I have a server program that communicates with a number of client programs via TCP sockets. I have tried to measure the response time of the server program by using a program similar to tcpdump (that uses a packet socket). However, when I run the server program on 2.4.0 within a SCHED_FIFO or SCHED_RR scheduling class (instead of SCHED_OTHER) the average response time gets better (and is more predictable) but I occasionally get delays that seems to be multiples of 2 seconds, in the range of 2 to 26 seconds. I don't get this behavior with 2.2.18. Does anybody have some idea why I get this strange behavior on 2.4.0? -- Patrik Hägglund - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/