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replaced by new patch from ..

replaced by new patch from ..

Posted Sep 29, 2005 23:24 UTC (Thu) by farnz (subscriber, #17727)
In reply to: replaced by new patch from .. by giraffedata
Parent article: Swap prefetching

AIUI, the big gain of Andrea's early write-out patch is that the VM has a strong preference for evicting clean pages (nearly free) over dirty (expensive I/O needed). Because Andrea's code stops streaming writes like cp from dirtying lots of one-use pages, it makes the pages that cp is dirtying much more attractive to the VM when it's hunting for freeable pages.

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