Re: [PATCH] Significant performace improvements on reiserfs systems

Robert Love
2001-09-20T22:25:30Z

On Thu, 2001-09-20 at 17:11, Dieter Nützel wrote:
> > I am putting together a conditional scheduling patch to fix some of the
> > worst cases, for use in conjunction with the preemption patch, and this
> > might be useful.
>
> The conditional_schedule() function hampered me from running it already.

hrm, i didnt notice that conditional_schedule wasnt defined in that
patch. you will need to do it, but do something more like

if (current->need_resched && current->lock_depth == 0) {
unlock_kernel();
lock_kernel();
}

like Andrew wrote.

If you don't jump on the idea of trying this :) I will send work out a
patch that does some other low-latency thigns and send it out.

--
Robert M. Love
rml at ufl.edu
rml at tech9.net