gcc -O2 chameneosredux.c -lpthread 18.00u 303.29s 83.64r
gc chameneosredux 12.10u 0.00s 12.10r # 2.22X faster
+Jan 6, 2009
+
+# Long-overdue update. All numbers included in this complete run.
+# Some programs (e.g. reverse-complement) rewritten for speed.
+# Regular expressions much faster in common cases (although still far behind PCRE)
+# Bignum stuff improved
+# Better (but sometimes slower) locking in channels.
+
+fasta -n 25000000
+ gcc -O2 fasta.c 5.99u 0.01s 6.00r
+ gc fasta 9.11u 0.00s 9.12r # -11%
+ gc_B fasta 8.60u 0.00s 8.62r # +12% ??
+
+reverse-complement < output-of-fasta-25000000
+ gcc -O2 reverse-complement.c 2.00u 0.80s 9.54r
+ gccgo -O2 reverse-complement.go 4.57u 0.35s 4.94r # 33% faster
+ gc reverse-complement 2.01u 0.38s 2.40r # 3.3X faster
+ gc_B reverse-complement 1.88u 0.36s 2.24r # 3.2X faster
+GOGC=off
+ gc reverse-complement 2.01u 0.35s 2.37r
+ gc_B reverse-complement 1.86u 0.32s 2.19r
+
+nbody -n 50000000
+ gcc -O2 nbody.c 21.28u 0.00s 21.31r
+ gccgo -O2 nbody.go 80.02u 0.00s 80.05r # 33% faster
+ gc nbody 30.13u 0.00s 30.13r
+ gc_B nbody 29.89u 0.01s 29.91r
+
+binary-tree 15 # too slow to use 20
+ gcc -O2 binary-tree.c -lm 0.86u 0.00s 0.87r
+ gccgo -O2 binary-tree.go 4.82u 0.41s 5.24r # 2.5X slower
+ gccgo -O2 binary-tree-freelist.go 0.00u 0.00s 0.00r
+ gc binary-tree 7.23u 0.01s 7.25r # # -19%
+ gc binary-tree-freelist 0.43u 0.00s 0.44r # -9%
+
+fannkuch 12
+ gcc -O2 fannkuch.c 60.17u 0.00s 60.17r
+ gccgo -O2 fannkuch.go 78.47u 0.01s 78.49r
+ gc fannkuch 128.86u 0.00s 128.96r
+ gc_B fannkuch 90.17u 0.00s 90.21r
+
+regex-dna 100000
+ gcc -O2 regex-dna.c -lpcre 0.90u 0.00s 0.92r
+ gc regex-dna 9.48u 0.01s 9.50r # 3.1X faster
+ gc_B regex-dna 9.08u 0.00s 9.10r # 3.6X faster
+
+spectral-norm 5500
+ gcc -O2 spectral-norm.c -lm 11.48u 0.00s 11.48r
+ gccgo -O2 spectral-norm.go 11.68u 0.00s 11.70r
+ gc spectral-norm 23.98u 0.00s 23.99r
+ gc_B spectral-norm 23.68u 0.00s 23.69r
+
+k-nucleotide 1000000
+ gcc -O2 k-nucleotide.c 10.85u 0.04s 10.90r
+ gccgo -O2 k-nucleotide.go 25.26u 0.87s 26.14r
+ gc k-nucleotide 15.28u 0.06s 15.37r # restored; mysterious variation continues
+ gc_B k-nucleotide 15.97u 0.03s 16.00r
+
+mandelbrot 16000
+ gcc -O2 mandelbrot.c 56.12u 0.01s 56.15r
+ gccgo -O2 mandelbrot.go 56.86u 0.01s 56.89r
+ gc mandelbrot 66.05u 0.00s 66.07r # -3%
+ gc_B mandelbrot 66.06u 0.00s 66.07r # -3%
+
+meteor 16000
+ gcc -O2 meteor-contest.c 0.10u 0.00s 0.10r
+ gccgo -O2 meteor-contest.go 0.12u 0.00s 0.12r
+ gc meteor-contest 0.17u 0.00s 0.17r
+ gc_B meteor-contest 0.15u 0.00s 0.16r
+
+pidigits 10000
+ gcc -O2 pidigits.c -lgmp 2.57u 0.00s 2.59r
+ gc pidigits 38.27u 0.02s 38.30r # 1.5X faster
+ gc_B pidigits 38.27u 0.02s 38.31r # 1.5X faster
+
+threadring 50000000
+ gcc -O2 threadring.c 37.11u 170.59s 212.75r
+ gccgo -O2 threadring.go 89.67u 447.56s 442.55r # -6.5%
+ gc threadring 36.08u 0.04s 36.15r # +10%
+
+chameneos 6000000
+ gcc -O2 chameneosredux.c -lpthread 19.02u 331.08s 90.79r
+ gc chameneosredux 12.54u 0.00s 12.55r
+