From: Andi Kleen <a...@linux.intel.com>
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 <a...@linux.intel.com>
---
tools/perf/builtin-stat.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 2e637e4..f686d5f 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)
--
1.8.3.1
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