Move WebSocket masking benchmarks to net_perftests

net/websockets/websocket_frame_perftest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/websockets/websocket_frame.h"
+
+#include <algorithm>
+#include <vector>
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/test/perf_time_logger.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace net {
+
+namespace {
+
+const int kIterations = 100000;
+const int kLongPayloadSize = 1 << 16;
+const char kMaskingKey[] = "\xFE\xED\xBE\xEF";
+
+COMPILE_ASSERT(arraysize(kMaskingKey) ==
+                   WebSocketFrameHeader::kMaskingKeyLength + 1,
+               incorrect_masking_key_size);
+
+class WebSocketFrameTestMaskBenchmark : public ::testing::Test {
+ protected:
+  void Benchmark(const char* const name,
+                 const char* const payload,
+                 size_t size) {
+    std::vector<char> scratch(payload, payload + size);
+    WebSocketMaskingKey masking_key;
+    std::copy(kMaskingKey,
+              kMaskingKey + WebSocketFrameHeader::kMaskingKeyLength,
+              masking_key.key);
+    base::PerfTimeLogger timer(name);
+    for (int x = 0; x < kIterations; ++x) {
+      MaskWebSocketFramePayload(
+          masking_key, x % size, &scratch.front(), scratch.size());
+    }
+    timer.Done();
+  }
+};
+
+TEST_F(WebSocketFrameTestMaskBenchmark, BenchmarkMaskShortPayload) {
+  static const char kShortPayload[] = "Short Payload";
+  Benchmark(
+      "Frame_mask_short_payload", kShortPayload, arraysize(kShortPayload));
+}
+
+TEST_F(WebSocketFrameTestMaskBenchmark, BenchmarkMaskLongPayload) {
+  scoped_ptr<char[]> payload(new char[kLongPayloadSize]);

[yhirano, 2014/08/27 07:22:33]

How about using std::vector<char> payload(kLongPayloadSize, 'a') ?

[Adam Rice, 2014/08/27 07:39:41]

Done.

+  std::fill(payload.get(), payload.get() + kLongPayloadSize, 'a');
+  Benchmark("Frame_mask_long_payload", payload.get(), kLongPayloadSize);
+}
+
+}  // namespace
+
+}  // namespace net