Messages in this thread | | | Date | Tue, 6 Apr 1999 19:16:12 +0200 (CEST) | From | Andrea Arcangeli <> | Subject | Re: [patch] arca-vm-2.2.5 |
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On Tue, 6 Apr 1999, Chuck Lever wrote:
>> We always, always use page-aligned lookups for the page cache. >> (Actually there is one exception: certain obsolete a.out binaries, which >> are demand paged with the pages beginning at offset 1K into the binary. >> We don't support cache coherency for those and we don't support them at >> all on filesystems with a >1k block size. It doesn't impact on the hash >> issue.) > >i guess i'm confused then. what good does this change do:
Hmm I think I misunderstood you point, Chuck. I thought you was complaining about the fact that some hash entry could be unused and other overloaded but I was just assuming that the offset is always page-aligned. I could write a simulation to check the hash function...
Andrea Arcangeli
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