Re: Memory Usage in Regex On Large Sequence

You'll need to dave_the_m or someone similar to explain why the regex engine would consume more memory than index, even for an apparently similar, simple search, but it would not surprise me if it does.

In the meantime, have you tried reducing my $max_threads = 10;? Did that make a difference?

Other questions.

Which OS are you using?
Which version of Perl?

If you are on Win32, could you post the output of

dumpbin /headers \path\to\your\perl.exe
[download]

In particular, these lines:

         1000000 size of stack reserve
            1000 size of stack commit
          100000 size of heap reserve
            1000 size of heap commit
[download]

See Use more threads. for why.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

Comment on Re: Memory Usage in Regex On Large Sequence Select or Download Code

Replies are listed 'Best First'.
Re^2: Memory Usage in Regex On Large Sequence by bernanke01 (Beadle) on Sep 25, 2006 at 18:00 UTC
Hi Browser! Reducing to `$max_threads = 3` didn't affect things, but I'll try going to 1 and see what happens there. For other things, this is perl 5.8.8 on AIX 5.2, but all has been replicated on 5.8.7 on AIX 5.3 as well.	[reply] [d/l]