Re: [squid-users] squid performance epoll. 350req/sec 100% cpu

I would bet that an strace on the master pid would reveal that you
are calling poll, not epoll.

There are several postings on the list about applying the epoll
patch, but IIRC, you need to explicitly --disable-poll --disable-
select --enable-epoll for it to work.

-Mike

On Mar 27, 2006, at 9:09 AM, Michal Mihalik wrote:

>>> Date: Mon, 27 Mar 2006 17:31:36 +0200
>>> From: Michal Mihalik <michal.mihalik@petitpress.sk>
>>> To: squid-users@squid-cache.org
>>> Subject: [squid-users] squid performance epoll. 350req/sec 100% cpu
>>>
>>> Hello.
>>> I am tring to optimize squid for best possible performance.
>>> it is in production and it's doing more than 350req/sec.
>> At peaks upto
>>> 500req/sec.
>>>
>>> My problem is only one. 100% cpu. :-)
>>>
>>> I tried to update my debian to 2.6.16 and recompiled squid:
>>>
>>> Squid Cache: Version 2.5.STABLE12
>>> configure options: --prefix=/usr --exec_prefix=/usr
>> --bindir=/usr/sbin
>>> --sbindir=/usr/sbin --libexecdir=/usr/lib/squid
>> --sysconfdir=/etc/squid
>>> --localstatedir=/var/spool/squid --datadir=/usr/share/squid
>>> --enable-async-io --with-pthreads
>> --enable-storeio=ufs,aufs,diskd,null
>>> --enable-linux-netfilter --enable-arp-acl
>> --enable-removal-policies=lru,heap
>>> --enable-snmp --enable-delay-pools --enable-htcp --enable-epoll
>>> --enable-cache-digests --enable-underscores --enable-referer-log
>>> --enable-useragent-log --enable-auth=basic,digest,ntlm --enable-carp
>>> --with-large-files i386-debian-linux
>>>
>>> the thing I realy don't like is 25% cpu + 50% system cpu .
>>>
>>> why the 50% system!!!!!
>>> can anyone help?
>>>
>>> Kind Regards
>>> Michal Mihalik
>>>
>>>
>>
>
>
Received on Mon Mar 27 2006 - 11:27:19 MST