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    SubjectRe: [PATCH 2.6.19-rc3] VFS: per-sb dentry lru list
    > Quick search maybe, but your patch adds 2 pointers to each dentry in the 
    > system... That's pretty expensive, as dentries are already using a *lot* of
    > ram.
    I don't see much problems with it... it is cache and it can be pruned if needed.
    Some time ago, for example, my patch introducing the same list for inodes
    was commited.

    > Maybe an alternative would be to not have anymore a global dentry_unused, but
    > only per-sb unused dentries lists ?
    I don't know global LRU implementation based on per-sb lists, do you?
    If someone suggest the algorithm for more or less fair global LRU
    based on non-global list we will implement it. However, so far,
    AFAICS there were problems with it.

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      Last update: 2006-10-30 16:29    [W:0.020 / U:12.032 seconds]
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