sillyfool
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Quote: Moving a single thread around from processor to processor only decreases performance. That's why modern OS schedulers will keep the thread on one processor, and thus only one processor will be used. Nope, in fact schedulers do move thread…
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Quote: Yeah, but look at the scores. SPEC CPU2000 is single threaded and only tests the performance of 1 core. Look at them very carefully. Every single SPEC CPUint/fp2000 bench is single threaded, runs on one core. If you take an app that has a…
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Quote: Take a look at all 3000+ SPEC2000 results published on spec.org. Every single one of them reports single core or single processor results. Ummm, there are results for '2 cores, 2 chips, 1 core/chip'. There are results for ' 8 cores, 4 ch…
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Quote: Take a look at all 3000+ SPEC2000 results published on spec.org. Every single one of them reports single core or single processor results. All 26 CPU2000 bench programs are single threaded. Clearly you don't understand what 'single thread…
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Quote: The 2.3 GHz 970 FPU performance is better than or the same as a 3.6 GHz P4 given the right optimizations. The P4 is not 1.5 to 2 times faster as the SPECfp2k scores suggest. The 970 simply has more FPU resources than the P4 does. Having m…
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THT, I can't imagine why you think that Quote: Every single SPECint2000 or SPECfp2000 run is single threaded and only runs on one core of a dual-core processor or only runs on one processor of a multiprocessor system. That's not even remotely t…
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Henriok, did you even read the SPEC report that I posted? That report was submitted 15 months AFTER the VeriTest report. The SPEC report was submitted by IBM. IBM choose the compilers. And unless you think that they're idiots, you should start w…
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Intel made it very clear a long time ago that the entire product line was shifting to 64-bits. Intel has been shipping 64-bit CPUs for about a year now. I've been running 64-bit CPUs since October of last year. Intel's move to 64-bit x86 CPUs …
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I'm not aware of any single chip POWER5s. The lowest end POWER5 is a DCM (dual chip module). That's basically the Celeron of POWER5s. It's not really true to say that the POWER5 and the PowerPC are ISA compatible. For example the POWER5 has SMT b…
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Quote: Originally posted by ChevalierMalFet While I agree with the not "hating" sentiment; the internet server analogy isn't a great one for your arguement, since it's much more heavily dependent on integer performance, which traditionally has be…
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People who try to dismiss SPEC clearly don't design processors for a living. The people who design CPUs use SPEC ase the gold standard for comparing performance. The SPEC report for FP performance for the IBM PowerPC 970 (the chip that Apple call…
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Quote: I don't think the current ones are what compelled Apple to switch, because they are not that impressive performance per clock cycle. Look at AMD smoke'en'em at 2.6 GHz. I wish that we would avoid these kinds of over generalizations. It'…
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All processors ( RISC and CISC ) need to convert the code that comes out of the compilers into micro-ops. This process is pipelined, so there's essentially zero performance cost.
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Quote: curious, are you aware of IIRC anandtech showing powermac g5 suffering w.r.t mysql loads compared to... whatever it is they compared to, my brain is a bit fuzzy at the moment. This is probably what you had in mind:Quote: http://anandtech…
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Quote: G5 64Bit PowerPC Processor is the best buy bar none in the server market. Please help us understand two things: 1) Why, if the G5 is so powerfull, why is it that no other computer vendor other than IBM and Apple used them? Is it your b…
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If it's an n.mm GHz chip, then both cores are running at the same time and they are running at n.mm GHz. So the slowest speed chip ( the 1.66 GHz chip ) is just like having two chips, both of which are running at 1.66 GHz.
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Quote: The report seems to indicate that Yonah is a 32-bit chip. Does it also come in a 64-bit flavor? In the long run, yes,. When they're released in Q1 of next year? Maybe yes, maybe no. Rumors say 'yes', but official Intel roadmap says 'no'.…
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Quote: Originally posted by urp Agreed. Even IBM realized that mach was a waste of time and energy... Yup, me and Mach both left CMU at about the same time, so I had a bit of a soft spot for it. But facts-is-facts. Quote: For all the talk …
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Quote: Every review I've read about this says that LInux is O.K. but OSX is far superior to ANY operating system in the world. Spend some more time on Slashdot. And Anandtech can be usefull some times: http://anandtech.com/mac/showdoc.aspx?i=24…
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Quote: ... and people are getting tired of windows, they just don't have any options. Linux has come a very long way. Almost every company that I know of have Windows and Linux boxen but zero Macs.