From: [email protected]
[mailto:[email protected]] On Behalf Of
[email protected]
Sent: 08 September 2010 14:53
To: Gabor Szabo
Cc: Jenda Krynicky; [email protected];
[email protected]
Subject: Re: Hash performance v. hash size setting
> Because the actual process is rather slow--and I'm not sure there's
much to be done to speed things up, I try to pick up what snippets of
> performance I can in the setup code, hence my query.
Unfortunately, programmers are notoriously bad at guessing where
performance bottlenecks are. That is why the general recommendation is
to measure (profile and/or benchmark) before attempting to make things
go faster.
while (!performance_acceptable()) {
profile();
my $x = locate_worst_bottleneck();
attempt_to_improve($x);
}
You might want to add 'and worth_the_effort()' to the loop condition.
Apologies, of course, if you have already been through all that.
HTH
--
Brian Raven
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