Re: [patch] hashtable sizes for icache and dcache

Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 22 Sep 1999 15:13:12 +0100 (BST)

> to the stock kernel to get better performances. It increase the ihash size
> from 256 buckets to 16000 buckets that means 131k for the ihash. I enalrged also
> the dhash from 1024 buckets to 16000 buckets as there are really lots of
> hash entries.

That'll be nice on a 4Mb palmtop.

> I believe it doesn't worth to save 200k of RAM and to go slow (note
> the binary image won't bloat as the hash is allocated in the .bss
> section).

I don't believe we can go around throwing 200K of ram away. A few of those
and its starting to bite 16-32Mb boxes.

Please look at DaveM's hash patches for 2.2.x

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