On 02/17/2013 12:19 AM, Ric Mason wrote:
> On 02/06/2013 10:17 AM, Minchan Kim wrote:
>> Zsmalloc has two methods 1) copy-based and 2) pte-based to access
>> allocations that span two pages. You can see history why we supported
>> two approach from [1].
>>
>> In summary, copy-based method is 3 time
ubject: Re: [PATCH v2] zsmalloc: Add Kconfig for enabling PTE method
>
> On 02/06/2013 10:17 AM, Minchan Kim wrote:
> > Zsmalloc has two methods 1) copy-based and 2) pte-based to access
> > allocations that span two pages. You can see history why we supported
> > two appr
On 02/06/2013 10:17 AM, Minchan Kim wrote:
Zsmalloc has two methods 1) copy-based and 2) pte-based to access
allocations that span two pages. You can see history why we supported
two approach from [1].
In summary, copy-based method is 3 times fater in x86 while pte-based
is 6 times faster in ARM
On Wed, Feb 06, 2013 at 10:47:16AM -0600, Seth Jennings wrote:
> On 02/05/2013 08:17 PM, Minchan Kim wrote:
> > Zsmalloc has two methods 1) copy-based and 2) pte-based to access
> > allocations that span two pages. You can see history why we supported
> > two approach from [1].
> >
> > In summary,
On 02/05/2013 08:17 PM, Minchan Kim wrote:
> Zsmalloc has two methods 1) copy-based and 2) pte-based to access
> allocations that span two pages. You can see history why we supported
> two approach from [1].
>
> In summary, copy-based method is 3 times fater in x86 while pte-based
> is 6 times fas
On Tue, Feb 05, 2013 at 06:28:54PM -0800, Greg Kroah-Hartman wrote:
> On Wed, Feb 06, 2013 at 11:17:08AM +0900, Minchan Kim wrote:
> > diff --git a/drivers/staging/zsmalloc/Kconfig
> > b/drivers/staging/zsmalloc/Kconfig
> > index 9084565..232b3b6 100644
> > --- a/drivers/staging/zsmalloc/Kconfig
>
On Wed, Feb 06, 2013 at 11:17:08AM +0900, Minchan Kim wrote:
> diff --git a/drivers/staging/zsmalloc/Kconfig
> b/drivers/staging/zsmalloc/Kconfig
> index 9084565..232b3b6 100644
> --- a/drivers/staging/zsmalloc/Kconfig
> +++ b/drivers/staging/zsmalloc/Kconfig
> @@ -8,3 +8,15 @@ config ZSMALLOC
>
Zsmalloc has two methods 1) copy-based and 2) pte-based to access
allocations that span two pages. You can see history why we supported
two approach from [1].
In summary, copy-based method is 3 times fater in x86 while pte-based
is 6 times faster in ARM.
But it was bad choice that adding hard cod
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