Messages in this thread | | | Date | Wed, 22 Sep 1999 10:08:24 -0700 | From | "David S. Miller" <> | Subject | Re: [patch] hashtable sizes for icache and dcache |
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Date: Wed, 22 Sep 1999 18:37:11 +0200 (CEST) From: Andrea Arcangeli <andrea@suse.de>
On Wed, 22 Sep 1999, David S. Miller wrote:
>and TCP, with greatly improved hash functions for several of those.
The buffer hash you are using looks very slow in computing the hash even if it may be the fairest in the math world.
It's 10 instructions, cut me a break, cache/tlb misses on load instructions due to a mediocre hash cost several orders of magnitude more than these 5 measly cpu cycles.
"very slow" indeed...
Later, David S. Miller davem@redhat.com
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