Re: Alpha C/C++ performance

Robert Klein (robk@pulse-sys.com)
Fri, 25 Oct 1996 13:20:38 -0400

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>I am looking at buying an Alpha UDB, but I am concerned about the
performance of C/C++ under Linux. The benchmarks that I have seen (DGC, Inc.):
>
>> 166Mhz running NT equal to a P-75, running 64-bit Linux equal to a
P-100(maybe)
>> 233Mhz running NT equal to a P-133, running 64-bit Linux equal to a P-150
>
>suggest that all is not well. Can you enlighten me concerning gcc for
Alpha? I would be running principally custom built neural-network
simulators in C and C++. The code is floating-point intensive. I've
cruised the FAQ, but the discussion on C/C++ does not seem to address these
issues.

The big performance difference between Intel and Alpha is the FPU performance.
Alpha handles floating point better than pentiums.

Rob

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