Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 07/66] libtraceevent: Round up in tep_print_event() time precision | Date | Wed, 25 Sep 2019 21:31:45 -0300 |
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From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
When testing the output of the old trace-cmd compared to the one that uses the updated tep_print_event() logic, it was different in that the time stamp precision in the old format would round up to the nearest precision, where as the new logic truncates. Bring back the old method of rounding up.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: linux trace devel <linux-trace-devel@vger.kernel.org> Link: http://lore.kernel.org/lkml/20190919165119.5efa5de6@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/lib/traceevent/event-parse.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 6f842af4550b..d948475585ce 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -5527,8 +5527,10 @@ static void print_event_time(struct tep_handle *tep, struct trace_seq *s, if (divstr && isdigit(*(divstr + 1))) div = atoi(divstr + 1); time = record->ts; - if (div) + if (div) { + time += div / 2; time /= div; + } pr = prec; while (pr--) p10 *= 10; -- 2.21.0
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