[PATCH] initial version of reference cache

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Hi all,

On Mon, Jul 28, 2008 at 4:09 PM, Chris Mason <chris.mason@xxxxxxxxxx> wrote:
> Yan and I are hammering this out a little, I've attached my current
> patches.
>
> I was seeing cache misses after long stress runs, which I think is
> coming from references on the higher levels of the tree making us skip
> some leaves while dropping the transaction that added them.
>
> My new version using a single cache per root, and should avoid these
> misses.

Just curious, what is the cache size and or eviction policy?
Is it LFU or LRU, fifo, something custom? Would ARC be a good policy
for this purpose?

Sorry if this is totally off-topic or clueless, just curious.. hell,
I'm not even shure what data/info/object is the cache for...

Kind regards,


--
Miguel Sousa Filipe
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