Author: Tom Kerrigan
Date: 11:34:46 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 (SPEC) >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. :) Well, it does tell you about the CPU performance. If you can use one compiler and get 800 and another compiler and get 1200, what is the CPU performance? It's definitely not 800, because if you just use another compiler you can do 50% better. -Tom
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