Hi,
Thank you for the advise. All the servers are also running apache as web and
BIND as dns service. # of them on RedHat Linux and has 2GB RAM. The other on
Solaris 8 and has 256MB RAM. I will have the changes for items such as
cahce_mem, etc made asap. However pls advise how do I configure them as
neighbours??? I am also using them for proxy purposes and no disk caching.
Regards.
From: Matus UHLAR - fantomas <uhlar@xxxxxxxxxxx>
To: squid-users@xxxxxxxxxxxxxxx
Subject: Re: [squid-users] Advice on performance
Date: Thu, 2 Jun 2005 10:47:26 +0200
On 01.06 19:09, squid squid wrote:
> The general info and squid.conf for my 4 squid servers as follows:
useless.
> Pls advise how is their performance and any tuning needed in order to
have
> better performance.
> Squid.conf (identical for all servers)
> # NETWORK OPTIONS
> http_port 3128
> icp_port 0
why did you turn off ICP? Turn it on and configure all caches as neighbours
to each other. You will spare much of network bandwidth.
> # OPTIONS WHICH AFFECT THE CACHE SIZE
> cache_mem 10 MB
unless you are low on memory, increase this. If you are low on memory, get
more memory and increase this after.
> maximum_object_size 1024 KB
too low, I cache objects up to 32 MB. However that is highly dependant on
cache size.
> maximum_object_size_in_memory 1024 KB
too high, I have 128KB to have more object with smaller sizes in memory
> # LOGFILE PATHNAMES & CACHE DIRECTORIES
> # Setting for null storage to avoid having a cache directory
> cache_dir null /export/home/log/squid/null
in such case, I understand why you have damn low efficiency. Your cache is
4 x 10 MB of ram and they are even not shared (via neighbour proxies).
get some disks
> # OPTIONS FOR TUNING THE CACHE
> request_header_max_size 5 KB
low. the default is 20KB for now
> negative_ttl 5 minutes
> positive_dns_ttl 30 minutes
> negative_dns_ttl 1 minutes
use internal DNS and that will make these useless. (DNS system has its own
timeouts configured by admins of remote sites that are probably better than
your values)
> # HTTPD-ACCELERATOR OPTIONS
> # For Squid to run as transparent proxy
> httpd_accel_uses_host_header on
do you use it as cache for outgoing requests or as HTTP accelerator? in
both
cases bigger cache_mem is useful (and configuring all proxies as neighbours
too), in the first case big disks are important (some disk cache may help
you even when using squids as accelerators).
> # MISCELLANEOUS
>
> memory_pools off
remove this (default is on)
--
Matus UHLAR - fantomas, uhlar@xxxxxxxxxxx ; http://www.fantomas.sk/
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