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Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc3-mm1-V0.7.33-0
From: Lee Revell <rlrevell@joe-job.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>, LKML <linux-kernel@vger.kernel.org>,
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Date: Tue, 14 Dec 2004 16:57:34 -0500
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On Tue, 2004-12-14 at 22:51 +0100, Ingo Molnar wrote:
> * Lee Revell <rlrevell@joe-job.com> wrote:
> 
> > On Tue, 2004-12-14 at 22:18 +0100, Ingo Molnar wrote:
> > > i've been thinking about it on and off. If you would/could try it that
> > > would certainly help. RT for Linux is a dance of many small steps.
> > > 
> > > the two projects are obviously complementary and i have no intention to
> > > reinvent the wheel in any way. Best would be to bring hires timers up to
> > > upstream-mergable state (independently of the -RT patch) and ask Andrew
> > > to include it in -mm, then i'd port -RT to it automatically.
> > 
> > OK, I'll give this a shot.  It would certainly help on my underpowered
> > EPIA system, where my tests show 2.1% residency for the timer ISR with
> > HZ=1000.  On a system like this I would expect the difference to be
> > perceptible with a regular desktop workload.
> 
> a warning: it's probably quite complex merging work - while the two
> projects work on different conceptual issues, they touch the same code.
> 

Yeah, I expected this, I'll wait for George to update it.  I am testing
with 2.6.9 vanilla for the time being.  

Lee