lkml.org 
[lkml]   [2005]   [Jun]   [5]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateSun, 5 Jun 2005 15:49:16 +0200
FromIngo Molnar <>
SubjectRe: [patch] Real-Time Preemption, plist fixes
* Esben Nielsen <simlo@phys.au.dk> wrote:

> [...] In extreme load situations we could end up with a lot of waiters 
> on mmap_sem forinstance.

what do you mean by extreme load. Extreme number of RT tasks, or extreme 
number of tasks altogether? The sorted-list implementation i had in -RT 
had all non-RT tasks handled in an O(1) way - the O(N) component was for 
adding RT tasks (removal was O(1)).

so the question is - can we have an extreme (larger than 140) number of 
RT tasks? If yes, why are they all RT - they can have no expectation of 
good latencies with a possible load factor of 140!

	Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-06-05 13:54    [from the cache]
©2003-2008