I have noticed that it always start to fail when there are only available exactly 3276 file descriptors and 13108 file desc in use. That is almost exactly 20% free file descriptors. Still it look for me that there is a problem of not enough file descriptors (just because of the with-maxfd=16384 config in the installation of Squid) but I wonder whether is it normal that it always stick at that number (and not in something much closer to 0 available file descriptors and 16384 file desc in use). If file desc are the problem I also wonder why I am not getting any error in the logs while in the past I did get the "Your cache is running out of filedescriptors" error. Any ideas? This was the activity in two different moments and even in different servers (if I am not wrong), as you can see it stuck in the same number: Server 1: Maximum number of file descriptors: 16384 Largest file desc currently in use: 13125 Number of file desc currently in use: 13108 Files queued for open: 0 Available number of file descriptors: 3276 Reserved number of file descriptors: 100 Store Disk files open: 73 IO loop method: epoll Server 2: Maximum number of file descriptors: 16384 Largest file desc currently in use: 13238 Number of file desc currently in use: 13108 Files queued for open: 0 Available number of file descriptors: 3276 Reserved number of file descriptors: 100 Store Disk files open: 275 IO loop method: epoll You say that in your slow server you are able to achieve twice req/sec than in your fastest one but in both cases active connections remain in a max of around 20k, is it true? How many file descriptors do you reach at that point? 20000? Those machines are also different in RAM? How important is the RAM difference for the performance of Squid? According to the bottlenecks you said, I wonder whether from 2 GB onwards the rest of the RAM is useless or not for Squid. Thank you Amos -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/About-bottlenecks-Max-number-of-connections-etc-tp4658650p4658688.html Sent from the Squid - Users mailing list archive at Nabble.com.
