Re: [patch] Latency Tracer, voluntary-preempt-2.6.8-rc4-O6

Lee Revell
2004-08-19T22:31:10Z

On Thu, 2004-08-19 at 15:30, Theodore Ts'o wrote:
> On Thu, Aug 19, 2004 at 07:19:58AM -0400, Lee Revell wrote:
> > > I doubt SHA_CODE_SIZE will make a sufficient difference to avoid the
> > > latency problems. What we would need to do is to change the code so
> > > that the rekey operation in __check_and_rekey takes place in a
> > > workqueue. Say, something like this (warning, I haven't tested this
> > > patch; if it breaks, you get to keep both pieces):
> > >
> >
> > Tested, works for me. This should probably be pushed upstream, as well
> > as added to -P5, correct? Is there any disadvantage to doing it this
> > way?
>
> Great, I will be pushing this upstream very shortly.
>

Hmm, turns out that this does not fix the problem:

http://krustophenia.net/testresults.php?dataset=2.6.8.1-P4#/var/www/2.6.8.1-P4/extract_entropy_latency_trace.txt

Lee