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OsPerfState saves for all CPUs

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This commit is contained in:
Carl Pearson
2019-09-26 10:58:01 -05:00
parent d576ac099d
commit 1b3cf604a8
4 changed files with 62 additions and 32 deletions
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23
examples/os_perf.cpp
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@@ -5,23 +5,20 @@
int main(void) {
perfect::init();
std::map<int, perfect::OsPerfState> states;
// os performance state for each cpu
perfect::OsPerfState state;
// store the current state
PERFECT(perfect::get_os_perf_state(state));
// max state for each cpu
for (auto cpu : perfect::cpus()) {
perfect::OsPerfState state;
perfect::Result result;
result = perfect::get_os_perf_state(&state, cpu);
if (perfect::Result::SUCCESS == result) {
states[cpu] = state;
}
perfect::os_perf_state_maximum(cpu);
PERFECT(perfect::os_perf_state_maximum(cpu));
}
// do things with all CPUs set to the maximum performancem mode by the OS
for (auto kv : states) {
int cpu = kv.first;
perfect::OsPerfState state = kv.second;
perfect::set_os_perf_state(cpu, state);
}
// restore original state
PERFECT(perfect::set_os_perf_state(state));
}