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SubjectRe: How do I make this thing stop laging? Reboot? Sounds like Windows!
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On 18 Jun 2003, you wrote in linux.kernel:

> rmoser wrote:
> [...]
>> Ten minutes later I get the brains to run top. It seems I have about
>> 50 MB in swap, and 54 MB free memory. So I wait ten minutes more.
>>
>> No change.
>>
>> % swapoff -a; swapon -a
>>
>> Fixes all my problems.
>>
>> Now this long story shows something: The kernel appears to be unable
>> to intelligently pull swap back into RAM. What gives?
>>
> Because the problem _is_ unsolvable. You want the kernel
> to go "oh, lots of free memory showed up, lets pull
> everything in from swap just in case someone might need it."


You might want to try Con Kolivas' patches on:
http://members.optusnet.com.au/ckolivas/kernel/

More specifically the 'swap prefetch' patch. From this FAQ:

--
Swap prefetching? If you have >10% free physical ram and any used swap it
will start swapping pages back into physical ram. Probably not of real
benefit but many people like this idea. I have a soft spot for it and like
using it.
--

The disadvantage is ofcourse that you will be using up more RAM than is
really necessary.
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