ResultPerf.cpp

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Author : Jamie Madill
Date : 2018-05-29 15:21:41
Hash : 4fef7738
Message : Add perf test for Error/Result class. This is a performance test that stresses the Error class. It also is used in tests for the new Result class. Bug: angleproject:2575 Change-Id: Ie23c2a1ea74108d2ba72bf26f1db04e14f7eda64 Reviewed-on: https://chromium-review.googlesource.com/1077129 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

src/tests/perf_tests/ResultPerf.cpp

//
// Copyright 2018 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// ResultPerf:
//   Performance test for ANGLE's Error result class.
//

#include "ANGLEPerfTest.h"
#include "libANGLE/Error.h"

volatile int gThing = 0;

namespace
{
constexpr int kIterations = 1000;

class ResultPerfTest : public ANGLEPerfTest
{
  public:
    ResultPerfTest();
    void step() override;
};

ResultPerfTest::ResultPerfTest() : ANGLEPerfTest("ResultPerf", "_run")
{
}

ANGLE_NOINLINE gl::Error ExternalCall()
{
    if (gThing != 0)
    {
        printf("Something very slow");
        return gl::Error(GL_INVALID_OPERATION);
    }
    else
    {
        return gl::NoError();
    }
}

gl::Error CallReturningResult(int depth)
{
    ANGLE_TRY(ExternalCall());
    ANGLE_TRY(ExternalCall());
    ANGLE_TRY(ExternalCall());
    ANGLE_TRY(ExternalCall());
    ANGLE_TRY(ExternalCall());
    ANGLE_TRY(ExternalCall());
    ANGLE_TRY(ExternalCall());
    ANGLE_TRY(ExternalCall());
    ANGLE_TRY(ExternalCall());
    return ExternalCall();
}

void ResultPerfTest::step()
{
    for (int i = 0; i < kIterations; i++)
    {
        (void)CallReturningResult(0);
        (void)CallReturningResult(0);
        (void)CallReturningResult(0);
        (void)CallReturningResult(0);
        (void)CallReturningResult(0);
    }
}

TEST_F(ResultPerfTest, Run)
{
    run();
}
}  // anonymous namespace

kc3-lang/angle/src/tests/perf_tests/ResultPerf.cpp

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kc3-lang/angle /src/tests/perf_tests/ResultPerf.cpp