2006-11-23 01:34:59

by Rohit Seth

Subject: [Patch2/4]: fake numa for x86_64 patches

This patch increases the NODE_SHIFT from 6 to 8 to allow maximum of 256
nodes.

Signed-off-by: David Rientjes <[email protected]>
Signed-off-by: Paul Menage <[email protected]>
Signed-off-by: Rohit Seth <[email protected]>

--- linux-2.6.19-rc5-mm2.org/arch/x86_64/Kconfig 2006-11-22 12:20:55.000000000 -0800
+++ linux-2.6.19-rc5-mm2/arch/x86_64/Kconfig 2006-11-20 11:44:55.000000000 -0800
@@ -348,7 +348,7 @@ config K8_NUMA

config NODES_SHIFT
int
- default "6"
+ default "8"
depends on NEED_MULTIPLE_NODES

# Dummy CONFIG option to select ACPI_NUMA from drivers/acpi/Kconfig.

2006-11-23 09:02:41

by Andi Kleen

Subject: Re: [Patch2/4]: fake numa for x86_64 patches

On Wed, Nov 22, 2006 at 05:34:27PM -0800, Rohit Seth wrote:
> This patch increases the NODE_SHIFT from 6 to 8 to allow maximum of 256
> nodes.

Well you just change the default? Why do you think it's a good default?
I think it's a bit too large for a default, using too much memory etc.

Of course any custom build can use a non default value.

-Andi