Author: Dann Corbit
Date: 11:26:09 06/24/03
Go up one level in this thread
On June 24, 2003 at 14:23:10, Andreas Guettinger wrote: >On June 24, 2003 at 14:10:24, Tom Kerrigan wrote: > >>On June 24, 2003 at 14:02:02, Andreas Guettinger wrote: >> >>>On June 24, 2003 at 10:15:48, Dan Andersson wrote: >>> >>>>http://www.haxial.com/spls-soapbox/apple-powermac-G5/ >>> >>>I very good laugh indeed. The guy in the article compares G5/Xeon results using >>>VeriTest compiled on gcc3.3 with Intel P4 results and another Dell WS with >>>VeriTest compiled on Intel C++ 7.0 compiler. >>> >>> >>>Compiler: >>>Intel C++ 7.0 build 20021021Z >>> Microsoft Visual Studio .NET 7.0.9466 (libraries) >>> >>>The AMDs may be faster but you cannot compare benchmarks compiled with different >>>compilers. >> >>Sure you can. SPEC CPU is a CPU benchmark, not a CPU + gcc benchmark. You use >>whatever compiler you can to get the best score possible to indicate raw CPU >>performance. >> >>-Tom > > >Well, this tells us that VeriTest runs better compiled with Intel C++, but this >dosen't tell us anything about the CPU performance. To discover that IntelC++ >optimizes better than gcc on Intel chips I don't need to see a benchmark. :) > >See, same machine: > >Dell Precision 650 >(Pentium 4 Xeon 3.06 GHz) >Apple/Veritest >Compiler gcc3.3 >Score: 836 > >Dell Precision 650 >(Pentium 4 Xeon 3.06 GHz) >Dell >Compiler IntelC++ 7.0 >Score: 1089 The machine manufacturer is free to choose any available compiler and use any compiler settings that they like. If you go to the SPEC site, you will find out that that is what happens. Do you imagine somehow that all vendors would be forced to use the same compiler?
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