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I was trying to implement small time delays in multithreading code using boost::this_thread::sleep.
Here is code example:
{
boost::timer::auto_cpu_timer t;//just to check sleep interval
boost::this_thread::sleep(boost::posix_time::milliseconds(25));
}
Output generated by auto_cpu_timer confused me little bit:
0.025242s wall, 0.010000s user + 0.020000s system = 0.030000s CPU (118.9%)
Why it 0.025242s but not 0.0025242s ?
Because 25 milliseconds is 0.025 seconds; 0.0025 seconds would be 2.5 milliseconds.