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140 lines
4.6 KiB
Plaintext
140 lines
4.6 KiB
Plaintext
All tests on r45 or r70
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Aug 3 2009
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First version of fasta. Translation of fasta.c, fetched from
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http://shootout.alioth.debian.org/u32q/benchmark.php?test=fasta&lang=gpp&id=4
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fasta -n 25000000
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gcc -O2 fasta.c 5.98u 0.00s 6.01r
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gccgo -O2 fasta.go 8.82u 0.02s 8.85r
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6g fasta.go 13.50u 0.02s 13.53r
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6g -B fata.go 12.99u 0.02s 13.02r
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Aug 4 2009
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[added timing.sh]
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# myrandom:
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# hand-written optimization of integer division
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# use int32->float conversion
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fasta -n 25000000
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# probably I/O library inefficiencies
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gcc -O2 fasta.c 5.99u 0.00s 6.00r
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gccgo -O2 fasta.go 8.82u 0.02s 8.85r
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gc fasta 10.70u 0.00s 10.77r
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gc_B fasta 10.09u 0.03s 10.12r
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reverse-complement < output-of-fasta-25000000
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# we don't know - memory cache behavior?
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gcc -O2 reverse-complement.c 2.04u 0.94s 10.54r
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gccgo -O2 reverse-complement.go 6.54u 0.63s 7.17r
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gc reverse-complement 6.55u 0.70s 7.26r
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gc_B reverse-complement 6.32u 0.70s 7.10r
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nbody 50000000
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# math.Sqrt needs to be in assembly; inlining is probably the other 50%
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gcc -O2 nbody.c 21.61u 0.01s 24.80r
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gccgo -O2 nbody.go 118.55u 0.02s 120.32r
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gc nbody 100.84u 0.00s 100.85r
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gc_B nbody 103.33u 0.00s 103.39r
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[
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hacked Sqrt in assembler
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gc nbody 31.97u 0.00s 32.01r
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]
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binary-tree 15 # too slow to use 20
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# memory allocation and garbage collection
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gcc -O2 binary-tree.c -lm 0.86u 0.00s 0.87r
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gccgo -O2 binary-tree.go 1.69u 0.46s 2.15r
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gccgo -O2 binary-tree-freelist.go 8.48u 0.00s 8.48r
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gc binary-tree 9.60u 0.01s 9.62r
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gc binary-tree-freelist 0.48u 0.01s 0.50r
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August 5, 2009
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fannkuch 12
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# bounds checking is half the difference
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# rest might be registerization
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gcc -O2 fannkuch.c 60.09u 0.01s 60.32r
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gccgo -O2 fannkuch.go 64.89u 0.00s 64.92r
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gc fannkuch 124.59u 0.00s 124.67r
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gc_B fannkuch 91.14u 0.00s 91.16r
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regex-dna 100000
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# regexp code is slow on trivial regexp
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gcc -O2 regex-dna.c -lpcre 0.92u 0.00s 0.99r
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gc regexp-dna 26.94u 0.18s 28.75r
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gc_B regexp-dna 26.51u 0.09s 26.75r
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spectral-norm 5500
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gcc -O2 spectral-norm.c -lm 11.54u 0.00s 11.55r
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gccgo -O2 spectral-norm.go 12.20u 0.00s 12.23r
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gc spectral-norm 50.23u 0.00s 50.36r
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gc_B spectral-norm 49.69u 0.01s 49.83r
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gc spectral-norm-parallel 24.47u 0.03s 11.05r # has shift >>1 not div /2
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[using >>1 instead of /2 : gc gives 24.33u 0.00s 24.33r]
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August 6, 2009
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k-nucleotide 5000000
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# string maps are slower than glib string maps
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gcc -O2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include k-nucleotide.c -lglib-2.0 k-nucleotide.c: 10.72u 0.01s 10.74r
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gccgo -O2 k-nucleotide.go 21.64u 0.83s 22.78r
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gc k-nucleotide 16.08u 0.06s 16.50r
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gc_B k-nucleotide 17.32u 0.02s 17.37r
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mandelbrot 5500
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# floating point code generator should use more registers
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gcc -O2 mandelbrot.c 56.13u 0.02s 56.17r
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gccgo -O2 mandelbrot.go 57.49u 0.01s 57.51r
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gc mandelbrot 74.32u 0.00s 74.35r
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gc_B mandelbrot 74.28u 0.01s 74.31r
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meteor 16000
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# we don't know
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gcc -O2 meteor-contest.c 0.10u 0.00s 0.10r
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gccgo -O2 meteor-contest.go 0.12u 0.00s 0.14r
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gc meteor-contest 0.24u 0.00s 0.26r
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gc_B meteor-contest 0.23u 0.00s 0.24r
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pidigits 10000
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# bignum is slower than gmp
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gcc -O2 pidigits.c -lgmp 2.60u 0.00s 2.62r
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gc pidigits 77.69u 0.14s 78.18r
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gc_B pidigits 74.26u 0.18s 75.41r
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gc_B pidigits 68.48u 0.20s 69.31r # special case: no bounds checking in bignum
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August 7 2009
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# New gc does better division by powers of 2. Significant improvements:
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spectral-norm 5500
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# floating point code generator should use more registers; possibly inline evalA
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gcc -O2 spectral-norm.c -lm 11.50u 0.00s 11.50r
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gccgo -O2 spectral-norm.go 12.02u 0.00s 12.02r
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gc spectral-norm 23.98u 0.00s 24.00r # new time is 0.48 times old time, 52% faster
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gc_B spectral-norm 23.71u 0.01s 23.72r # ditto
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gc spectral-norm-parallel 24.04u 0.00s 6.26r # /2 put back. note: 4x faster (on r70, idle)
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k-nucleotide 1000000
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# string maps are slower than glib string maps
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gcc -O2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include k-nucleotide.c -lglib-2.0 10.82u 0.04s 10.87r
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gccgo -O2 k-nucleotide.go 22.73u 0.89s 23.63r
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gc k-nucleotide 15.97u 0.03s 16.04r
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gc_B k-nucleotide 15.86u 0.06s 15.93r # 8.5% faster, but probably due to weird cache effeccts in previous version
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pidigits 10000
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# bignum is slower than gmp
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gcc -O2 pidigits.c -lgmp 2.58u 0.00s 2.58r
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gc pidigits 71.24u 0.04s 71.28r # 8.5% faster
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gc_B pidigits 71.25u 0.03s 71.29r # 4% faster
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threadring 50000000
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gcc -O2 threadring.c -lpthread 35.51u 160.21s 199.50r
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gccgo -O2 threadring.go 90.33u 459.95s 448.03r
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gc threadring 33.11u 0.00s 33.14r
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GOMAXPROCS=4 gc threadring 114.48u 226.65s 371.59r
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# change wait code to do <-make(chan int) instead of time.Sleep
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gc threadring 28.41u 0.01s 29.35r
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GOMAXPROCS=4 gc threadring 112.59u 232.83s 384.72r
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