[squid-users] Squid 3.1.0.13 throughput issue

We upgraded from squid 3.0STABLE8 to squid 3.1.0.13 for some new
features in ICAP code. We push relatively high traffic through the
squid box(around 800 requests/second for each box with 16 squid
instances running). The box has 8 CPUs and 8G memory. Squid cache is
disabled but ICAP is enabled. All these work fine on 3.0STABLE8. After
we deployed squid 3.1.0.13 on last Tuesday, the throughput
(requests/seconds) becomes spiky. For example, the client requests
sometimes dropped from 800 requests/second to 200 requests/seconds and
recovered after a few minutes. The requests/second is measured using
SNMP cacheProtoClientHttpRequests. Anybody has similar problem?

Thanks
Received on Wed Oct 21 2009 - 18:28:20 MDT