Snort mailing list archives
RE: Re: How can I improve ACID Performance
From: Saad Kadhi <bsdguy () noos fr>
Date: 15 Oct 2001 18:06:21 +0200
On Mon, 2001-10-15 at 16:33, Steve Halligan wrote:
I am no linux expert but I got better performance after tweaking my openbsd kernel & adding some useful options.Do tell what kernel tweaks you made. How much performance did it get you?
hum I am looking real hard for the "please" or "would you mind" in the above sentence but can't see any. so let's do *for this time* a s/Do/please/ & here are the options I have added: #### CUSTOM OPTIONS option NMBCLUSTERS=8192 option NKMEMCLUSTERS=8192 option BUFPAGES=8192 option BUFCACHEPERCENT=25 option MAX_KMAP=120 option MAX_KMAPENT=6000 option SEMMNI=256 option SEMMNS=2048 option SHMMAXPGS=4096 I got these options from Henning Bauer (http://misc.bsws.de/obsdtuning/webserver.txt) & other posts on misc () openbsd org. You may get a look in the archives @ http://marc.theaimsgroup.com + man options(4) for their meaning. The values depend largely on your system hardware/configuration. But the above are considered quite safe values. As to the how much performance it got me, I saw a noticeable difference on the loading time acid_main.php & other underlying pages when I recompiled the kernel with the above mentioned options. I didn't make any real measurements of the performance gain. When I saw that the combination of MySQL/Snort/Apache/ACID/OpenBSD displayed the alerts faster & allowed me to delete & archive the alerts faster then I was happy & forgot about this thing. Anyways, if you are looking for some performance measurement, get a look at: http://www.darkcore.net/~wangster/benchmarks/ http://innominate.org/~tgr/slides/performance/img0.htm HTH & do not forget the please next time mate :) -- /saad [put your signature here] self-customize-sig(tm). another dumb patent... nodisclaimer _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- How can I improve ACID Performance Marty . Bostick (Oct 10)
- Re: How can I improve ACID Performance Andreas Hasenack (Oct 10)
- <Possible follow-ups>
- RE: How can I improve ACID Performance Lee Brotherston (Oct 10)
- RE: How can I improve ACID Performance Steve Halligan (Oct 10)
- RE: How can I improve ACID Performance Reeves, Michael (GEAE, Compaq) (Oct 10)
- Re: How can I improve ACID Performance Marty . Bostick (Oct 10)
- Re: Re: How can I improve ACID Performance Saad Kadhi (Oct 14)
- RE: Re: How can I improve ACID Performance Ju Kong Fui (Oct 10)
- RE: How can I improve ACID Performance Ju Kong Fui (Oct 10)
- RE: Re: How can I improve ACID Performance Steve Halligan (Oct 15)
- RE: Re: How can I improve ACID Performance Saad Kadhi (Oct 15)