On (02/08/07 09:44), KAMEZAWA Hiroyuki didst pronounce:
> On Wed, 01 Aug 2007 15:02:51 -0400
> Lee Schermerhorn <[email protected]> wrote:
> > [But, maybe reordering the zonelists is not such a good idea
> > when ZONE_MOVABLE is populated?]
> >
>
> It's case-by-case I think. In zone order with ZONE_MOVABLE case,
> user's page cache will not use ZONE_NORMAL until ZONE_MOVABLE in all node
> is exhausted. This is an expected behavior, I think.
>
This is expected behaviour. I see no reason for lower zones to be used
for allocations that use memory from a higher zone with free memory.
> I think the real problem is the scheme for "How to set zone movable size to
> appropriate value for the system". This needs more study and documentation.
> (but maybe depends on system configuration to some extent.)
>
It depends on the system configuration and the workload requirements.
Right now, there isn't exact information available on what size the zone
should be. It'll need to be studied over a period of time.
--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
