Date: Fri, 5 Apr 1996 15:31:11 -0500 (EST) From: Marc Ramirez <mrami@mramirez.sy.yale.edu> To: JULIAN Elischer <julian@ref.tfs.com> Cc: asami@cs.berkeley.edu, current@freebsd.org, nisha@cs.berkeley.edu, tege@matematik.su.se, hasty@rah.star-gate.com Subject: Re: fast memory copy for large data sizes Message-ID: <Pine.BSF.3.91.960405152544.2754C-100000@mramirez.sy.yale.edu> In-Reply-To: <199604052011.MAA13929@ref.tfs.com>
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On Fri, 5 Apr 1996, JULIAN Elischer wrote:
> > sh runtests
> > size libc ours
> > 32 7.629395 MB/s 7.629395 MB/s
> > 64 12.207031 MB/s 4.695012 MB/s
> [...]
> > 2097152 12.164192 MB/s 7.725020 MB/s
> > 4194304 12.290410 MB/s 7.719504 MB/s
> > mrami[~/bcopy]$
>
> these tests SEEM to be indicating that the bcopy in libc
> is already better! or am I misreading something?
Well, remember, my chip isn't even an Intel part! But you must be
careful which chips you activate it with; I can imagine the FPbcopy
really sucking on a NexGen 586 with emulated FP...
Marc.
--
Encyclopedia Salesmen:
Invite them all in. Nip out the back door. Phone the police
and tell them your house is being burgled.
-- Mike Harding, "The Armchair Anarchist's Almanac"
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