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Date:      Sun, 3 Aug 1997 13:37:28 -0700 (MST)
From:      Terry Lambert <terry@lambert.org>
To:        tony@dell.com (Tony Overfield)
Cc:        cjs@portal.ca, freebsd@atipa.com, tom@sdf.com, hackers@FreeBSD.ORG
Subject:   Re: Pentium II?
Message-ID:  <199708032037.NAA02155@phaeton.artisoft.com>
In-Reply-To: <3.0.2.32.19970803041915.006a69e4@bugs.us.dell.com> from "Tony Overfield" at Aug 3, 97 04:19:15 am

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> >Do you have any benchmarks that indicate this? 
> 
> I think many of the benchmarks indicate this.  The benchmarks show, when 
> run at the same clock frequency, that the Pentium II runs at speeds 
> comparable to the Pentium Pro, even though the L2 cache is running at 
> half-speed.  Many folks had claimed that the Pentium II would be much 
> slower because of the half-speed L2 cache.

This would probably be true for single-tasking OS's, or non-preemptive
multitasking OS's, like Network Appliance's servers or NetWare servers.

For preemptive OS's, the cache is much less important, since the
locality is much less coherent.

So for benchmarks on FreeBSD, I think Tony is probably on the money.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.



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