Hi, is it possible that squid performs worse when handling large volumes of If-Modified-Since requests instead of normal GET's? I have two Squid servers running at around 1000 requests per second; the only difference in the traffic pattern i can discern is that 50% of requests on one server are IMS requests, which Squid responds to with 304 Not Modified; that server fails a heartbeat test sporadically, but the other one is fine. I would think that 304 responses are easier to serve, since Squid just returns headers -- but i can't find any other difference right now. Thanks in advance for your help! Lawrence
