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Alexander E. Patrakov wrote:
> John Richard Moser wrote:
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>> I'm not quite sure what I'm doing or when I have time, but I'm looking
>> into writing in some hooks and a compression routine to manage
>> compressed memory. I have the following considerations:
>>
>> - Compressed memory should become "Swap." This means the kernel would
>> report memory used for compressed storage as used swap. At boot it
>> would reflect 0K swap; when there are 1024KiB of pages compressed in
>> memory, 1024KiB of additional "swap" is reported, all used.
>> - I need to stop the kernel when it's about to swap. This should be
>> done when it's decided that either invalidating disk cache or
>> swapping is the best course of action, and what to do with what. At
>> this point I'll have to be able to see what the kernel wants to swap
>> out and tell it that it's taken care of.
>> - I need to catch invalid pagefaults that look for swap, as well as the
>> disk cache mechanism. I'll be adding stuff to compress disk cache,
>> so disk cache might need to be "swapped in" effectively.
>
> If you are OK with using a ery old 2.4.18 kernel, look at
> http://linuxcompressed.sourceforge.net/
>
I'm actually looking to submit to mainline in the end ;P It'd be a very
good permenant feature. RAM is cheap, but CPU is even cheaper; if I buy
a gig of RAM and get 200M free, woohoo?
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