Author: Dann Corbit
Date: 11:24:34 02/23/01
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On February 23, 2001 at 13:46:07, James Swafford wrote: >Below are a couple quick tests I ran to compare executable speeds of one >of my programs using MSVC 6 pro and the latest Cygwin. > >The tests were run on a Dell laptop running WinNT, 750 Mhz PIII, 512 mb ram. > >The first test was the WAC suite (first 100 problems) run at 10 sec/problem. >The summary reports below show the avg node counts at the bottom. > >The second test is an internal bench command that runs the nolot test >suite at 30 secs/problem, then computes avg nps. The function is >attached below. Disregard the comparisons to the K6-2 and Athlon - >I don't remember which compiler I used when I came up with those numbers, >and the program has changed a bit since. > >Here's the summary: >Test 1 (WAC 1-100 @ 10 sec.) >cygwin: > interior: 398622; frontier: 2429828 (node counts) >msvc 6: > interior: 384231; frontier: 2331737 > >Test 2 (nolot bench, 30 sec./problem) >cygwin: > mean node rate for benchmark -> 308177 n/s >msvc 6: > mean node rate for benchmark -> 293639 n/s I have never seen any program except a string operation test where GCC was faster. Is this result from Galahad or from another program? Have you tried the Intel compiler? You can try a free download for 30 days. Since you already have MS VC++ professional, it drops right into the IDE (in fact MS VC++ Professional or Enterprise is required). Exactly what version of GCC were you using? I have gcc-2.95.2-6 and it is usually 20-50% slower than MS VC++ and even worse when pitted with Intel.
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