flush a specific file from cache?
fry.kun at gmail.com
Wed Nov 10 19:04:16 UTC 2010
Is there a way to flush specific files from cache?
I already know of the trick to flush all caches (sync && echo 3 >
/proc/sys/vm/drop_caches), but that's not quite what I want
More specifically, I have a redis server (a noSQL database) which dumps
a few gigs of data to the HDD every few hours. The data is dumped as a
backup and is not necessary for normal redis operation. The problem is
that I see a pretty big chunk of RAM used for caches, but the system for
some crazy reason decides that it's time to start swapping out some
pages (even though I have vm.swappiness=0).
Anything I can do besides flushing everything?
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