From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: Dan Williams <dan.j.williams@intel.com>, akpm@linux-foundation.org
Cc: linux-mm@kvack.org, Dave Hansen <dave.hansen@intel.com>,
Christoph Hellwig <hch@lst.de>,
linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org
Subject: Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps
Date: Fri, 11 Nov 2016 09:42:18 +0530 [thread overview]
Message-ID: <58254522.70008@linux.vnet.ibm.com> (raw)
In-Reply-To: <147881591739.39198.1358237993213024627.stgit@dwillia2-desk3.amr.corp.intel.com>
On 11/11/2016 03:41 AM, Dan Williams wrote:
> ZONE_DEVICE pages are mapped into a process via the filesystem-dax and
> device-dax mechanisms. There are also proposals to use ZONE_DEVICE
> pages for other usages outside of dax. Add statistics to smaps so
> applications can debug that they are obtaining the mappings they expect,
> or otherwise accounting them.
This might also help when we will have ZONE_DEVICE based solution for
HMM based device memory.
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Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm
WARNING: multiple messages have this Message-ID (diff)
From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: Dan Williams <dan.j.williams@intel.com>, akpm@linux-foundation.org
Cc: Dave Hansen <dave.hansen@intel.com>,
linux-nvdimm@lists.01.org, Christoph Hellwig <hch@lst.de>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps
Date: Fri, 11 Nov 2016 09:42:18 +0530 [thread overview]
Message-ID: <58254522.70008@linux.vnet.ibm.com> (raw)
In-Reply-To: <147881591739.39198.1358237993213024627.stgit@dwillia2-desk3.amr.corp.intel.com>
On 11/11/2016 03:41 AM, Dan Williams wrote:
> ZONE_DEVICE pages are mapped into a process via the filesystem-dax and
> device-dax mechanisms. There are also proposals to use ZONE_DEVICE
> pages for other usages outside of dax. Add statistics to smaps so
> applications can debug that they are obtaining the mappings they expect,
> or otherwise accounting them.
This might also help when we will have ZONE_DEVICE based solution for
HMM based device memory.
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WARNING: multiple messages have this Message-ID (diff)
From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: Dan Williams <dan.j.williams@intel.com>, akpm@linux-foundation.org
Cc: Dave Hansen <dave.hansen@intel.com>,
linux-nvdimm@ml01.01.org, Christoph Hellwig <hch@lst.de>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps
Date: Fri, 11 Nov 2016 09:42:18 +0530 [thread overview]
Message-ID: <58254522.70008@linux.vnet.ibm.com> (raw)
In-Reply-To: <147881591739.39198.1358237993213024627.stgit@dwillia2-desk3.amr.corp.intel.com>
On 11/11/2016 03:41 AM, Dan Williams wrote:
> ZONE_DEVICE pages are mapped into a process via the filesystem-dax and
> device-dax mechanisms. There are also proposals to use ZONE_DEVICE
> pages for other usages outside of dax. Add statistics to smaps so
> applications can debug that they are obtaining the mappings they expect,
> or otherwise accounting them.
This might also help when we will have ZONE_DEVICE based solution for
HMM based device memory.
next prev parent reply other threads:[~2016-11-11 4:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-10 22:11 [PATCH] mm: add ZONE_DEVICE statistics to smaps Dan Williams
2016-11-10 22:11 ` Dan Williams
2016-11-10 22:11 ` Dan Williams
2016-11-11 4:12 ` Anshuman Khandual [this message]
2016-11-11 4:12 ` Anshuman Khandual
2016-11-11 4:12 ` Anshuman Khandual
2016-11-15 3:14 ` Dan Williams
2016-11-15 3:14 ` Dan Williams
2016-11-15 3:14 ` Dan Williams
2016-11-15 18:50 ` Christoph Hellwig
2016-11-15 18:50 ` Christoph Hellwig
[not found] ` <147881591739.39198.1358237993213024627.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-11-16 0:04 ` Andrew Morton
2016-11-16 0:04 ` Andrew Morton
2016-11-16 0:04 ` Andrew Morton
2016-11-16 0:15 ` Dave Hansen
2016-11-16 0:15 ` Dave Hansen
2016-11-16 0:15 ` Dave Hansen
2016-11-16 0:48 ` Dan Williams
2016-11-16 0:48 ` Dan Williams
2016-11-16 0:48 ` Dan Williams
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