From: Lee Schermerhorn <lee.schermerhorn@hp.com>
To: linux-ia64@vger.kernel.org
Subject: RE: [PATCH 0/1] ia64: numa emulation
Date: Thu, 20 Oct 2005 20:58:57 +0000 [thread overview]
Message-ID: <1129841937.6182.49.camel@localhost.localdomain> (raw)
In-Reply-To: <1129840588.6182.36.camel@localhost.localdomain>
On Thu, 2005-10-20 at 13:52 -0700, Chen, Kenneth W wrote:
> Lee Schermerhorn wrote on Thursday, October 20, 2005 1:36 PM
> > Also, because of interaction of max order and huge tlb fs [hard
> > coded HPAGE_SHIFT_DEFAULT], I disable hugetlbfs when numa emulation
> > is configured.
>
> Hugetlbfs can still be safely enabled. The only downside is system
> won't be able to reserve any hugetlb page with the default size. Maybe
> it is senseless, but no harm is done here by enabling it.
OK. I wasn't sure, and didn't have need for hugetlbfs at the time, so I
just disabled it by default when emulation selected. One could always
override that default.
>
>
> > Back around 2.6.10, I recall seeing discussion of dynamically sizing
> > hugetlbfs based on max order. I haven't tracked this to see if it
> > went in. But, if it did, one could reenable hugetlbfs and adapted
> > to the reduced max order automatically.
>
> I have a patch does better than that. We can change the hugetlb page
> size at run time. I will clean up my patch and post it.
>
Cool. Sounds like a generic [!just ia64] patch, right?
Lee
next prev parent reply other threads:[~2005-10-20 20:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-20 20:36 [PATCH 0/1] ia64: numa emulation Lee Schermerhorn
2005-10-20 20:52 ` Chen, Kenneth W
2005-10-20 20:58 ` Lee Schermerhorn [this message]
2005-10-20 21:47 ` Chen, Kenneth W
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