mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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77 lines
2.8 KiB
77 lines
2.8 KiB
10 years ago
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/*
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*
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* Copyright 2015, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "test/cpp/qps/interarrival.h"
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#include <chrono>
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#include <iostream>
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// Use the C histogram rather than C++ to avoid depending on proto
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#include <grpc/support/histogram.h>
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#include <grpc++/config.h>
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using grpc::testing::RandomDist;
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using grpc::testing::InterarrivalTimer;
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void RunTest(RandomDist&& r, int threads, std::string title) {
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InterarrivalTimer timer;
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timer.init(r, threads);
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gpr_histogram *h(gpr_histogram_create(0.01, 60e9));
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for (int i = 0; i < 10000000; i++) {
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for (int j = 0; j < threads; j++) {
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gpr_histogram_add(h, timer(j).count());
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}
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}
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std::cout << title << " Distribution" << std::endl;
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std::cout << "Value, Percentile" << std::endl;
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for (double pct = 0.0; pct < 100.0; pct += 1.0) {
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std::cout << gpr_histogram_percentile(h, pct) << "," << pct << std::endl;
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}
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gpr_histogram_destroy(h);
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}
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using grpc::testing::ExpDist;
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using grpc::testing::DetDist;
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using grpc::testing::UniformDist;
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using grpc::testing::ParetoDist;
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int main(int argc, char **argv) {
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RunTest(ExpDist(10.0), 5, std::string("Exponential(10)"));
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RunTest(DetDist(5.0), 5, std::string("Det(5)"));
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RunTest(UniformDist(0.0, 10.0), 5, std::string("Uniform(1,10)"));
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RunTest(ParetoDist(1.0, 1.0), 5, std::string("Pareto(1,1)"));
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return 0;
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}
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