On Mon, 2004-11-29 at 11:32, Martin Marji Cermak wrote: > Hello guys, > I have been playing with Squid under a heavy load and there are some stats. > I am trying to maximise the "Byte Hit Ratio" value. I got 13% average, > but I am not happy about this number - I want it higher (how to do it?). > There are thousands of ADSL clients using the cache and I want to know > what the Squid limits are. > > USED HARDWARE: > Processor: P4 1.8GHz > Memory: 1 GB > Hardisk: 40 GB IDE 7200rpm > Controler: Serverworks Chipset > Ethernet card: Broadcom TG3
I just built one but it's not connected/not a lot of users yet. 2.4G/512MB/80GB SATA 7200 > ACHIEVED PERFORMANCE: > Byte Hit Ratio: 13% (TOO LOW !!!) You want to save bandwidth or you want speed?? > USED CONFIGURATION: > maximum_object_size 51200 KB (SHOULD I MAKE IT HIGHER ???) I made mine to cache up to 40MB only. If you really want to have more byte hit ratio, then by all means, up the max_obj_size. > cache_dir aufs /cache 25000 16 256 > (one ide disk, see the spec above) This seems too low. I used 40GB of the 80GB drive > cache_mem 8 MB 200 MB. More being cached to memory. Faster retrieval. > > The Squid is configured as a transparet proxy, so: > httpd_accel_uses_host_header on > httpd_accel_with_proxy OFF (yes, transparent) > httpd_accel_port 80 > httpd_accel_host virtual Say.. do you have any experience running a load balanced squid? I'm wondering, since it's transparent, what happens if Squid Goes down? (for X Reasons?) What happens to your ADSL users? (in the thousands??) > Tell me if you are interested in other settings. Are you logging a lot of things? If you are, your IDE disk may not be able to sustain the throughput. It's advised to reduce or eliminate the logs unless you really need it.
