Messages in this thread | | | Subject | SCHED_FIFO/SCHED_RR in 2.4 vs 2.2 | Date | Wed, 17 Jan 2001 15:21:31 +0100 | From | Patrik Hagglund <> |
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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 majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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