Thread (3 messages) 3 messages, 2 authors, 2002-11-27

Re: 2.5.49-mm2

From: Rik van Riel <hidden>
Date: 2002-11-27 11:31:38
Also in: lkml

On Wed, 27 Nov 2002, Andrew Morton wrote:
+pf_memdie.patch

 Fix the PF_MEMDIE logic
The first part of the patch looks suspicious. If PF_MEMALLOC
is set we shouldn't be allowed to go into try_to_free_pages()
in the first place, should we ?
+writeback-handle-memory-backed.patch

 Don't try to write out memory-backed filesystems at all
Neat. Exactly the thing I was looking for for an O(1) VM
optimisation, good to know it's possible in 2.5 ;)
simplified-vm-throttling.patch
  Remove the final per-page throttling site in the VM

page-reclaim-motion.patch
  Move reclaimable pages to the tail ofthe inactive list on IO completion
Very nice, though if you're worried about effective reclaiming
you might be interested in Arjan's O(1) VM code, which I'll
probably forward-port to 2.5 once I've got it properly tuned.
activate-unreleaseable-pages.patch
  Move unreleasable pages onto the active list
Interesting, does this make much difference ?

cheers,

Rik
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