Frank Meier wrote:
> Hello,
>
> I wrote a very simple program in order to measure the time needed for a
> sending a fixed size data packet and receiving a 1 byte acknowledge.
>
> Basically it's:
No °basically° please. Set up a self standing test.
paolo
> while (..)
> {
> T1 = rt_get_time_ns();
> Send(); // 65007 byte packet
> Recv(); // 1 byte ACK
> T2 = rt_get_time_ns();
> }
>
> When looking at the duration T2-T1, I found that the worst-case value
> was always 1000000ns (independent of the number of loop cycles or the
> packet size used).
>
> Is this a known problem?
>
> System information:
> x86, Linux 2.6.22, RTAI 3.6cv, rtnet 0.9.9, e1000 driver with Intel
> 82541 NIC, no RTmac
>
> Best regards,
> Frank
>
>
>
>
>
>
>
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