On 10/23/2017 03:10 PM, Dave Hansen wrote:
> On 10/03/2017 04:56 PM, Mike Kravetz wrote:
>> mmap(MAP_CONTIG) would have the following semantics:
>> - The entire mapping (length size) would be backed by physically contiguous
>> pages.
>> - If 'length' physically contiguous pages can not be
On 10/23/2017 03:10 PM, Dave Hansen wrote:
> On 10/03/2017 04:56 PM, Mike Kravetz wrote:
>> mmap(MAP_CONTIG) would have the following semantics:
>> - The entire mapping (length size) would be backed by physically contiguous
>> pages.
>> - If 'length' physically contiguous pages can not be
On 10/03/2017 04:56 PM, Mike Kravetz wrote:
> mmap(MAP_CONTIG) would have the following semantics:
> - The entire mapping (length size) would be backed by physically contiguous
> pages.
> - If 'length' physically contiguous pages can not be allocated, then mmap
> will fail.
> - MAP_CONTIG only
On 10/03/2017 04:56 PM, Mike Kravetz wrote:
> mmap(MAP_CONTIG) would have the following semantics:
> - The entire mapping (length size) would be backed by physically contiguous
> pages.
> - If 'length' physically contiguous pages can not be allocated, then mmap
> will fail.
> - MAP_CONTIG only
On Thu, 5 Oct 2017, Vlastimil Babka wrote:
> On 10/04/2017 01:56 AM, Mike Kravetz wrote:
> > At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
> > titled 'User space contiguous memory allocation for DMA' [1]. The slides
> Hm I didn't find slides on that link, are they
On Thu, 5 Oct 2017, Vlastimil Babka wrote:
> On 10/04/2017 01:56 AM, Mike Kravetz wrote:
> > At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
> > titled 'User space contiguous memory allocation for DMA' [1]. The slides
> Hm I didn't find slides on that link, are they
On 10/04/2017 01:56 AM, Mike Kravetz wrote:
Hi,
> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
> titled 'User space contiguous memory allocation for DMA' [1]. The slides
Hm I didn't find slides on that link, are they available?
> point out the performance
On 10/04/2017 01:56 AM, Mike Kravetz wrote:
Hi,
> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
> titled 'User space contiguous memory allocation for DMA' [1]. The slides
Hm I didn't find slides on that link, are they available?
> point out the performance
On 10/04/2017 10:08 AM, Mike Kravetz wrote:
> On 10/04/2017 04:54 AM, Michal Nazarewicz wrote:
>> On Tue, Oct 03 2017, Mike Kravetz wrote:
>>> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
>>> titled 'User space contiguous memory allocation for DMA' [1]. The slides
On 10/04/2017 10:08 AM, Mike Kravetz wrote:
> On 10/04/2017 04:54 AM, Michal Nazarewicz wrote:
>> On Tue, Oct 03 2017, Mike Kravetz wrote:
>>> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
>>> titled 'User space contiguous memory allocation for DMA' [1]. The slides
On 10/04/2017 09:05 AM, Christopher Lameter wrote:
> On Wed, 4 Oct 2017, Anshuman Khandual wrote:
>
>>> - Using 'pre-allocated' pages in the fault paths may be intrusive.
>>
>> But we have already faulted in all of them for the mapping and they
>> are also locked. Hence there should not be any
On 10/04/2017 09:05 AM, Christopher Lameter wrote:
> On Wed, 4 Oct 2017, Anshuman Khandual wrote:
>
>>> - Using 'pre-allocated' pages in the fault paths may be intrusive.
>>
>> But we have already faulted in all of them for the mapping and they
>> are also locked. Hence there should not be any
On 10/04/2017 06:49 AM, Anshuman Khandual wrote:
> On 10/04/2017 05:26 AM, Mike Kravetz wrote:
>> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
>> titled 'User space contiguous memory allocation for DMA' [1]. The slides
>> point out the performance benefits of
On 10/04/2017 06:49 AM, Anshuman Khandual wrote:
> On 10/04/2017 05:26 AM, Mike Kravetz wrote:
>> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
>> titled 'User space contiguous memory allocation for DMA' [1]. The slides
>> point out the performance benefits of
On 10/04/2017 04:54 AM, Michal Nazarewicz wrote:
> On Tue, Oct 03 2017, Mike Kravetz wrote:
>> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
>> titled 'User space contiguous memory allocation for DMA' [1]. The slides
>> point out the performance benefits of devices
On 10/04/2017 04:54 AM, Michal Nazarewicz wrote:
> On Tue, Oct 03 2017, Mike Kravetz wrote:
>> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
>> titled 'User space contiguous memory allocation for DMA' [1]. The slides
>> point out the performance benefits of devices
On Wed, 4 Oct 2017, Anshuman Khandual wrote:
> > - Using 'pre-allocated' pages in the fault paths may be intrusive.
>
> But we have already faulted in all of them for the mapping and they
> are also locked. Hence there should not be any page faults any more
> for the VMA. Am I missing something
On Wed, 4 Oct 2017, Anshuman Khandual wrote:
> > - Using 'pre-allocated' pages in the fault paths may be intrusive.
>
> But we have already faulted in all of them for the mapping and they
> are also locked. Hence there should not be any page faults any more
> for the VMA. Am I missing something
On 10/04/2017 05:26 AM, Mike Kravetz wrote:
> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
> titled 'User space contiguous memory allocation for DMA' [1]. The slides
> point out the performance benefits of devices that can take advantage of
> larger physically
On 10/04/2017 05:26 AM, Mike Kravetz wrote:
> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
> titled 'User space contiguous memory allocation for DMA' [1]. The slides
> point out the performance benefits of devices that can take advantage of
> larger physically
On Tue, Oct 03 2017, Mike Kravetz wrote:
> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
> titled 'User space contiguous memory allocation for DMA' [1]. The slides
> point out the performance benefits of devices that can take advantage of
> larger physically
On Tue, Oct 03 2017, Mike Kravetz wrote:
> At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
> titled 'User space contiguous memory allocation for DMA' [1]. The slides
> point out the performance benefits of devices that can take advantage of
> larger physically
At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
titled 'User space contiguous memory allocation for DMA' [1]. The slides
point out the performance benefits of devices that can take advantage of
larger physically contiguous areas.
When such physically contiguous
At Plumbers this year, Guy Shattah and Christoph Lameter gave a presentation
titled 'User space contiguous memory allocation for DMA' [1]. The slides
point out the performance benefits of devices that can take advantage of
larger physically contiguous areas.
When such physically contiguous
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