| [News] New Executive Update | ANN.lu |
| Posted on 25-Nov-2000 13:35 GMT by Christian Kemp | 64 comments
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Bill McEwen has posted a new Executive Update, where he hints that there might be a strong possibility of an AmigaOS 4.0, if sales of 3.9 are good enough, and announces that there will be more details and announcements at the Amiga World show in Cologne next month.
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| New Executive Update : Comment 50 of 64 | ANN.lu |
| Posted by Richie on 26-Nov-2000 23:00 GMT | In reply to Comment 46 (Ben Hermans/Hyperion):
From the register,
Reader John Welter of North West Group, a Canadian
Geomatics firm specialising in orthophotography -
stretching accurate photographs of the Earth's surface
over elevation models of the same area - volunteered us
some interesting information on his company's
experiences with an early P4 system.
When using the original code, a P4 system took a glacial
19 hours compared with just under 13 hours for a
933MHz PIII. But with code recompiled to use SSE2,
the P4 galloped through the test in a shade over seven
and a half hours.
"It all comes down to the fact that running today's code
the P4 is a dog," Welter told The Reg. "But once the
code is optimised for it then it really can wake up and
perform quite nicely.
Outperforming Alpha
"A P4 at 1.5Ghz is now faster when running optimised
code then our Alpha production boxes by a sizable
margin, where those same Alpha boxes outperformed all
our P3 based systems.
"Intel did not take the x87 FPU performance as a prime
design goal in the P4. They focused on the SSE/SSE2
unit much more and made sacrifices to the X87 FPU
side of things to gain more SSE2 performance. Some
may argue this was a bad trade-off but the improvements
they have managed on the SSE2 are very impressive.
"Geomatics is extremely CPU intensive and pretty much
100 per cent bound by CPU performance. For this
reason we obtained an early 1.5GHz P4 despite the
inflated costs in an attempt to determine how much
added performance it would give us in reducing our
production times.
Staggering
"The results are a bit staggering and maybe of interest to
you: Baseline: Intel OR840, PIII-933, 1GB RDRAM (4
x 256MB, 800MHz), 144Gb of RAID0 storage (4 x
36GB 10,000rpm U160 SCSI drives off an Adaptec
29160 controller)
"Process the "Calgary" test data set on this machine
using original binary: 12.8 Hrs.
"Intel 850 motherboard, P4-1.5GHz, rest of system
exactly the same as above. Process the "Calgary" test
data set on this machine using original binary: 19.4 Hrs.
"Process the "Calgary" test data set on this machine
using a recompiled P4 optimised binary (Intel's V5
compiler plug in for Visual Studio): 7.6 Hrs. (All
testing was done under Windows 2000 with SP1.)
"As you can see once SSE2 optimisation is enabled on
the P4 it can really cook performance-wise. But, when
using the old X87 FPU instructions it is a total dog that
even a Celeron could possibly outperform.
I don't know. But I would perfer a port of amigaOS to x86 not ppc
Hey if you don't like intel there's amd. with the ppc its wait for MOTO
and nothing else. BTW the most CPU intensive task i run is winUAE. |
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