Messages in this thread |  | | | Date | Tue, 30 Oct 2001 18:06:16 +0100 | | From | Andrea Arcangeli <> | | Subject | Re: need help interpreting 'free' output. |
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On Tue, Oct 30, 2001 at 08:52:58AM -0800, Linus Torvalds wrote: > So in the short range, I haven't come up with any really good approaches, > but I suspect I'll just have to move the shrink_[di]cache() back to the > caller, which will at least shrink them on swapouts (a bit too much, I > think, but on the other hand maybe not).
Agreed.
It is still interesting to hear if it makes a big performance differece under swap though. In particular it would be very nice to keep inodes with pagecache in it out of the unused-inode-list, but it would need additional bitkeeping in inode.c.
I'm also wondering why you dropped the early-cow for the write swapins, just to avoid managing the anon pages in the lru in do_swap_page and to have the logic only in once place? I kept the early-cow logic so I only get 1 page fault for every write-swapped-in pages.
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