At 02:20 AM 6/10/2003 -0700, William Lee Irwin III wrote:

At some point in the past, I wrote:

quoted

quoted

How about one or the other of these two? (not both at once, though,
they appear to clash).

On Tue, Jun 10, 2003 at 10:54:55AM +0200, Maciej Soltysiak wrote:

quoted

Success, no audio skipps with galbraith.patch and mm6.

(victim of fast hw methinks.  dog slow old isa card will probably work fine)

Mike, any chance you can turn your series of patches into one that
applies atop mingo's intra-timeslice priority preemption patch? If
not, I suppose someone else could.

I've never seen it.  Is this the test-starve fix I heard mentioned on lkml 
once?

There also appears to be some kind of issue with using monotonic_clock()
with timer_pit as well as some locking overhead concerns. Something
should probably be done about those things before trying to merge the
fine-grained time accounting patch.

Ingo had me measure impact with lat_ctx, and it wasn't very encouraging 
(and my box is UP).  I'm not sure that I wasn't seeing some cache effects 
though, because the numbers jumped around quite a bit.  Per Ingo, the 
sequence lock change will greatly improve scalability.  Doing anything 
extra in that path is going to cost some pain though, so I'm trying to 
figure out a way to do something ~similar.  (ala perfect is the enemy of 
good mantra).

wrt pit, yeah, that diff won't work if you don't have a tsc.  If something 
like it were used, it'd have to have ifdefs to continue using 
jiffies.  (the other option being only presentable on April 1:)

         -Mike 

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