Re: [patch] voluntary-preempt-2.6.9-rc1-bk4-Q7

K.R. Foley
2004-09-01T19:03:57Z

Thomas Charbonnel wrote:
> Ingo Molnar wrote :
>
>>i've released the -Q7 patch:
>>
>> http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc1-bk4-Q7
>
>
> With Q7 I still get rx latency issues (> 130 us non-preemptible section
> from rtl8139_poll). Moreover network connections were extremely slow
> (almost hung) until I set /proc/sys/net/core/netdev_backlog_granularity
> to 2.
>
> Thomas
>
>
>
I too am still getting these latencies, although not as often (maybe?).
I on the other hand am having no problems with slow connections.
However, this is with very little load on the system. Here is one such
trace:

http://www.cybsft.com/testresults/2.6.9-rc1-bk4-Q7/latencytrace4.txt

I do have a couple of new traces that seem to be related to transmitting
data, I think. They are here:

http://www.cybsft.com/testresults/2.6.9-rc1-bk4-Q7/latencytrace2.txt

http://www.cybsft.com/testresults/2.6.9-rc1-bk4-Q7/latencytrace3.txt

kr