Hi --
Good to hear!
--- In Peter Gammie <> wrote:
>
> Charles,
>
> Briefly: thanks heaps! I got 2.6.29.6 apparently doing its thing (hrt + rt)
> using the patch you cited - /proc/timers is making some sense, and my
> application must be getting sub-10ms sleeps as it doesn't flicker. I've added
> some comments below.
>
> On 17/01/2010, at 12:59 AM, Charles wrote:
>
> > The HRT, clockevents & dyntick support for ep93xx were in the -rt patchset
> > at one time, but seem to have been dropped some time ago. I don't recall
> > the exact versions, but there was a lull in -rt development and the ep93xx
> > support didn't make the forward port to the next -rt patch. Probably just
> > an oversight.
>
> Right. The version numbers for the -RT patches show that forward-porting has
> lagged.
>
> Roughly what I did to get the 2.6.29.6 linux kernel working with
> high-resolution timers and the real time patch was:
>
> Apply Matthieu's patch for 2.6.29.1 from the files area. Some of it is
> already in the mainline 2.6.29.6.
> Apply the -RT patch. I used patch-2.6.29.6-rt24.bz2
> Apply the clockevents patch from here:
>
> http://lkml.org/lkml/2009/7/22/119
>
> I hand-hacked this on, using some of the advice in the thread to clean it up
> a bit.
>
Any chance you could pass the clockevents patch on to Matthieu to include in
his patchset? HRT would help lots of users, I think, even without the -rt
support.
regards, ......... Charlie
> In the kernel config, switch on high-res timers and the fully pre-emptible
> kernel option.
>
> I get the impression that 2.6.31 would require a lot more effort to get
> going, as the memory subsystem has undergone some tectonic shifts.
>
> cheers
> peter
>
> --
> http://peteg.org/
>
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