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( 19 comments — Leave a comment )
Aug. 22nd, 2003 05:27 am (UTC)
I'll second that ...



(Deleted comment)
Aug. 22nd, 2003 05:47 am (UTC)
Re: YAY I'll 3rd it
i'm trying to do what would be a ten min job on a nice P4 machine on a FUCKING AMD DURON LAPTOP!!!!!!!!!!!!
(Deleted comment)
Aug. 22nd, 2003 06:15 am (UTC)
Re: YAY I'll 3rd it
Free up some memory and processor clocks - It would be a bit faster if you weren't browsing livejournal you fool! :-p
Aug. 22nd, 2003 08:42 am (UTC)
Re: YAY I'll 3rd it
it was doing my head in BEFORE i started browsing livejournal.
Anyway. I wasn't BROWSING, i needed to VENT.

So Ner.

Big Fat One too...
Aug. 22nd, 2003 02:07 pm (UTC)
What's the job?

I'd take a Duron over a P4 (at equivalent clock speeds) for a fair number of jobs. The more recent Durons have an identical core to the Athlon, complete with three FPUs (Floating Point Units for the non-techie), versus 1 FPU in the P4. So anything with lots of floating point calculations will tend to run faster on the Duron.

In fact, I've just finished building a machine for a mate of mine, to go in his recording studio. It's got dual Duron 1.3GHz for storming Cubase performance, and an Adaptec IDE RAID card (full-length, over a foot long!) to up disk I/O for Soundforge. It goes like the proverbial shit off a shovel, and the processors were £30 each.

Personally I'd like one of the new Macs with the PPC970 64-bit processors, but that might have to wait a while. (like 'till people start replacing them and they show up on eBay).

Having said that, I've no doubt you're currently annoyed, so I'll shut up now.
Aug. 22nd, 2003 03:00 pm (UTC)
The computers in question were:

A) 1GHz Duron + 96mb 100MHz RAM + 33.6 modem :P
B) 3GHz P4 + 512mb 424MHz RAM + 1mb cable

A P4 of equivalent clock speed to a Duron? Durons stop at 1.3GHz off the shelf and P4's only start at 2GHz. Clock equivalent or not the only job the Duron would be better at is *sucking* :)
Aug. 22nd, 2003 04:34 pm (UTC)
Sorry to turn this into a pedantic techie rant, but:

P4's only start at 2GHz

An interesting statement, however Intel's own executive summary clearly states (on page 11):

"Available at speeds ranging from 1.30 to 3.20GHz"

Practically, I can see why the speed difference occurs with the machines you've specified, but it's by no means necessarily the fault of the processor.

BTW, this post is mainly the result of insomnia brought on by nearly killing somebody, cf my LJ. Please don't take it too seriously, I'm not after another argument today.
Aug. 22nd, 2003 05:52 pm (UTC)
"Available at speeds ranging from 1.30 to 3.20GHz"
True, so they are. Other Intel documents give the impression the series begins at 2.0A. http://www.intel.com/products/desktop/processors/pentium4/index.htm?iid=ipp_desk+proc_p4& or http://www.intel.com/design/Pentium4/prodbref/index.htm?iid=ipp_dlc_procp4p+prod_brief&

Having never seen a sub-2gig P4 I just assumed they were right, oops ;) I used AMD kit in all my systems until my latest (bar an early misadventure with Cyrix :P ) and wasn't much interested in Intel's offerings. Their current stuff overclocks easily; i've had this 2,4b at 3gig since installation. ..just remembered back in the day I had a celeron 300a @ 450MHz, what a chip :)

Your friend has an interesting setup, I've wanted to try making a multiprocessor system; I have several 1gig Athlons gathering dust. However, building it from fresh wouldn't be nearly as economical surely? £60 would have bought him a 2600XP chip. A mobo with RAID would be much cheaper than a multi-cpu mobo + raid card. Also the more modern chipset would have far better FSB, memory timings and 'upgradability'. I'd like to see how those systems stacked against one another.
Aug. 22nd, 2003 06:44 pm (UTC)
The system I set up for Dan (my music-making friend) was the result of a few design decisions and a lot of misadventure (VERY long story). He uses it for two applications and only two applications: Cubase and Soundforge.

