| [News] Transcript of Alan Redhouses speech at AmiGBG 2003 | ANN.lu |
| Posted on 31-Mar-2003 19:40 GMT by Peter Gordon | 54 comments
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I have transcribed Alans AmiGBG speech. It can be viewed here.
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| Transcript of Alan Redhouses speech at AmiGBG 2003 : Comment 40 of 54 | ANN.lu |
| Posted by IanG on 02-Apr-2003 14:30 GMT | In reply to Comment 39 (Anonymous):
> Are you SERIOUSLY trying to claim that in a well-designed system, an external
> L3 cache will only give 3% performance improvements?
> Because if so, then you are talking out of your backside,
Whoa! I'm not claiming anything. I'm simply pointing out that you are *assuming* that the AOne is the crap item in the loop here. You have no more evidence of that than I do of my *hypothesis* that the Mac systems may be. You may not like Amigas, Eyetech or AOne's, but that does not automatically mean they are crap just because you say so.
> as anyone with even a vague clue about system designs will realise (unless,
> of course, your L1 and L2 cache are so large - say 8MB - that L3 would not be
> needed - this is blatantly not the case here).
You say "anyone with a vague clue". No offence, but your hand-waving suggests you only have at best a layman's understanding of the issues involved. Motorola and IBM *who designed the chip we're talking about* probably do have a fairly good clue about cache system designs. And they say you should see 3%.
The only real solution is to see if the Mac outperforms the AOne by as much as the L3 cache tests suggest. We can't do that because too many other variables come into play when the systems differ by so much. |
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