github-repos/benchmark
1
0
Fork 0
mirror of https://github.com/google/benchmark.git synced 2025-02-06 17:20:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

set cpuinfo_num_cpus on Windows (#254)

Browse Source
This commit is contained in:
Sven 2016-07-13 22:00:32 +02:00 committed by Dominic Hamon
parent b805b7c6e0
commit ebd37b191c
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/sysinfo.cc
View File

@ -239,6 +239,7 @@ void InitializeSystemInfo() {
}
// TODO: also figure out cpuinfo_num_cpus
#elif defined BENCHMARK_OS_WINDOWS
// In NT, read MHz from the registry. If we fail to do so or we're in win9x
// then make a crude estimate.
@ -251,7 +252,10 @@ void InitializeSystemInfo() {
cpuinfo_cycles_per_second = static_cast<double>((int64_t)data * (int64_t)(1000 * 1000)); // was mhz
else
cpuinfo_cycles_per_second = static_cast<double>(EstimateCyclesPerSecond());
// TODO: also figure out cpuinfo_num_cpus
SYSTEM_INFO sysinfo = { 0 };
GetSystemInfo(&sysinfo);
cpuinfo_num_cpus = sysinfo.dwNumberOfProcessors; // number of logical processors in the current group
#elif defined BENCHMARK_OS_MACOSX
// returning "mach time units" per second. the current number of elapsed