Re: [RFC PATCH] fs: dcache: Delete the associated dentry when deleting a file

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On Sat, May 11, 2024 at 12:54:18AM -0400, Waiman Long wrote:
> I had suggested in the past to have a sysctl parameter to set a threshold on
> how many negative dentries (as a percentage of total system memory) are

Yes, but that's obviously bogus.  System memory is completely
uncorrelated with the optimum number of negative dentries to keep
around for workload performance.

Some multiple of "number of positive dentries" might make sense.





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