Compile times and run times for benchmarks run with gcc-3.4.3 and gcc-4.0.0 20041112, on a 2GHz PowerPC G4 Mac with Gambit-C 4.0 beta 11.

Times are in seconds. Compile options were

gcc -I../../../include -O1 -fno-math-errno -fschedule-insns2 -fno-trapping-math -fno-strict-aliasing -fomit-frame-pointer -D___SINGLE_HOST -o $1 $1.c $1_.c ../../../lib/libgambc.a -lm -ldl -lncurses

Benchmark name gcc-3.4.3 (disable-checking) gcc-4.0.0 (disable-checking)
cpstak 0.61 0.52 0.66 0.49
ctak 0.62 0.57 0.71 0.57
deriv 0.63 1.93 0.74 2.13
diviter 0.62 0.49 0.65 0.59
fft 0.57 1.13 0.69 1.16
trav1 0.90 0.39 1.13 0.42
trav2 0.83 1.96 1.15 2.02
ack 0.42 0.73 0.61 0.72
array1 0.61 2.78 0.63 3.12
cat 0.54 2.19 0.65 2.45
string 0.57 1.98 0.69 1.97
sum1 0.61 2.26 0.66 2.12
sumloop 0.52 0.38 0.61 0.38
tail 0.62 0.34 0.66 0.25
mbrot 0.59 0.40 0.67 0.39
pi 1.22 1.32 1.63 1.32
sum 0.51 1.48 0.63 1.47
sumfp 0.54 3.67 0.57 4.43
tfib 0.51 0.94 0.56 0.93