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    SubjectRe: Question about memory usage in 2.4 vs 2.2
    On Tue, 20 Mar 2001, Josh Grebe wrote:

    > slabinfo reports:
    > inode_cache 189974 243512 480 30439 30439 1 : 124 62
    > dentry_cache 201179 341940 128 11398 11398 1 : 252 126
    <name> <used> <allocd> | <used> <allocd>
    <in objects> <size> <in pages>

    > However, I am hard pressed to find documentation on how to actually
    > read this data, especially on a SMP box. Could someone give me a brief
    > runwdown?

    See above. The columns further to the right are debugging info.

    > Also, if this memory is cached, wouldn't it make sense if it were
    > reported as part of the total cached memory in /proc/meminfo?

    I'd definately like to see this. It would be great if somebody
    would sit down and implement this. <hint> <hint>

    > And can this behavior be tuned so that it uses less of the overall
    > memory?

    This isn't currently possible. Also, I suspect what we really want
    for most situations is a way to better balance between the different
    uses of memory. Again, patches are welcome (I haven't figured out a
    way to take care of this balancing yet ... maybe we DO want some way
    of limiting memory usage of each subsystem??).


    Virtual memory is like a game you can't win;
    However, without VM there's truly nothing to lose...

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