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Refactor ProcessorTime to SystemInfo

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This commit is contained in:
Tom Lally 2022-09-01 17:12:13 +01:00
parent 002acbd7a0
commit 4aaefeaefd
5 changed files with 5 additions and 5 deletions
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57
src/util/ProcessorTime/ProcessorTimeUnix.cpp
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@ -1,57 +0,0 @@
#if BOOST_OS_LINUX
#include "util/ProcessorTime/ProcessorTime.h"
#include <unistd.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/resource.h>
#include <string>
uint32_t GetProcessorCount()
{
return std::thread::hardware_concurrency();
}
uint64_t QueryRamUsage()
{
long page_size = sysconf(_SC_PAGESIZE);
std::ifstream file("/proc/self/statm");
file.ignore(std::numeric_limits<std::streamsize>::max(), ' ');
uint64_t no_pages;
file >> no_pages;
return no_pages * page_size;
}
void QueryProcTime(uint64_t &out_now, uint64_t &out_user, uint64_t &out_kernel)
{
struct tms time_info;
clock_t clock_now = times(&time_info);
clock_t clock_user = time_info.tms_utime;
clock_t clock_kernel = time_info.tms_utime;
out_now = static_cast<uint64_t>(clock_now);
out_user = static_cast<uint64_t>(clock_user);
out_kernel = static_cast<uint64_t>(clock_kernel);
}
void QueryCoreTimes(uint32_t count, ProcessorTime out[])
{
std::ifstream file("/proc/stat");
file.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
for (auto i = 0; i < count; ++i)
{
uint64_t user, nice, kernel, idle;
file.ignore(std::numeric_limits<std::streamsize>::max(), ' ');
file >> user >> nice >> kernel >> idle;
file.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
out[i].idle = idle;
out[i].kernel = kernel;
out[i].user = user + nice;
}
}
#endif