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| Date: | Thu, 23 Dec 1999 10:58:41 +0100 (MET) |
| From: | John pullitr <pullitr AT gmx DOT net> |
| To: | cygwin AT sourceware DOT cygnus DOT com |
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| Subject: | Exec/Compile/Link Speed Comparison gcc/vc++ |
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comparison of 5 runs of the same neural network program:
using math.h : double *, /, exp() function
compiled in cmd-session NT4/SP3/PII-350
for different compilers: w=watcom,m=microsoft,g=gcc,
(gcc is from www.cygnus.com), b4.5 borland,
cb4 (=borland cppbuilder v5.4 = V4)
lcc/win32, w32c=win 32 console
execute 5 times : (make clean ; make ; + run)
for each compiler with optimization on/off
Summary
M6.0 is fastest = 1.62 seconds
W10.6 32 console = 2.95 seconds (154% of M6.0)
gcc 2.95.2 = 2.28 seconds (140% of M6.0)
cppbuilder V4.0 2.90 seconds
Compiler (CFLAGS) Execute(%) Comp/link(%) Count
size [bytes] min - max min - max
m5.0 3.41(210.4%) 3.08(146.2%) 5
128000 3.13- 3.75 2.73- 3.49
m6.0 3.09(190.6%) 3.21(152.2%) 5
122880 2.92- 3.23 3.03- 3.57
g2.95.2 3.09(190.7%) 5.93(281.4%) 5
96307 3.05- 3.15 5.79- 6.27
cb4 -Od 3.16(194.8%) 2.77(131.5%) 5
133120 2.97- 3.85 2.64- 2.98
b4.5 -Od 4.12(254.4%) 2.14(101.6%) 5
111217 4.05- 4.30 1.39- 2.36
w10.6/d16 8.54(527.3%) 6.63(314.7%) 5
129544 8.22- 9.38 6.58- 6.69
w10.6/w32c 3.16(194.8%) 8.82(418.5%) 5
119451 3.10- 3.27 8.49- 9.73
w10.6/d32 2.70(166.7%) 5.37(254.6%) 5
155409 2.65- 2.72 5.20- 5.60
lcc 3.37(208.3%) 2.11(100.0%) 5
72220 3.15- 3.93 2.02- 2.18
Optimization ON
m5.0 /Ox /G5 1.95(120.5%) 5.77(273.9%) 5
103936 1.89- 2.04 5.65- 6.04
m6.0 /Ox /G5 1.62(100.0%) 6.32(300.0%) 5
94208 1.56- 1.66 5.90- 7.50
g2.95.2 -O2 2.28(140.9%) 12.65(600.2%) 5
75107 2.24- 2.33 12.35-13.11
cb4 -O2 2.90(179.0%) 3.08(146.0%) 5
127488 2.77- 3.04 2.67- 4.57
b4.5 -O2 4.03(249.0%) 2.52(119.8%) 5
114289 3.95- 4.18 2.32- 3.10
w10.6/d16 -fpi87 -fp5 -ox 7.16(441.7%) 9.13(433.3%) 5
128872 7.14- 7.18 8.78- 9.58
w10.6/w32c -fpi87 -fp5 -ox 2.95(181.8%) 10.75(510.1%) 5
119416 2.66- 3.38 10.08-11.94
w10.6/d32 -fpi87 -fp5 -ox 2.50(154.0%) 6.80(322.8%) 5
137357 2.37- 2.75 6.59- 7.13
lcc -O 2.45(151.3%) 2.24(106.1%) 5
63032 2.39- 2.51 2.17- 2.28
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