lkml.org 
[lkml]   [2006]   [Mar]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] mm: swsusp shrink_all_memory tweaks
Date
On Friday 31 March 2006 03:12, Rafael J. Wysocki wrote:
> OK, I have the following observations:

Thanks.
>
> 1) The patch generally causes more memory to be freed during suspend than
> the unpatched code (good).

Yes I know you meant less, that's good.

> 2) However, if more than 50% of RAM is used by application data, it causes
> the swap prefetch to trigger during resume (that's an impression; anyway
> the system swaps in a lot at that time), which takes some time (generally
> it makes resume 5-10s longer on my box).

Is that with this "swsusp shrink_all_memory tweaks" patch alone? It doesn't
touch swap prefetch.

> 3) The problem with returning zero prematurely has not been entirely
> eliminated. It's happened for me only once, though.

Probably hard to say, but is the system in any better state after resume has
completed? That was one of the aims. Also a major part of this patch is a
cleanup of the hot balance_pgdat function as well, which suspend no longer
touches with this patch.

Cheers,
Con
-
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: 2006-03-30 22:41    [W:0.465 / U:0.332 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site