[Lustre-discuss] Transparent Huge Pages?

Johann Lombardi johann at whamcloud.com
Mon May 7 02:03:05 PDT 2012

On Sat, May 05, 2012 at 12:07:15AM -0600, Andreas Dilger wrote:
> On 2012-05-03, at 8:30 AM, Kent Engström wrote:
> > A quick question: does the Lustre client version 1.8.x and/or 2.x
> > running on RHEL 6 support Transparent Huge Pages? Or do you need to turn
> > that feature off?
> I don't know for sure, but you could check the kernel configs we use, in lustre/kernel_patches/kernel_configs/ to see if it is enabled by default.

AFAIK, transparent huge pages support is enabled by default in the RHEL6 kernel, so we have this feature already enabled on RHEL6 lustre clients.
That said, we had to disable page migration (see LU-130) since we need to implement our own page migration handler.

Johann Lombardi
Whamcloud, Inc.

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