Author: Robert Hyatt
Date: 11:12:29 03/13/02
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On March 13, 2002 at 00:29:21, martin fierz wrote: >aloha! > >here's something i found on a german computer magazine website: >(http://www.heise.de/ct/english/02/05/182/) > > >"Under Windows we made use of Visual Studio 6 (with Service Pack 5), with which >in all probability most Windows applications have been created. The SPEC results >obtained with the new compilers such as the current GCC 3.0 or Intel's in-house >compiler are better by between ten and more than twenty percent. >[snip] >With a SPECint_base value of 306 Apple's 1 GHz machine under Mac OS X ran almost >head to head with the equally clocked Pentium III, combined with Linux and GCC, >with a SPECint_base value of 309. Under Windows, the bad quality of Microsoft's >run-of-the-mill compiler, which pushed the system down to a SPECint_base value >of 236, below the 242 value of the PowerMac running at a clock cycle of 800 MHz, >came back to haunt the Intel processor." > >and then there is the link http://www.heise.de/ct/english/02/05/182/qpic01.jpg >which shows the specint crafty result which is a whopping 444 for GCC and >only 293 for MSVC. > >is this really possible?? i remember i once tried GCC for my checkers program, >and of course it's long ago, but it was clearly worse than MSVC at the time. i >just can't remember anybody posting anything like this here, GCC being 50% >faster than MSVC... but usually, this magazine is good... > >cheers > martin > >PS: just another question: is linux 32-bit or 64-bit? can i use more than 2-4GB >ram under linux? 1. I've never seen GCC within 10% of the speed of MSVC. I doubt it has suddenly happened. 2. Linux is _both_. On intel (non-IA64 machines) it is a 32 bit operating system. On 64 bit processors like that Alpha or IA64 it is a 64 bit operating system. The RAM limit is not an OS issue, it is an architectural issue. Except for a bizarre hack Intel added a couple of years back, the 32 bit machines are limited to 4 gigs (2^32). With a kludge they added, this goes to 32 gigs I believe, but only for (at the time) the Xeons...
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