ons 2009-11-25 klockan 18:01 +0300 skrev fedorischev: > This behavior is typical for one client - he is always downloading something > from file sharing services e.g. rapidshare etc. In this example FDs > 23,38,57,67 are occupied by him. I think (correct me if not right), that > loading is concerned with non-rational one-byte syscalls - read/write always > processed 1 byte for each call. Is this a bug, or, maybe something else ? Why > Squid don't use block-read & write to avoid syscalls overhead ? Smells like a bug to me. Next time you see the problem can you pleae run "squid -k debug; sleep 1; squid -k debug" to collect a detailed debug log of what Squid is doing to those fds.. and then file a bug report and attach the data there. warning: You may want to censor it a bit first as there may be user passwords and other sensitive material.. Alternatively if you trust me then deposit the debug trace at ftp://ftp.squid-cache.se/incoming/ and drop me an email. Regards Henrik