Christoph Lameter wrote:
1. First reclaiming non dirty pages. Dirty pages are deferred until reclaim
has reestablished the high marks. Then all the dirty pages (the laundry)
is written out.
That sounds like a horrendously bad idea. While one process
is busy freeing all the non dirty pages, other processes can
allocate those pages, leaving you with no memory to free up
the dirty pages!
How exactly are you planning to prevent that problem?
Also, writing out all the dirty pages at once seems like it
could hurt latency quite badly, especially on large systems.
--
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the best in the world, and those who believe it already is. Each group
calls the other unpatriotic.
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