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Bug#139838: dpkg: performance problem - package database hash size too small

Previously Colin Watson wrote:
> Investigation shows that the hash used to store available packages
> (lib/database.c) has 128 bins, and was last tuned with a sample set of
> 141 packages in total. Since there are now over 9000 binary packages in
> unstable, this could do with being tuned again.

Funny, Jason Gunthorpe said he made the exact same benchmark a while
ago and claimed it did not improve things at all. Looks like we do
have to look into the hashing.


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