[lkml]   [2006]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: 2.6.19-rc5-mm1 progression
Peter Zijlstra wrote:
> On Mon, 2006-12-04 at 21:32 -0600, Larry Finger wrote:

>>There are at least two patches in 2.6.19-rc5-mm2 that make my system much more responsive for
>>interactive jobs. The one that has the majority of the effect is:
>>I have not been able to isolate the second patch, which has the lesser effect. All I can say is that
>>it occurred before the above patch in patches/series. This patch was tested against 2.6.19 and fixed
>>most of the problem on that version.
> Curious...
> This patch introduces the direct pointer optimisation for single element
> radix trees and makes the radix tree safe to read in a lock-less manner
> which is not used -yet-. The only difference that that should have is
> that the elements are freed using rcu callback instead of directly.
> /me puzzled how this has a large effect on interactivity.
> Nick?

I have already got the direct data optimisation upstream. It might be
possible that it is some interaction with the extra rcu callbacks going
off... I don't know :\

SUSE Labs, Novell Inc.
Send instant messages to your online friends

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2006-12-07 10:39    [W:0.037 / U:44.592 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site