Re: [PATCH 2/5] mm improvements

Nick Piggin
2004-02-05T02:18:21Z

Rik van Riel wrote:

>On Wed, 4 Feb 2004, Andrew Morton wrote:
>
>
>>Nick Piggin <piggin@cyberone.com.au> wrote:
>>
>>
>>> > 2/5: vm-dont-rotate-active-list.patch
>>> > Nikita's patch to keep more page ordering info in the active list.
>>> > Also should improve system time due to less useless scanning
>>> > Helps swapping loads significantly.
>>>
>>>
>>It bugs me that this improvement is also applicable to 2.4. if it makes
>>the same improvement there, we're still behind.
>>
>>
>
>I suspect 2.4 won't see the gains from this, since active/inactive
>list location is hardly relevant for mapped pages there, due to the
>page table scanning algorithm.
>
>
>

Yeah you're right.