Messages in this thread | | | Date | Thu, 17 May 2012 09:11:30 -0400 | From | Rik van Riel <> | Subject | Re: [patch 0/5] refault distance-based file cache sizing |
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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.
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