Tony, On Mon, Jun 16, 2008 at 7:31 PM, Anthony Tonns <atonns@xxxxxxxxxxxxxx> wrote: > Did you ever find a resolution to this issue? I'm running a very similar > config and running into very similar problems - only on more servers > using more memory and the "RHEL" squid package on CentOS 5 x86_64. Same > symptoms - no paging going on, only using 5.5G of the 8G of ram. It will > run fine for a few days. But then squid will totally consume 1 of the 4 > cores in the system (two dual-core AMD Opteron(tm) Processor 2212) but > after restart only 10-20% of one core. The only significant difference > other than sizing is that I have memory_replacement_policy set at lru > instead of heap GDSF. No. I let the broken Squid run for a few days, waiting for someone helping us diagnosing the problem but as I didn't have any answer, we restarted Squid as the service was really degraded. It solved the problem and we haven't reproduced it for now. FYI, we don't have a lot of regexp rules (a few refresh patterns and around 20 user-agents acls). I tried to oprofile the production Squid when we got the problem but didn't succeed in it. If someone has a good oprofile tutorial, I'm more than interested as I didn't find anything useful yet. Be sure I'll keep the list informed if I have some news about the problem. -- Guillaume