svn commit: r233011 - head/sys/powerpc/aim

[Nathan Whitehorn]

On 03/15/12 17:18, Alan Cox wrote:
> On 3/15/2012 2:36 PM, Nathan Whitehorn wrote:
>> Author: nwhitehorn
>> Date: Thu Mar 15 19:36:52 2012
>> New Revision: 233011
>> URL: http://svn.freebsd.org/changeset/base/233011
>>
>> Log:
>>    Improve algorithm for deciding whether to loop through all process 
>> pages
>>    or look them up individually in pmap_remove() and apply the same 
>> logic
>>    in the other ranged operation (pmap_protect). This speeds up make
>>    installworld by a factor of 2 on powerpc64.
>>
>>    MFC after:    1 week
>>
>> Modified:
>>    head/sys/powerpc/aim/mmu_oea64.c
>>
>
> As an additional, related optimization, you should look into 
> implementing pmap_remove_pages().
>
> Alan
>

Thanks! I didn't know about that one. Is there a reason it isn't called 
at the end of vm_pageout_map_deactivate_pages(), which seems to 
deactivate all pages with pmap_remove()?
-Nathan