From cee3ab9caa7ae5ee81027e60c0109063664d9217 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Fri, 11 Jul 2014 14:49:54 +0200 Subject: 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 Acked-by: David Ahern Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jean Pihet Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-7p3mnnopjvsp9nmk9msqcfkm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'tools/perf/util/session.c') 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; } -- cgit v1.2.3-55-g7522