[squid-users] Poor Squid performance problem (bis!)

Hello,

Does anyone have any idea about it ?

sorry for this second mail, but I'm really blocked and I can't go on with
using Squid if I can't get better performance !
usually, when I perform these tests, caches are 100% CPU loaded. Here it is
not even the case. I'd like to identify the (hard or soft) limitation and
get rid of it.

Any help will really be appreciated ...

Bye,

Richard

> -----Message d'origine-----
>
> Hello,
>
> i've got a little problem with Squid configuration tuning :
>
> I've got Squid 2.3 STABLE 3 under Solaris 8
>
> My server is quite powerful : Sun Fire E-280 with 2 procs & 1 Go Ram
>
> I want to have my squid deal as most simultaneous connections as possible
> (for its tuning)
>
> To measure connections, I use little tool which send HTTP requests of 1k
> cacheable pages to 'squid'
> If it can help, here is my request : "GET http://192.xxx.xxx.xxx/1k.html/
> HTTP/1.1"
>
> My problem is that I can't deal with more than 1000 'simultaneous hits'
> (whereas I get more than 2000 with other caches of little size)
>
> I have checked CPU & Memory, it's OK :
> I've got 30% Free on 1 CPU, and 60% on the other (besides, how does squid
> deal with multi processors?)
> Also, I've got more than enough RAM (or swap) free
>
> So, my question is : why not more than 1000 connections ?
> Is it due to File Descriptors limitation ?
> I have set Soft limit to 1024 and Hard Limit to 4096 (it seems that Squid
> can't manage more than 1024 FD).
> I use poll() method for file access.
>
> I'm almost sure there is one parameter i need to change, but I can't find
> it (i've tried almost all Squid Tags)
> here is my squid.conf file (it's really minimal ...)
>
> # NETWORK OPTIONS
> http_port 3128
> icp_port 0
>
> cache_effective_user squid
> cache_effective_group squid
>
> cache_mem 500 MB
>
> maximum_object_size 4096 KB
> minimum_object_size 0 KB
>
> # OPTIONS WHICH AFFECT THE LOGs
>
> pid_filename /usr/local/squid/logs/squid.pid
>
> cache_dir ufs /usr/local/squid/cache 2500 16 256
> cache_log /usr/local/squid/logs/cache.log
> cache_access_log /dev/null
>
> pid_filename /usr/local/squid/logs/squid.pid
>
> # OPTIONS FOR EXTERNAL SUPPORT PROGRAMS
> ftp_passive on
>
> dns_children 5
>
> refresh_pattern . 5 20% 4000
>
> http_access allow All
>
> Any help will be greatly appreciated... !
>
> Bye,
>
> Richard.
>
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Received on Fri Aug 24 2001 - 10:15:35 MDT