On Fri, 2006-06-16 at 16:28 -0500, Gian Paolo Mureddu wrote:
> Lee Revell escribió:
> > I would recommend you attack one issue at a time. But yes, that will
> > work.
> >
> > It might not even be the case anymore that reiser3 causes latency
> > problems - the -rt kernel and the introduction of the preemptible BKL
> > probably improved the situation. It has been a long time since I tested
> > it.
> >
> > Lee
> >
> >
> >
> Hmm... it might be interesting to have a test case of this...
>
It should be trivial to make one. The -rt kernel is of course
unaffected, as all filesystem operations are offloaded to IRQ threads
and softirqd.
For testing the mainline kernel, use 2.6.16 with this patch:
http://people.redhat.com/mingo/latency-tracing-patches/latency-tracing-v2.6.16.patch
Generate a lot of disk activity (dbench, tiobench, etc) and
check /proc/latency_trace for reiserfs related entries.
Lee
Received on Sat Jun 17 04:15:05 2006
This archive was generated by hypermail 2.1.8 : Sat Jun 17 2006 - 04:15:06 EEST