grep speed on Opteron vs P4
Matt Davey
mcdavey at mrao.cam.ac.uk
Tue Sep 5 15:17:13 UTC 2006
On Tue, 2006-09-05 at 16:04 +0100, Tim Waugh wrote:
> You're comparing different grep package releases (RHEL 4 vs FC 3), with
> different patches, so it's hard to know what to take from the test
> results.
>
> Try comparing the same grep packages (name-version-release) so that you
> know the same patches have been applied on both machines.
>
> Tim.
> */
Check your LANG environment variable.
I found that with a utf locale (eg 'en_IE.UTF-8'), many grep patterns
became incredibly slow. Setting my locale to 'C' fixed the issue. I
didn't have time to investigate further.
Matt Davey When I read about the evils of drinking, I gave
mcdavey at mrao.cam.ac.uk up reading. - Henny Youngman.
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