"Kevin Burton" <burton@tailrank.com> writes:
quoted text
>
> What I want to do is either disable the page cache entirely or just
> tell the OS to cache at max 10% of the available memory.

FYI page cache includes the memory your program uses. No page 
cache would mean no user space, 10% would mean user space uses only
10%. One way that would fulfil your request literally is to boot with 
mem=<10% of your ram>, but I guess you don't really want that.

If you don't want your application to be swapped at all you
should probably investigate mlock(2)/mlockall(2)

-Andi
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