mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
111 lines
3.4 KiB
111 lines
3.4 KiB
/* |
|
* |
|
* Copyright 2015, Google Inc. |
|
* All rights reserved. |
|
* |
|
* Redistribution and use in source and binary forms, with or without |
|
* modification, are permitted provided that the following conditions are |
|
* met: |
|
* |
|
* * Redistributions of source code must retain the above copyright |
|
* notice, this list of conditions and the following disclaimer. |
|
* * Redistributions in binary form must reproduce the above |
|
* copyright notice, this list of conditions and the following disclaimer |
|
* in the documentation and/or other materials provided with the |
|
* distribution. |
|
* * Neither the name of Google Inc. nor the names of its |
|
* contributors may be used to endorse or promote products derived from |
|
* this software without specific prior written permission. |
|
* |
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
* |
|
*/ |
|
|
|
#include "test/cpp/qps/usage_timer.h" |
|
|
|
#include <fstream> |
|
#include <sstream> |
|
#include <string> |
|
|
|
#include <grpc/support/log.h> |
|
#include <grpc/support/time.h> |
|
#ifdef __linux__ |
|
#include <sys/resource.h> |
|
#include <sys/time.h> |
|
|
|
static double time_double(struct timeval* tv) { |
|
return tv->tv_sec + 1e-6 * tv->tv_usec; |
|
} |
|
#endif |
|
|
|
UsageTimer::UsageTimer() : start_(Sample()) {} |
|
|
|
double UsageTimer::Now() { |
|
auto ts = gpr_now(GPR_CLOCK_REALTIME); |
|
return ts.tv_sec + 1e-9 * ts.tv_nsec; |
|
} |
|
|
|
static void get_resource_usage(double* utime, double* stime) { |
|
#ifdef __linux__ |
|
struct rusage usage; |
|
getrusage(RUSAGE_SELF, &usage); |
|
*utime = time_double(&usage.ru_utime); |
|
*stime = time_double(&usage.ru_stime); |
|
#else |
|
*utime = 0; |
|
*stime = 0; |
|
#endif |
|
} |
|
|
|
static void get_cpu_usage(unsigned long long* total_cpu_time, |
|
unsigned long long* idle_cpu_time) { |
|
#ifdef __linux__ |
|
std::ifstream proc_stat("/proc/stat"); |
|
proc_stat.ignore(5); |
|
std::string cpu_time_str; |
|
std::string first_line; |
|
std::getline(proc_stat, first_line); |
|
std::stringstream first_line_s(first_line); |
|
for (int i = 0; i < 10; ++i) { |
|
std::getline(first_line_s, cpu_time_str, ' '); |
|
*total_cpu_time += std::stol(cpu_time_str); |
|
if (i == 3) { |
|
*idle_cpu_time = std::stol(cpu_time_str); |
|
} |
|
} |
|
#else |
|
gpr_log(GPR_INFO, "get_cpu_usage(): Non-linux platform is not supported."); |
|
#endif |
|
} |
|
|
|
UsageTimer::Result UsageTimer::Sample() { |
|
Result r; |
|
r.wall = Now(); |
|
get_resource_usage(&r.user, &r.system); |
|
r.total_cpu_time = 0; |
|
r.idle_cpu_time = 0; |
|
get_cpu_usage(&r.total_cpu_time, &r.idle_cpu_time); |
|
return r; |
|
} |
|
|
|
UsageTimer::Result UsageTimer::Mark() const { |
|
Result s = Sample(); |
|
Result r; |
|
r.wall = s.wall - start_.wall; |
|
r.user = s.user - start_.user; |
|
r.system = s.system - start_.system; |
|
r.total_cpu_time = s.total_cpu_time - start_.total_cpu_time; |
|
r.idle_cpu_time = s.idle_cpu_time - start_.idle_cpu_time; |
|
|
|
return r; |
|
}
|
|
|