Re: [OT] How to tune kernel to swap more often (video ram swap)

[Helge Hafting <helge.hafting@aitel.hist.no>]

Tomasz Torcz wrote:

>On Sun, Feb 05, 2006 at 12:10:02PM +0100, Eric Piel wrote:
>  
>
>>05.02.2006 11:04, Paweł Zadrąg wrote/a écrit:
>>    
>>
>>>Yo...
>>>
>>>In normal case, using harddisk as a swap space i should ask how to cut
>>>down swapping, or make swapping when idle, etc... My case is a little
>>>bit diffrent... I have a 256MB video card, while 240MB of it is used
>>>as a swap space. And the question is: how to tune kernel to swap more
>>>often. I known swapped memory must be copied back to ram before beeing
>>>used, so i'm looking for a reasonable tunning values...
>>>      
>>>
>>Am I correctly understanding that you are using your video card memory 
>>as a place to put swap? This sounds quite cool, how have you done this? 
>>Is there a driver which can report the video ram as a block device?
>>    
>>
>
> It's an old trick with MTD devices:
>http://hedera.linuxnews.pl/_news/2002/09/03/_long/1445.html
>  
>
Nice trick.  If you also have swapspace on disk, remember to
give the "mtd swap" higher priority in /etc/fstab.
That way, disk swapping will only happen when the mtd swap is full.

Helge Hafting