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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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71 lines
2.3 KiB
71 lines
2.3 KiB
/* |
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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/timer.h" |
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#include <sys/time.h> |
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#include <sys/resource.h> |
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#include <grpc/support/time.h> |
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Timer::Timer() : start_(Sample()) {} |
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double Timer::Now() { |
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auto ts = gpr_now(GPR_CLOCK_REALTIME); |
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return ts.tv_sec + 1e-9 * ts.tv_nsec; |
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} |
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static double time_double(struct timeval* tv) { |
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return tv->tv_sec + 1e-6 * tv->tv_usec; |
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} |
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Timer::Result Timer::Sample() { |
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struct rusage usage; |
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struct timeval tv; |
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gettimeofday(&tv, NULL); |
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getrusage(RUSAGE_SELF, &usage); |
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Result r; |
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r.wall = time_double(&tv); |
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r.user = time_double(&usage.ru_utime); |
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r.system = time_double(&usage.ru_stime); |
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return r; |
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} |
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Timer::Result Timer::Mark() const { |
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Result s = Sample(); |
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Result r; |
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r.wall = s.wall - start_.wall; |
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r.user = s.user - start_.user; |
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r.system = s.system - start_.system; |
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return r; |
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}
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