Simone,
in svn, under:
branches/rd235/vde-2
I have implemented an experimental version including:
- nanosecond resolution on delays: it uses ppoll
- dynamic delays (similar to yours): the first delay is 5ms (the mean value) and
then a value between 1ms and 10ms depending on the length of the queue.
Let me know if it works and if it gives the same performance increment you got
with
your code.
I am asking to the other members of the development team if:
- ppoll
- clock_gettime
- librt (-lrt) in Makefile.am
are portable to the other architectures supported for vde (expecially on MacOSX
and bsd).
Thank you to everybody.
renzo
P.S. I am currently brainstorming about the idea of per-port queues/delays, and
I am not
so sure that increasing the frequency for long queues is a good idea.
If there is a congested line, things may evolve to a worse situation.
question #1: is this the behavior of (non virtual) switch?
question #2: if it is different: is there something in virtualization
supporting the correctness
of this behavior?
P.S.#2 Simone, have you tried the kvde_switch?
I am curious to see if it has a better or worse behavior in your situation.
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