Author: martin fierz
Date: 12:19:44 03/13/02
Go up one level in this thread
On March 13, 2002 at 14:12:29, Robert Hyatt wrote: >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. so do i :-) they are quoting a value of "297" for the crafty benchmark on a PIII 1GHz with MSVC, and "444" with GCC. would you know what typical numbers for a crafty spec benchmark on a 1GHz PIII should be like? i assume these are absolute numbers. >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... thanks - i'm trying to find a system where i get more than 2GB ram to build large checkers endgame databases - i would need about 5GB minimum. aloha martin
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