On 04/08/2010 06:23 PM, Andrea Arcangeli wrote:
On Thu, Apr 08, 2010 at 02:44:01PM +0300, Avi Kivity wrote:
Results here are less than stellar. While khugepaged is pulling pages
together, something is breaking them apart. Even after memory pressure
is removed, this behaviour continues. Can it be that compaction is
tearing down huge pages?
migrate will split hugepages, but memory compaction shouldn't migrate
hugepages... If it does I agree it needs fixing.
Well, khugepaged was certainly fighting with something. Perhaps ftrace
will point the finger.
At the moment the main problem I'm having is that only way to run
stable for me is to stop at patch 48 (included). So it's something
wrong with memory compaction or migrate.
It ran stably for me FWIW.
--
error compiling committee.c: too many arguments to function
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxxx For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>