An timer that timming by scope, a copycat of llvm::Timer.
Simply declare a local varibale of KT::Timer, it would print out the timming result in it's scope when running destructor:
void HeavyWork() {
for (int i = 0; i < 999999; i++) {
__unused int j = rand() % i;
}
}
int main(int argc, const char * argv[]) {
KT::Timer MainTimer("Main", "timming cost in main function scope");
{
KT::Timer HeavyWorkTimer("Heavywork", "timming cost in closest scope");
HeavyWork();
}
return 0;
}and it would output the user/system/wall time:
Name: Heavywork
Des: timming cost in closest scope
UserTime: 0.005935
SystemTime: 0.000024
WallTime: 0.005959
Name: Main
Des: timming cost in main function scope
UserTime: 0.005942
SystemTime: 0.000033
WallTime: 0.005981
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