Add samplingTime mode to nanobench
Adds a nanobench mode that takes samples for a fixed amount of time,
rather than taking a fixed amount of samples.
BUG=skia:
Review URL: https://codereview.chromium.org/1204153002
diff --git a/tools/Stats.h b/tools/Stats.h
index 8487a94..12c1d35 100644
--- a/tools/Stats.h
+++ b/tools/Stats.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
#ifndef Stats_DEFINED
#define Stats_DEFINED
@@ -11,7 +18,13 @@
#endif
struct Stats {
- Stats(const double samples[], int n) {
+ Stats(const SkTArray<double>& samples) {
+ int n = samples.count();
+ if (!n) {
+ min = max = mean = var = median = 0;
+ return;
+ }
+
min = samples[0];
max = samples[0];
for (int i = 0; i < n; i++) {
@@ -32,7 +45,7 @@
var = err / (n-1);
SkAutoTMalloc<double> sorted(n);
- memcpy(sorted.get(), samples, n * sizeof(double));
+ memcpy(sorted.get(), samples.begin(), n * sizeof(double));
SkTQSort(sorted.get(), sorted.get() + n - 1);
median = sorted[n/2];