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See cairo mailing list 15-10-2007 patch by Soeren Sandmann.
Fixes unreliable results for cairo-perf.
diff --git a/perf/cairo-perf.c b/perf/cairo-perf.c
index 360f2dd..a8d7abc 100644
--- a/perf/cairo-perf.c
+++ b/perf/cairo-perf.c
@@ -166,22 +166,11 @@ cairo_perf_run (cairo_perf_t *perf,
cairo_perf_ticks_per_second () / 1000.0);
printf (" %lld", times[i]);
} else {
- if (i > 0) {
- _cairo_stats_compute (&stats, times, i+1);
-
- if (stats.std_dev <= CAIRO_PERF_LOW_STD_DEV &&
- ! perf->exact_iterations)
- {
- low_std_dev_count++;
- if (low_std_dev_count >= CAIRO_PERF_STABLE_STD_DEV_COUNT)
- break;
- } else {
- low_std_dev_count = 0;
- }
- }
}
}
+ _cairo_stats_compute (&stats, times, i+1);
+
if (perf->raw) {
printf ("\n");
} else {
diff --git a/perf/cairo-stats.c b/perf/cairo-stats.c
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