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    SubjectRe: BK performance tip (22x faster)
    On Wed, Jul 05, 2000 at 11:28:08PM +0100, Alex Buell wrote:
    > On Wed, 5 Jul 2000, Richard Gooch wrote:
    >
    > > > 2.3/4 kernels use a SLAB cache for inodes, instead of an ad hoc
    > > > cache. the old limit was used to determine when to reap inodes.
    > > > the new system reaps them automatically when system memory is short.
    > >
    > > Good. That's what I was hoping for.
    >
    > Does this means buffer cache corruption causing Linux 2.2.x to lose its
    > lunch are a thing of the past? 'Cause I've just had my machine die twice
    > in the last two days due to this thing!
    >
    > I'd love to see self-correcting software ECC for caches.

    Hmm. BK has a sort of lame checksum that it uses for integrity and we
    used to see checksum failures frequently until I stopped buying memory
    without ECC. This same lame checksum was what found the cache aliasing
    bug in SPARC/Linux.

    At any rate, I have been using 2.2.15-pre9 for months without any errors
    so are you sure that it is buffer cache corruption and not bad memory
    dimms? If you are sure, I want to know.
    --
    ---
    Larry McVoy lm@bitmover.com http://www.bitmover.com/lm

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