From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Steven Noonan <steven@uplinklabs.net>,
Mel Gorman <mgorman@suse.de>,
Cyrill Gorcunov <gorcunov@gmail.com>,
David Vrabel <david.vrabel@citrix.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>, Rik van Riel <riel@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Linux-MM <linux-mm@kvack.org>, Linux-X86 <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Pavel Emelyanov <xemul@parallels.com>
Subject: Re: [PATCH 2/3] x86: Define _PAGE_NUMA with unused physical address bits PMD and PTE levels
Date: Tue, 8 Apr 2014 12:02:50 -0400 [thread overview]
Message-ID: <20140408160250.GE31554@phenom.dumpdata.com> (raw)
In-Reply-To: <e9801da2-3aa4-4c23-9a64-90c890b9ebbc@email.android.com>
.snip..
> >>> David Vrabel has a patchset which I presumed would be pulled through
> >the
> >>> Xen tree this merge window:
> >>>
> >>> [PATCHv5 0/8] x86/xen: fixes for mapping high MMIO regions (and
> >remove
> >>> _PAGE_IOMAP)
> >>>
> >>> That frees up this bit.
> >>>
> >>
> >> Thanks, I was not aware of that patch. Based on it, I intend to
> >force
> >> automatic NUMA balancing to depend on !XEN and see what the reaction
> >is. If
> >> support for Xen is really required then it potentially be re-enabled
> >if/when
> >> that series is merged assuming they do not need the bit for something
> >else.
> >>
> >
> >Amazon EC2 does have large memory instance types with NUMA exposed to
> >the guest (e.g. c3.8xlarge, i2.8xlarge, etc), so it'd be preferable
> >(to me anyway) if we didn't require !XEN.
What about the patch that David Vrabel posted:
http://osdir.com/ml/general/2014-03/msg41979.html
Has anybody taken it for a spin?
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WARNING: multiple messages have this Message-ID (diff)
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Steven Noonan <steven@uplinklabs.net>,
Mel Gorman <mgorman@suse.de>,
Cyrill Gorcunov <gorcunov@gmail.com>,
David Vrabel <david.vrabel@citrix.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>, Rik van Riel <riel@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Linux-MM <linux-mm@kvack.org>, Linux-X86 <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Pavel Emelyanov <xemul@parallels.com>
Subject: Re: [PATCH 2/3] x86: Define _PAGE_NUMA with unused physical address bits PMD and PTE levels
Date: Tue, 8 Apr 2014 12:02:50 -0400 [thread overview]
Message-ID: <20140408160250.GE31554@phenom.dumpdata.com> (raw)
In-Reply-To: <e9801da2-3aa4-4c23-9a64-90c890b9ebbc@email.android.com>
.snip..
> >>> David Vrabel has a patchset which I presumed would be pulled through
> >the
> >>> Xen tree this merge window:
> >>>
> >>> [PATCHv5 0/8] x86/xen: fixes for mapping high MMIO regions (and
> >remove
> >>> _PAGE_IOMAP)
> >>>
> >>> That frees up this bit.
> >>>
> >>
> >> Thanks, I was not aware of that patch. Based on it, I intend to
> >force
> >> automatic NUMA balancing to depend on !XEN and see what the reaction
> >is. If
> >> support for Xen is really required then it potentially be re-enabled
> >if/when
> >> that series is merged assuming they do not need the bit for something
> >else.
> >>
> >
> >Amazon EC2 does have large memory instance types with NUMA exposed to
> >the guest (e.g. c3.8xlarge, i2.8xlarge, etc), so it'd be preferable
> >(to me anyway) if we didn't require !XEN.
What about the patch that David Vrabel posted:
http://osdir.com/ml/general/2014-03/msg41979.html
Has anybody taken it for a spin?
next prev parent reply other threads:[~2014-04-08 16:03 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-07 15:10 [RFC PATCH 0/3] Use an alternative to _PAGE_PROTNONE for _PAGE_NUMA Mel Gorman
2014-04-07 15:10 ` Mel Gorman
2014-04-07 15:10 ` [PATCH 1/3] x86: Require x86-64 for automatic NUMA balancing Mel Gorman
2014-04-07 15:10 ` Mel Gorman
2014-04-07 15:10 ` [PATCH 2/3] x86: Define _PAGE_NUMA with unused physical address bits PMD and PTE levels Mel Gorman
2014-04-07 15:10 ` Mel Gorman
2014-04-07 15:32 ` David Vrabel
2014-04-07 15:32 ` David Vrabel
2014-04-07 15:49 ` Mel Gorman
2014-04-07 15:49 ` Mel Gorman
2014-04-07 16:19 ` Cyrill Gorcunov
2014-04-07 16:19 ` Cyrill Gorcunov
2014-04-07 18:28 ` Mel Gorman
2014-04-07 18:28 ` Mel Gorman
2014-04-07 19:16 ` Cyrill Gorcunov
2014-04-07 19:16 ` Cyrill Gorcunov
2014-04-07 19:27 ` H. Peter Anvin
2014-04-07 19:27 ` H. Peter Anvin
2014-04-07 19:36 ` Cyrill Gorcunov
2014-04-07 19:36 ` Cyrill Gorcunov
2014-04-07 19:42 ` H. Peter Anvin
2014-04-07 19:42 ` H. Peter Anvin
2014-04-07 21:25 ` Mel Gorman
2014-04-07 21:25 ` Mel Gorman
2014-04-08 4:04 ` Steven Noonan
2014-04-08 4:04 ` Steven Noonan
2014-04-08 15:16 ` H. Peter Anvin
2014-04-08 15:16 ` H. Peter Anvin
2014-04-08 16:02 ` Konrad Rzeszutek Wilk [this message]
2014-04-08 16:02 ` Konrad Rzeszutek Wilk
2014-04-08 16:16 ` H. Peter Anvin
2014-04-08 16:16 ` H. Peter Anvin
2014-04-08 16:47 ` Mel Gorman
2014-04-08 16:47 ` Mel Gorman
2014-04-08 16:50 ` David Vrabel
2014-04-08 16:50 ` David Vrabel
2014-04-08 16:51 ` Mel Gorman
2014-04-08 16:51 ` Mel Gorman
2014-04-09 15:18 ` Konrad Rzeszutek Wilk
2014-04-09 15:18 ` Konrad Rzeszutek Wilk
2014-04-09 15:39 ` Mel Gorman
2014-04-09 15:39 ` Mel Gorman
2014-04-08 20:51 ` Steven Noonan
2014-04-08 20:51 ` Steven Noonan
2014-04-08 20:59 ` H. Peter Anvin
2014-04-08 20:59 ` H. Peter Anvin
2014-04-09 15:04 ` Konrad Rzeszutek Wilk
2014-04-09 15:04 ` Konrad Rzeszutek Wilk
2014-04-09 15:09 ` Peter Zijlstra
2014-04-09 15:09 ` Peter Zijlstra
2014-04-08 9:31 ` David Vrabel
2014-04-08 9:31 ` David Vrabel
2014-04-07 21:19 ` Mel Gorman
2014-04-07 21:19 ` Mel Gorman
2014-04-07 17:37 ` Dave Hansen
2014-04-07 17:37 ` Dave Hansen
2014-04-07 15:10 ` [PATCH 3/3] mm: Allow FOLL_NUMA on FOLL_FORCE Mel Gorman
2014-04-07 15:10 ` Mel Gorman
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