RE: [IA64] Set default page size to 64k

From: Christoph Lameter <clameter_at_sgi.com>
Date: 2007-06-08 16:00:41
On Thu, 7 Jun 2007, Hans Boehm wrote:

> written data (e.g. for checkpoints or GC), and a small number of writes
> are distributed randomly through the address space (admittedly worst
> case) then 4 times as many bytes appear to be potentially written,
> and hence you may have to copy or scan 4 times as many bytes.
> I think the potential down side in cases like this is substantial,
> though it's probably quite rare.  Fpr software DSM it's probably even
> worse, since you are likely to introduce more false sharing.

On the other hand the transfer size and the locking becomes less. The 
false sharing can be controlled by setting INTERNODE_CACHE_SHIFT 
appropriately.

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Received on Fri Jun 08 16:00:53 2007

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