Messages in this thread | | | Subject | Re: arca-vm-8 [Re: [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm , improvement , [Re: 2.2.0 Bug summary]]] | From | (Eric W. Biederman) | Date | 06 Jan 1999 22:30:59 -0600 |
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>>>>> "LT" == Linus Torvalds <torvalds@transmeta.com> writes:
LT> Oh, well.. Based on what the arca-[678] patches did, there's now a pre-5 LT> out there. Not very similar, but it should incorporate the basic idea: LT> namely much more aggressively asynchronous swap-outs from a process LT> context.
LT> Comment away,
1) With your comments on PG_dirty/(what shrink_mmap should do) you have worked out what needs to happen for the mapped in memory case, and I haven't quite gotten there. Thank You.
2) I have tested using PG_dirty from shrink_mmap and it is a performance problem because it loses all locality of reference, and because it forces shrink_mmap into a dual role, of freeing and writing pages, which need seperate tuning.
Linus is this a case you feel is important to tune for 2.2? If so I would be happy to play with it.
Eric
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