johnmccutchan@google.com
919dc2d6eb
* Threads can only register and unregister themselves with ThreadInterrupter. * Profiler is no longer involved in interrupting threads. It's just a callback and the buffer. * Profiler operates lock free using an atomic operation to reserve sample in sample buffer. * Linux, Mac, and Windows done. R=asiva@google.com Review URL: https://codereview.chromium.org//109803002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@31170 260f80e4-7a28-3924-810f-c04153c831b5
92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/assert.h"
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#include "vm/dart_api_impl.h"
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#include "vm/dart_api_state.h"
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#include "vm/globals.h"
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#include "vm/profiler.h"
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#include "vm/unit_test.h"
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namespace dart {
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class ProfileSampleBufferTestHelper {
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public:
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static intptr_t IterateCount(const Isolate* isolate,
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const SampleBuffer& sample_buffer) {
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intptr_t c = 0;
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for (intptr_t i = 0; i < sample_buffer.capacity(); i++) {
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Sample* sample = sample_buffer.GetSample(i);
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if (sample->isolate != isolate) {
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continue;
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}
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c++;
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}
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return c;
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}
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static intptr_t IterateSumPC(const Isolate* isolate,
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const SampleBuffer& sample_buffer) {
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intptr_t c = 0;
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for (intptr_t i = 0; i < sample_buffer.capacity(); i++) {
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Sample* sample = sample_buffer.GetSample(i);
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if (sample->isolate != isolate) {
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continue;
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}
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c += sample->pcs[0];
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}
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return c;
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}
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};
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TEST_CASE(ProfilerSampleBufferWrapTest) {
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SampleBuffer* sample_buffer = new SampleBuffer(3);
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Isolate* i = reinterpret_cast<Isolate*>(0x1);
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EXPECT_EQ(0, ProfileSampleBufferTestHelper::IterateSumPC(i, *sample_buffer));
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Sample* s;
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s = sample_buffer->ReserveSample();
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s->isolate = i;
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s->pcs[0] = 2;
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EXPECT_EQ(2, ProfileSampleBufferTestHelper::IterateSumPC(i, *sample_buffer));
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s = sample_buffer->ReserveSample();
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s->isolate = i;
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s->pcs[0] = 4;
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EXPECT_EQ(6, ProfileSampleBufferTestHelper::IterateSumPC(i, *sample_buffer));
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s = sample_buffer->ReserveSample();
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s->isolate = i;
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s->pcs[0] = 6;
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EXPECT_EQ(12, ProfileSampleBufferTestHelper::IterateSumPC(i, *sample_buffer));
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s = sample_buffer->ReserveSample();
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s->isolate = i;
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s->pcs[0] = 8;
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EXPECT_EQ(18, ProfileSampleBufferTestHelper::IterateSumPC(i, *sample_buffer));
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delete sample_buffer;
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}
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TEST_CASE(ProfilerSampleBufferIterateTest) {
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SampleBuffer* sample_buffer = new SampleBuffer(3);
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Isolate* i = reinterpret_cast<Isolate*>(0x1);
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EXPECT_EQ(0, ProfileSampleBufferTestHelper::IterateCount(i, *sample_buffer));
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Sample* s;
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s = sample_buffer->ReserveSample();
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s->isolate = i;
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EXPECT_EQ(1, ProfileSampleBufferTestHelper::IterateCount(i, *sample_buffer));
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s = sample_buffer->ReserveSample();
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s->isolate = i;
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EXPECT_EQ(2, ProfileSampleBufferTestHelper::IterateCount(i, *sample_buffer));
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s = sample_buffer->ReserveSample();
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s->isolate = i;
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EXPECT_EQ(3, ProfileSampleBufferTestHelper::IterateCount(i, *sample_buffer));
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s = sample_buffer->ReserveSample();
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s->isolate = i;
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EXPECT_EQ(3, ProfileSampleBufferTestHelper::IterateCount(i, *sample_buffer));
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delete sample_buffer;
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}
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} // namespace dart
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