Re: [PATCH] mm: inactive-clean list

From: Rik van Riel
Date: Mon Jul 24 2006 - 14:58:48 EST


Christoph Lameter wrote:
On Sun, 23 Jul 2006, Rik van Riel wrote:

This patch makes it possible to implement Martin Schwidefsky's
hypervisor-based fast page reclaiming for architectures without
millicode - ie. Xen, UML and all other non-s390 architectures.

That could be a big help in heavily loaded virtualized environments.

The fact that it helps prevent the iSCSI memory deadlock is a
huge bonus too, of course :)

I think there may be a way with less changes to the way the VM functions to get there:

That approach probably has way too many state changes going
between the guest OS and the hypervisor...

--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/