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Re: [bug #23321] Epsclosure speedup patch

From: Tony Abou-Assaleh
Subject: Re: [bug #23321] Epsclosure speedup patch
Date: Fri, 23 May 2008 03:03:11 -0300
User-agent: Thunderbird (Macintosh/20080421)

Johan Walles wrote:
Follow-up Comment #1, bug #23321 (project grep):

The just attached file shows grep benchmark results.  I got the patterns file
by doing:

cat /etc/logcheck/ignore.d.workstation > /tmp/ignore

The numbers show the startup time for grep with about 2500 regexps read from
a file (logcheck does this every hour) is:
Plain 2.5.3    : 68.0s
CALLOC patch   : 24.2s
int->char patch:  5.8s

Adding 10000 lines of input (my /var/log/daemon.0 log file) doesn't change
the numbers much:
Plain 2.5.3    : 70.4s

Both CALLOC and
int->char patch:  5.7s

The numbers look very promising. Thanks Johan. The CALLOC line is already in the latest source in the CVS. If no one objects in the next few days, the int->char change will be applied.

If you find similar (or other) inefficiencies in the code, I will happily apply correcting patches.



Tony Abou-Assaleh
Email:    address@hidden
Web site: http://tony.abou-assaleh.net

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