On Thu, 26 Jul 2007 11:20:25 +0200 Ingo Molnar <[email protected]> wrote:
> Once we give the kernel the knowledge that the dentry wont be used again
> by this app, the kernel can do a lot more intelligent decision and not
> baloon the dentry cache.
>
> ( we _do_ want to baloon the dentry cache otherwise - for things like
> "find" - having a fast VFS is important. But known-use-once things
> like the daily updatedb job can clearly be annotated properly. )
Mutter. /proc/sys/vm/vfs_cache_pressure has been there for what, three
years? Are any distros raising it during the updatedb run yet?
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