I definitely agree we should do that, our current performance on the
FS CacheLoader is not very interesting.. ok it has never been a
priority, still it shouldn't be hard writing one following these basic
principles.

As I suggested in London a while ago, we could learn from Lucene as
well: uso NIO or MMAP, and the basic rule is to never "change"
existing segments but rewrite optimal ones in a new file, then swap
them atomically and delete the old one.

As antirez states too, that allows you to take good performance even
from rotating-platter disks. Actually I'm told that rotating disks can
still be faster than SSDs on continual writes/reads, as long as you
don't have it change the head position.. for Infinispan that means
that ideally it should not perform Cache *load* operations from the
same drive.


On 26 March 2012 18:36, Emmanuel Bernard <emmanuel@hibernate.org> wrote:

http://antirez.com/post/redis-persistence-demystified.html

Anyone interested in writing a cachestore following these rules?

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