Author: Tom Kerrigan
Date: 22:11:49 08/23/04
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On August 23, 2004 at 23:26:28, Robert Hyatt wrote: >Of course it is _always_ easy to either criticize or guess. I tried to offer >_real_ data. This little program will allow a lot of tuning, although I wanted > >the data. I came up with some numbers that at _least_ are based on some sort of >reasonable approach to measuring cache usage. And it is a third data point that >directly supports my 512K/1024K/2048K data and Eugene's 1.5m/3.0m data. We both >show speed improvements as cache gets bigger, beyond 512kb. So did the >cachegrind program above. three out of four showing improvement is fairly >convincing. one out of four seems to be an anomoly of some sort, as yet >unexplained. Yes, yes, real data this, real data that. Get off your damn "real data" high horse. Are you saying that Anandtech's measurements are not real data? You point out that they messed up compiling TSCP for one of their articles. You ask for their exact test setup. But this is just cheap psychological BS to try to discredit the data in peoples' minds without actually saying anything about the data. Hey, if you want to play scientist (you are supposedly a computer "science" professor, right?), how about you try to reproduce their experiment? Get a Sempron and an Athlon 64 and take the measurements. That's what a scientist would do, scientific method and peer review and all that. Until you do that, you can't legimiately dispute their data. Besides, I took my own measurements, remember? Between a 2GHz 512k L2 Athlon 64 and a 2GHz Opteron. They performed EXACTLY the same. How is that not real data? So you're basically calling me a liar, with absolutely no justification. Well, until you run the same experiment and get different numbers, I say you can shut the hell up. Speaking of the scientific method, it's interesting that nobody could reproduce your Xeon experiment if they WANTED to, because you have no freakin' clue what version of Crafty you used. It's not that hard--just try to remember vaguely when you did the experiment and then figure out which version of Crafty you were on at the time. I really do not understand the problem. The only reason why you haven't done this already that I can think of is that your experiment was bogus and you don't want people figuring that out. -Tom
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