Sunday, September 28
Grrr!
That Bastard Lileks™ has a dual-G5 Macintosh.
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That Bastard Lileks™ has a dual-G5 Macintosh.
Posted by: Pixy Misa at
07:33 AM
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1
Oh no! He killed Kenny! He's a bastard!
Posted by: Susie at Sunday, September 28 2003 09:09 AM (0+cMc)
2
He did? Bastard!
Posted by: Pixy Misa at Sunday, September 28 2003 09:12 AM (jtW2s)
3
The dual G5 is a sweet machine. It does, unfortunately, have one serious flaw. Its memory access design guarantees serious bottlenecks. I wouldn't turn one down, though, especially since I need a new server ASAP.
Posted by: Rossz at Sunday, September 28 2003 01:52 PM (43SjN)
4
Its memory access design guarantees serious bottlenecks.
I wasn't aware of that. Do you have a link to more information?
Posted by: Pixy Misa at Sunday, September 28 2003 10:29 PM (jtW2s)
5
The dual g5 system has a single memory controller, which is going to cause delays when both processors need data/instructions at the same time (and that could happen a lot) - one of them is going to have to wait. They have done a lot to optimize performance of the memory controller, which will help.
FYI, the Athlon64 processor has the memory controller built right in, so you end up with a controller for each processor. A controller for each processor is really needed for optimum performance. However, for typical use, e.g. a web server, it's not really that important. If you start running crypto cracking software or real time weather modeling, you'll want the extra performance boost.
Posted by: Rossz at Monday, September 29 2003 02:27 PM (43SjN)
6
Right. Yeah, the Opteron is a more scalable design, but the dual G5 is still better than, say, a dual Xeon system. (1GHz vs. 400 or 533MHz bus.) (Though the bus designs are somewhat different.)
I'm not sure how much of an issue this is on a dual-processor system, but it does seem to be a real problem with quad-processor Xeon boxes.
Posted by: Pixy Misa at Monday, September 29 2003 05:49 PM (jtW2s)
7
I'd have to agree. I don't particularly care for Intel designs. I always buy AMD (apples being way overpriced for what you get) - and I'll be sticking with 32-bit processors for a while, I'm afraid, since I can't justify a 64-bit processor for my needs (web server, mail server, MySQL database, etc). BTW, unless you have very specific needs such as graphics renderings, there is not a single good reason to spend the money on a G5 (or any other 64-bit system).
Ok, one good reason. The bragging rights are damn important.
Posted by: Rossz at Tuesday, September 30 2003 12:02 AM (43SjN)
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