Cubase is almost all floating-point, dual P4s would give us two FPUs, dual Athlons/Durons gave us six.

Soundforge is primarily limited by hard disk I/O. We used three Seagate Barracuda UDMA133 80GB hard disks hanging off an Adaptec AAA-UDMA UDMA66 RAID card (£38 from eBay, the UDMA133 version is ~£300 new). The Adaptec card has 32MB of ECC PC66 SDRAM cache (takes up to 64MB, the 32MB was from eBay, stripped from an old Dell box). The three disks are in a RAID5 stripe set w/ parity, not something the highpoint controllers or similar on most consumer boards support. The card will pretty near saturate one of the two PCI buses on the Tyan board we've used, which is about as good as we can get.

The upgrade path is fairly limited: funds permitting, when AMD clear out stocks of Athlon MP in a year or two, Dan will purchase two of the most powerful Athlon MPs the board will take, and slot them in. There's currently two 512MB Registered PC2700 DIMMS in there, with the board supporting 3.5GB max, so a couple of 1GB DIMMs are on the upgrade list. Dan's planning for any other disk requirements to be met using network storage, to keep noise levels down.

I'd post pictures, but it's not quite ready yet and Dan wouldn't be happy if his logo wasn't on it (he's getting it engraved into the aluminium front panel).
Aug. 22nd, 2003 07:21 pm (UTC)
A few points I forgot
I'll keep this brief.

Tyan Tiger S2460?, the first dual-Athlon board. Firmware leaves much to be desired. In order to boot a DOS floppy and flash it I had to replace the Matrox video card with an old ATI 2MB 2D-only PCI one I 'liberated' from a previous employer. Otherwise pretty good, 2 PCI buses with 3 64-bit PCI slots on one of them, AGPx4 (I think), supports registered PC2700 on twin memory buses.

At the moment each DIMM is on it's own memory channel, to maximise throughput.

I forget which CPU coolers we used, but they take 80mm Papst or Panaflow silent fans (don't know what Dan's experimenting with at the moment). There's two exhaust fans next to the CPUs, and modified airflow around the PSU (to pull air through the hard drive enclosures).

Extensive work with sound insulation of varying thicknesses around the inside of the case. Hard disks are in modified coolermaster cooldrives (no fans, fronts replaced with machined aluminium, sound insulation internally. All fans and case components are isolated to prevent vibration. It's practically silent, and we're working to make it quieter still. (Dan is even more of a perfectionist than I am.)

Currently 100baseT Intel Pro100 card. If we use network storage we'll run a dedicated crossover cable between gigabit ethernet cards (that's where the 64-bit PCI slots are useful).

Matrox Millenium G550 dual-head 32MB.

Somewhat modified 5u solid aluminium rack case.

I really am going to bed now.
Aug. 22nd, 2003 07:28 pm (UTC)
yet another post
I just remembered, one reason we used Durons as opposed to older Athlons was that the Athlon XP requires modding with conductive pen to run in a dual config. The Durons run right out of the box, and show up in POST as 'Duron MP', despite AMD saying they don't work. Level 2 cache is no great asset for the jobs we wanted to do, and otherwise the Duron core (at least for the last two or three they produced) is identical to the Athlon.

Personally, the only SMP I get up to is with a dual PPro 200MHz box I picked up a while back.
Aug. 27th, 2003 05:17 am (UTC)
creating a 14.8 x 10.5cm image at 600dpi so it can be sent off to the printer and come back as a glossy postcard sized flyer.
Aug. 27th, 2003 08:45 am (UTC)
Aaah, nothing like creative types to stress machines further than they were intended.
Aug. 22nd, 2003 05:14 pm (UTC)
Amazing how one little post can spew forth such technical know how :-p
Aug. 22nd, 2003 05:27 pm (UTC)
u left ur baccy tin here btw ;P

Cheers for upping all those series - didn't realise till you'd gone. Been keeping me entertained in work :D
Aug. 23rd, 2003 04:04 am (UTC)
NP, and it was Tsietisn's tin, well my tin but removed against by will anyway :-)
Aug. 22nd, 2003 06:44 pm (UTC)
Sad, isn't it?
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