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SubjectRe: [patch 0/5] refault distance-based file cache sizing
On 05/16/2012 01:25 AM, nai.xia wrote:
> Hi Johannes,
> Just out of curiosity(since I didn't study deep into the
> reclaiming algorithms), I can recall from here that around 2005,
> there was an(or some?) implementation of the "Clock-pro" algorithm
> which also have the idea of "reuse distance", but it seems that algo
> did not work well enough to get merged?

The main issue with clock-pro was scalability.

Johannes has managed to take the good parts of clock-pro,
and add it on top of our split lru VM, which lets us keep
the scalability, while still being able to deal with file
faults from beyond the inactive list.

All rights reversed

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