Messages in this thread |  | | Date | Tue, 16 Oct 2001 14:45:47 +0200 (CEST) | From | Martin Devera <> | Subject | sendto syscall is slow |
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Hello,
i'm doing new qos discipline developement and use own mesurment tool. It simply uses PF_PACKET and then doing sendto/recv simulating various flows. (I use both lo and eth0 where I short-connected RX-TX pins in single ethcard)
I can't get beyond 25 000 packets per second. gprof: Each sample counts as 0.01 seconds. % cumulative self self total time seconds seconds calls ms/call ms/call name 35.67 5.39 5.39 498750 0.01 0.01 sendto 26.67 9.42 4.03 1000826 0.00 0.00 poll 19.06 12.30 2.88 498750 0.01 0.01 recv
Is there any faster way to force raw packets to kernel ? I need to push qos discipline to its edge but I can't because send syscall is bottleneck. Is it possible to tx multiple packets in sinhle call or should I extend kernel myself for this testing purpose ?
thanks, devik
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