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>
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@ -416,6 +416,8 @@ static void print_interval(void)
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list_for_each_entry(counter, &evsel_list->entries, node)
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print_counter_aggr(counter, prefix);
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}
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fflush(output);
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}
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static void handle_initial_delay(void)
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