'Varnish: Re: Requesting real-world stats, please'

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List:       varnish-misc
Subject:    Varnish: Re: Requesting real-world stats, please
From:       afassl () progis ! de (Andreas Fassl)
Date:       2010-05-26 14:15:09
Message-ID: 4BFD2CED.7040902 () progis ! de
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# varnishstat -V
varnishstat (varnish-2.0.5)
Copyright (c) 2006-2009 Linpro AS / Verdens Gang AS

# varnishstat -1 -f n_object,n_objecthead
n_object               441847          .   N struct object
n_objecthead           203761          .   N struct objecthead

# ps aux | grep varnish
root      9418  0.0  0.0 110724   744 ?        Ss   May11   0:10 
/usr/sbin/varnishd -P /var/run/varnishd.pid -a :80 -f 
/etc/varnish/prod/master.vcl -T 127.0.0.1:6082 -t 120 -w 200,4000,120 -s 
malloc,10G
nobody    9419  5.7 83.4 20961460 10289712 ?   Sl   May11 1265:05 
/usr/sbin/varnishd -P /var/run/varnishd.pid -a :80 -f 
/etc/varnish/prod/master.vcl -T 127.0.0.1:6082 -t 120 -w 200,4000,120 -s 
malloc,10G
-------------------------------------
# varnishstat -V
varnishstat (varnish-2.1.1 SVN )
Copyright (c) 2006-2009 Linpro AS / Verdens Gang AS

# varnishstat -1 -f n_object,n_objecthead
n_object               594432          .   N struct object
n_objecthead           364887          .   N struct objecthead

# ps aux | grep varnish
root      1500  0.0  0.0 112948  1212 ?        Ss   May06   0:02 
/usr/sbin/varnishd -P /var/run/varnishd.pid -a :80 -f 
/etc/varnish/prod/master.vcl -T 127.0.0.1:6082 -t 120 -w 200,4000,120 -s 
malloc,9G
nobody    1501 21.1 91.2 23466228 11252380 ?   Sl   May06 6098:29 
/usr/sbin/varnishd -P /var/run/varnishd.pid -a :80 -f 
/etc/varnish/prod/master.vcl -T 127.0.0.1:6082 -t 120 -w 200,4000,120 -s 
malloc,9G

Angie T. Muhammad wrote:
> # ps aux | grep varnish
> varnish   3772  0.1  1.6 21146720 411640 ?     Sl   May08  42:28 
> /usr/sbin/varnishd -P /var/run/varnish.pid -a :80 -T localhost:6082 -f 
> /etc/varnish/default.vcl -u varnish -g varnish -p thread_pools 4 -p 
> thread_pool_min 500 -p thread_pool_max 4000 -p thread_pool_add_delay 2 
> -p listen_depth 4096 -p lru_interval 60 -p session_linger 100 -h 
> classic,169313 -p sess_workspace 262144 -p log_hashstring off -p 
> sess_timeout 10 -p shm_workspace 32768 -p connect_timeout 600 -p 
> max_restarts 6 -s malloc,2G
> 
> # varnishstat -1 -f n_object,n_objecthead
> n_object                 9596          .   N struct object
> n_objecthead             8216          .   N struct objecthead
> 
> # rpm -qa | grep varnish
> varnish-libs-2.1.2-1
> varnish-2.1.2-1
> 
> serving around 70,000 requests / day with a peak of 12 req / sec
> 
> 
> On Wed, May 26, 2010 at 12:22 PM, Angie T. Muhammad 
> <angie.tawfik at gmail.com <mailto:angie.tawfik at gmail.com>> wrote:
> 
> Adun, may I ask about apache's configuration running behind this
> varnish installation and HW specs too if you don't mind ?
> Thank you :) 
> 
> On Wed, May 26, 2010 at 1:18 AM, Audun Ytterdal
> <audun at ytterdal.net <mailto:audun at ytterdal.net>> wrote:
> 
> On Tue, May 25, 2010 at 2:28 PM, Poul-Henning Kamp
> <phk at phk.freebsd.dk <mailto:phk at phk.freebsd.dk>> wrote:
> > 
> > I may have "misunderestimated" the dynamics of how objects
> live in
> > Varnish caches and thus taken a wrong optimization decision with
> > the critbit hasher.
> > 
> > I am looking for data to figure this out, specifically the
> values of
> > the two varnishstat counters:
> > 
> > "N struct objecthead."
> > and
> > "N struct object"
> > 
> > Along with information about which version of varnish, and
> which, if
> > any -h argument you use.
> 
> One varnish doing about 4320 million req/day, peaks at 8K reqs/s
> 
> [root at dexter ~]# rpm -qa |grep varnish
> varnish-2.1.0-2.vg <http://varnish-2.1.0-2.vg>
> varnish-libs-2.1.0-2.vg <http://varnish-libs-2.1.0-2.vg>
> 
> [root at dexter ~]# ps axu |grep varnish
> varnish   1239 54.8 74.1 14895928 4526520 ?    Sl   May24 1053:21
> /usr/sbin/varnishd -P /var/run/varnish.pid -a :80 -f
> /etc/varnish/vg.vcl -T 127.0.0.1:82 <http://127.0.0.1:82> -t
> 600 -u varnish -g varnish -p
> thread_pool_add_delay 5 -p thread_pool_timeout 120 -p
> thread_pools 4
> -w 200,3000,120 -s malloc,5G
> 
> [root at dexter ~]# varnishstat -1 -f n_object,n_objecthead
> n_object               129723          .   N struct object
> n_objecthead           163562          .   N struct objecthead
> 
> _______________________________________________
> varnish-misc mailing list
> varnish-misc at varnish-cache.org
> <mailto:varnish-misc at varnish-cache.org>
> http://lists.varnish-cache.org/mailman/listinfo/varnish-misc
> 
> 
> 
> 
> -- 
> All the best,
> Angie
> 
> 
> 
> 
> -- 
> All the best,
> Angie
> ------------------------------------------------------------------------
> 
> _______________________________________________
> varnish-misc mailing list
> varnish-misc at varnish-cache.org
> http://lists.varnish-cache.org/mailman/listinfo/varnish-misc

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