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Old September 23rd, 2002, 10:44 PM
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If i'm wrong correct me, but I think this is the most common way for a DP machine to take advantage of the capability. When apps are multi threaded (meaning they run more than one task at a single time), performance with a DP machine is increased. With a single threaded app, the machine can only maximize one processor because data is only being sent to the processor from one task. If its sent from two, one application can use both processors.

For instance, when I run setiathome from commandline, and do a ps aux it shows that setiathome is using like 97% of the system resources, but when i run two instances, the BOTH use 97% of the resources on each processor.
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Old September 24th, 2002, 02:00 PM
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Re: threads

Quote:
Originally posted by X Rocks
If i'm wrong correct me, but I think this is the most common way for a DP machine to take advantage of the capability. When apps are multi threaded (meaning they run more than one task at a single time), performance with a DP machine is increased. With a single threaded app, the machine can only maximize one processor because data is only being sent to the processor from one task. If its sent from two, one application can use both processors.

For instance, when I run setiathome from commandline, and do a ps aux it shows that setiathome is using like 97% of the system resources, but when i run two instances, the BOTH use 97% of the resources on each processor.
Yep.. what he said
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Old September 24th, 2002, 02:52 PM
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Originally posted by boi
btw- a friend of mine and i decided that my DP 867 is much quicker than his G4 800 imac. it could be the crazy architecture or the video card (we tried not to do only video card-y stuff, though) and the DP just responded much much much quicker. OS X is definitely DP responsive. there are hardly any programs that require the speed of multiple processors anyway. it's nice to run a lot of programs at once because once one processor is at its max, the second one kicks in and there's no slowdown. a multitasking dream.

i'm gonna shut up now, i promise.
Boi, please don't shut up! I am now seriously considering a DP 867 and to just buy a superdrive for it. Since I am only doing home video stuff with FCP (titles, transitions, effects) the DP will come in handy, but I don't think I need the 1 GIG. One more post from you on how great your DP 867 is, and I am off to the Apple store! Tell me about window resizing speed for Mail and IE and I'm out the door!!!

P.S. How is the video card for that machine. I have a ATI Radeon 8500 in my G4 450 that I am 99.999% sure I will put in the new machine, and the other card will go in the G4 450 for whoever buys it from me.

P.P.S. Boi - did you have Apple put in the superdrive or did you put it in yourself?
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Old September 24th, 2002, 04:59 PM
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i had apple put the superdrive in my machine. i didn't need it, though. i wish i got the combo drive instead. it's painfully slow at reading cds and writing them. it's also kinda slow at reading DVDs. i don't write to DVDs much, so a combo drive should have been my route.
also, if you buy the DP 867, PUT AN ATI 9000 in it. it's a bazillion times better than the Geforce 4 MX and it's a pretty good deal from apple ($70 for me with the educational discount).
i honestly think the DP 867 is the best deal from Apple (the most speed for your money), and the upgradability is priceless. the speed is perfect for me. any faster and i won't really notice it at all. and FCP 3 is optimized for DP, so is iMovie and iDVD. there's very little render time for iMovie (i love live rendering!).
anyway, i love this computer to death. i definitely got my money's worth ^_^.
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Old September 24th, 2002, 05:04 PM
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Okay Boi, my wife has only you to blame for my going to buy this machine!
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Old September 24th, 2002, 05:08 PM
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as long as she doesn't know where i live ^_~
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Old September 24th, 2002, 09:42 PM
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Dual 1G machine of mine is running both FCP3.0 and After Effects and the difference is quite significant as compared to the Dual 450 I was previously using. The Dual 450 has been with me for a long time now, and I hate to let it go, so it is sitting beside the Dual 1G to prepare the graphics elements in Photoshop to be transferred into FCP.

The combo works great, because in Jaguar, PS7 just runs really smooth, and I have had no problems at all. I do not own the Dual 867, so I cannot tell you the difference. The single 867, however, is used purely for audio (ProTools) and it only runs on OS9 because ProTools has no OS X support.

Go for the new Dualies if you have the spare $$$, it is worth it.

Even log and capture feels faster! The rendering time almost sped up more than double the speed on the Dual 1G. I am very glad I chose to upgrade the video machine, as it helped to move things faster and lesser time wasted on waiting for rendering to end.
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Old September 25th, 2002, 12:33 AM
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plastic must be single!

Ah, youth...
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