[Intel-wired-lan] [RFC v2 net-next 00/10] Time based packet transmission
Richard Cochran
richardcochran at gmail.com
Tue Jan 23 05:23:27 UTC 2018
On Wed, Jan 17, 2018 at 03:06:11PM -0800, Jesus Sanchez-Palencia wrote:
> First, a baseline test was ran for 10 minutes with the plain kernel only:
>
> | | plain kernel @ 1ms |
> |-----------------+--------------------+
> | min (ns): | +4.820000e+02 |
> | max (ns): | +9.999300e+05 |
> | pk-pk: | +9.994480e+05 |
...
> | | tbs SW @ 1ms | tbs HW @ 1ms | tbs HW @ 250 us |
> |-----------------+-------------------+----------------+-----------------|
> | min (ns): | +1.510000e+02 | +4.420000e+02 | +4.260000e+02 |
> | max (ns): | +9.977030e+05 | +5.060000e+02 | +5.060000e+02 |
> | pk-pk: | +9.975520e+05 | +6.400000e+01 | +8.000000e+01 |
I wonder about these worst case measurements of 999 and 998
milliseconds. It almost looks like you missed one entire period.
Could this simply be a bug in the test setup?
Thanks,
Richard
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