe pointer in perf_session__queue_event instead of chained
session variable dereferencing.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-7p3mnnopjvsp9nmk9msqcfkm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/session.c')
| -rw-r--r-- | tools/perf/util/session.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 7d8dbf213d64..462be2749462 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -499,8 +499,10 @@ int perf_session_queue_event(struct perf_session *s, union perf_event *event, if (!timestamp || timestamp == ~0ULL) return -ETIME; - if (timestamp < s->ordered_events.last_flush) { + if (timestamp < oe->last_flush) { printf("Warning: Timestamp below last timeslice flush\n"); + pr_oe_time(timestamp, "out of order event"); + pr_oe_time(oe->last_flush, "last flush"); return -EINVAL; } |