[ros-users] Arm Core Performance
jfaust at willowgarage.com
Tue Jul 13 18:52:38 UTC 2010
> == NUM_PTS 1000 ==
> board avg_ser avg_deser
> intel i5 0.000011 0.000025
> arm1176jzf-s 0.001328 0.003354
Ok, so serialization is definitely much slower, but with the latency test
you're using it shouldn't affect anything. Good to know though.
> == Latency Results ==
> IPC NoTCP Bypass
> intel i5 : 0.4ms 0.10ms 0.05ms
> arm1176jzf-s : 25.0ms 4.50ms 3.50ms
> ====== Raw Socket Tests ======
> Tests the latencies of sending a single char from server to client,
> written using simple posix socket code.
> intel i5 : 0.1ms
> arm1176jzf-s : 1.4ms
Do you have any way of profiling exactly what's taking time, either with
gprof, google perf tools, or something else?
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