diff options
| author |   Andi Kleen <ak@linux.intel.com> | 2013-08-02 17:41:12 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-08-07 17:35:29 -0300 |
| commit | 2bbf03f16a634f675c49c473b2b6528571990aea (patch) | |
| tree | ed2519b8cb4cf3afd82c55102552c6d3cf590792 /tools | |
| parent | perf stat: Add support for --initial-delay option (diff) | |
| download | linux-dev-2bbf03f16a634f675c49c473b2b6528571990aea.tar.xz linux-dev-2bbf03f16a634f675c49c473b2b6528571990aea.zip | |
perf stat: Flush output after each line in interval mode
When interval mode is outputting to a pipe, each measurement should be
flushed individually, so that the reader sees it timely.
With a terminal each line is automatically flushed by stdio, but that is
disabled with non terminal output.
Simply fflush output after each time interval
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1375490473-1503-5-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-stat.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 2e637e4c951d..f686d5ff594e 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -416,6 +416,8 @@ static void print_interval(void) list_for_each_entry(counter, &evsel_list->entries, node) print_counter_aggr(counter, prefix); } + + fflush(output); } static void handle_initial_delay(void) |