Author: JW de Kort
Date: 05:39:53 01/23/02
Hi!
Last week i decided it was time to speed up my evaluation function. In order to
do so i inserted some code to keep track of the time spend in various parts of
the evaluation function. Somthing like:
int timeused []
eval()
{
timeused[total]-=clock();
timeuses[part1] -=clock
// do some evaluation
timeused[part]+=clock();
timeuse [part2] -= clock();
// do some other evaluation
tumeuse [part2]-=clock();
timeuse[total]+=clock();
}
Then i evaluated the time spend in the various parts. This was very
disappointing: after 10 runs of the same number evaluations each run jused a
different amount of time and the time spend in the various parts of the
evaluation also different, not only in time used but also in time used as a
percentage of the total time spend evaluating. These difference where not small
but rather large. In one word: useless!
Can anybody explain this behaviour? And is there a better way to time?
Thanks in advance
Jan WIllem
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