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

In noticed that the epoll patch wants to patch source files in a
directory called 'squid'), so make sure you mv SQUID-2.5STABLE12/ to
squid/ after you extract from the tar.gz

#> patch -p0 < epoll-2.5.patch

To bootstrap, simply cd into squid/ and ./bootstrap.sh

When I did it initially, bootstrap wasn't working for me, so I had to
downgrade my automake and autoconf to the right versions, at least for
STABLE12 which is what I was building at the time. Here are links for
the versions that work:
http://mirrors.kernel.org/gnu/autoconf/autoconf-2.13.tar.gz &
http://mirrors.kernel.org/gnu/automake/automake-1.5.tar.gz -- you'll
need to build and make them first before bootstrapping again. When you
run bootsrap, you can ignore warnings but not errors!

After you bootstrap without errors, you should be ready to run any
preconfiguration commands you need and then configure.

-----Original Message-----
From: Michal Mihalik [mailto:michal.mihalik@petitpress.sk]
Sent: Monday, March 27, 2006 2:05 PM
To: 'Mike Solomon'
Cc: squid-users@squid-cache.org
Subject: RE: [squid-users] squid performance epoll. 350req/sec 100% cpu

Hi
 ok I learned the strace and it does call select (99% of time)
 
 looks like my epoll is not active :-((
 and I did found that I didn't compile it as I should.

But now I am unable to compile because of this errors.
 I don't have automake 1.5 (only 1.4 1.6 1.7 1.9)
And autoconf too
I do have debian stable... And added to it apt sources -> testing (to
get
latest squid)

Can someone help tu run this?
I don't understand this whole think of automake autoconf

# this one later doesn't compile cleanly
# bootstrap.sh
########################################################3
WARNING: Cannot find automake version 1.5
Trying automake (GNU automake) 1.9.6
WARNING: Cannot find autoconf version 2.13
Trying autoconf (GNU Autoconf) 2.59
acinclude.m4:10: warning: underquoted definition of
AC_CHECK_SIZEOF_SYSTYPE
  run info '(automake)Extending aclocal'
  or see
http://sources.redhat.com/automake/automake.html#Extending-aclocal
acinclude.m4:49: warning: underquoted definition of AC_CHECK_SYSTYPE
configure.in:1555: warning: AC_CHECK_TYPE: assuming `u_short' is not a
type
autoconf/types.m4:234: AC_CHECK_TYPE is expanded from...
configure.in:1555: the top level
autoheader: WARNING: Using auxiliary files such as `acconfig.h',
`config.h.bot'
autoheader: WARNING: and `config.h.top', to define templates for
`config.h.in'
autoheader: WARNING: is deprecated and discouraged.
autoheader:
autoheader: WARNING: Using the third argument of `AC_DEFINE' and
autoheader: WARNING: `AC_DEFINE_UNQUOTED' allows to define a template
without
autoheader: WARNING: `acconfig.h':
autoheader:
autoheader: WARNING: AC_DEFINE([NEED_FUNC_MAIN], 1,
autoheader: [Define if a function `main' is needed.])
autoheader:
autoheader: WARNING: More sophisticated templates can also be produced,
see
the
autoheader: WARNING: documentation.
configure.in:1555: warning: AC_CHECK_TYPE: assuming `u_short' is not a
type
autoconf/types.m4:234: AC_CHECK_TYPE is expanded from...
configure.in:1555: the top level
configure.in:1555: warning: AC_CHECK_TYPE: assuming `u_short' is not a
type
autoconf/types.m4:234: AC_CHECK_TYPE is expanded from...
configure.in:1555: the top level
configure.in:1555: warning: AC_CHECK_TYPE: assuming `u_short' is not a
type
autoconf/types.m4:234: AC_CHECK_TYPE is expanded from...
configure.in:1555: the top level
Autotool bootstrapping complete.

Thanks
 Mike
 

> -----Original Message-----
> From: Mike Solomon [mailto:mas63@cornell.edu]
> Sent: Monday, March 27, 2006 8:28 PM
> To: Michal Mihalik
> Cc: squid-users@squid-cache.org
> Subject: 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 - 15:21:32 MST