RE: [squid-users] Re: High loads on linux box running squid - tuning

Hi all,

Thanks for all the help.

I just compiled a new verison of squid (stable8) and changed to diskd.

This seems to be a bit better. I am also going to ask for more RAM to put in the server.

Thanks alot!

K�r kve�ja / Best regards,
Finnur �. Gu�mundsson
System Engineer - System Operations
fog@t.is

TM Software - Skyggnir
Holtasm�ri 1, IS- 201 K�pavogur, Iceland
tel: + 354 545 3000-fax + 354 545 3001
www.t.is

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-----Original Message-----
From: news [mailto:news@sea.gmane.org] On Behalf Of Maik Ihde
Sent: 17. febr�ar 2005 10:49
To: squid-users@squid-cache.org
Subject: [squid-users] Re: High loads on linux box running squid - tuning

Finnur �rn Gu�mundsson - Skyggnir <fog <at> t.is> writes:

 
> Im running squid on HP Proliant DL360 (3.06Ghz Xeon / 1Gb ram / 2x 15K
> disks
in raid1)

We have two similar Caches. DL360G4 Models, however they have 2GB Ram and we don't use raid but have disks configured as a stripe set, since there is no data we need to protect.

> We have around 2000-2500 concurrent clients at daytimes

Well, we have less users but are running TM Viruswall on these Boxes.

> After i upgraded the box to the 3Ghz Xeon its still performing pretty
> much the
same (Loads from 0.80 to 2.00).

Squid does benefit from Memory and Disk Performace a lot, CPU is not that important. Your Machine is probably Swapping a lot? -> check that.

> cache_dir aufs /var/spool/squid 4000 16 256 (i know i do not have alot
> of
cacheing space, but this is a temp
> proxy solution)

We use diskd and have configured the cache dir Partition as ReiserFS instead of Ext3, also it is mounted with noatun,noatail.

> Is there anything i can do to quickly lower the load? How many users
> can one
put on a box like this? I have been
> google-ing alot and have seen talk about 2500-5000 on one box, not
> unlike this
one. Is this wrong?

Put more Ram into the box and I suggest to use ReiserFS and diskd. Our machines can do 50-60 req/s and CPU Load is mostly about 0.5 - and that's with the Viruswall between the Squid and the Internet which obviously costs performance.

HTH
Maik
Received on Thu Feb 17 2005 - 06:53:19 MST