[squid-users] Poor Squid performance problem

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 Wed Aug 22 2001 - 10:40:05 MDT