Re: [squid-users] Performance Tuning - Transparent Cache

Here is a part of my config, it may help:

(FreeBSD 4.2 on PIII 600 with 256MB MEM)

cache_mem 48 MB
cache_swap_low 95
cache_swap_high 100
maximum_object_size 8192 KB
ipcache_size 8192
ipcache_low 90
ipcache_high 95
cache_replacement_policy heap LFUDA
memory_replacement_policy heap LFUDA
cache_dir diskd /cache 11500 24 256
cache_access_log /dev/null
cache_log /usr/local/squid/logs/cache.log
cache_store_log none
cache_dns_program /usr/local/squid/libexec/squid/dnsserver
dns_children 6
reference_age 3 month
half_closed_clients off

acl all src 0.0.0.0/0.0.0.0
http_access Allow all

httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_single_host off
httpd_accel_with_proxy on
httpd_accel_uses_host_header on

memory_pools off
buffered_logs on
reload_into_ims off
offline_mode off
ie_refresh on

--
Babak Farrokhi
Network Administrator
Planet Networks,Inc.
On Wed, 4 Apr 2001, Edward wrote:
> I am also getting that problem on my redhat 7.0 kernel 2.2.2.26 squid 2.4
> machine.
>
> Thank you very much.
>
> Best regards,
>
> Edward Millington
> (Network Administrator & Senior Technical Support Technician)
> Cariaccess Communications Ltd.
> Bridgetown
> Barbados
> 1-246-430-7435
> Fax : 1-246-431-0170
> edward@cariaccess.com
> www.cariaccess.com
> ----- Original Message -----
> From: "Babak Farrokhi" <farrokhi@earth.planet.co.ir>
> To: "Duane Wessels" <wessels@squid-cache.org>
> Cc: <squid-users@squid-cache.org>
> Sent: Wednesday, April 04, 2001 4:29 PM
> Subject: Re: [squid-users] Performance Tuning - Transparent Cache
>
>
> > I already did that!
> >
> > (On FreeBSD 4.3)
> >
> > /sbin/sysctl -w kern.ipc.somaxconn=1024
> > /sbin/sysctl -w net.inet.tcp.delayed_ack=0
> > /sbin/sysctl -w net.inet.ip.portrange.last=40000
> > /sbin/sysctl -w kern.maxfiles=16384
> > /sbin/sysctl -w net.inet.tcp.sendspace=32768
> > /sbin/sysctl -w net.inet.tcp.recvspace=32768
> >
> >
> > On Wed, 4 Apr 2001, Duane Wessels wrote:
> >
> > >
> > >
> > > On Wed, 4 Apr 2001, Babak Farrokhi wrote:
> > >
> > > > Hi,
> > > >
> > > > I implemented a transparent cache using squid-2.4.stable on FreeBSD
> 4.2.
> > > > (IPFW for transparency, BIND for DNS Caching, softupdates).
> > > > I also used diskd for better performance.
> > > > But when I compare is to a cobalt cache appliance or other commercial
> > > > appliances, it has a short latency to serve objects. When I disable
> the
> > > > cache in my network, I get a better response time. MRTG shows a very
> nice
> > > > service time.
> > > > Using a cobalt cache, I get the whole webpage very fast. But behind my
> > > > squid box, it's slower. especially when I use it as transparent (in
> > > > tradiotional mode, it's faster).
> > > > Did I miss any trick to tune-up my cache? Has anyone such experience
> with
> > > > this thing?
> > >
> > > If the difference in latency is about 200msec, then  you might
> > > have TCP delayed acks on the squid box?
> > >
> > > Duan eW.
> > >
> > >
> >
> >
>
>
>