Re: [PATCH 3/8] Allow huge page allocations to use GFP_HIGH_MOVABLE
From: Mel Gorman
Date: Fri Jan 26 2007 - 12:38:25 EST
On Fri, 26 Jan 2007, Christoph Lameter wrote:
On Fri, 26 Jan 2007, Mel Gorman wrote:
What is the e1000 problem? Jumbo packet allocation via GFP_KERNEL?
Yes. Potentially the anti-fragmentation patches could address this by
clustering atomic allocations together as much as possible.
GFP_ATOMIC allocs?
Yes
Do you have a reference to the thread where this was
discussed?
It's come up a few times and the converation is always fairly similar
although the thread http://lkml.org/lkml/2006/9/22/44 has interesting
information on the topic. There has been no serious discussion on whether
anti-fragmentation would help it or not. I think it would if atomic
allocations were clustered together because then jumbo frame allocations
would cluster together in the same MAX_ORDER blocks and tend to keep other
allocations away.
--
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 majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/