1 : At a glance - Are the Ruby programs faster?

Each chart bar shows, for one unidentified benchmark, how much the fastest Ruby program used compared to the fastest Ruby JRuby program.

(Memory use is only compared for tasks that require memory to be allocated.)


These are not the only compilers and interpreters. These are not the only programs that could be written. These are not the only tasks that could be solved. These are just 10 tiny examples.

 2 : Approximately - Are the Ruby programs faster?

Each table row shows, for one named benchmark, how much the fastest Ruby program used compared to the fastest Ruby JRuby program.

(Memory use is only compared for tasks that require memory to be allocated.)

 Ruby used what fraction? used how many times more? 
Benchmark Time Memory Code
 spectral-norm †1/2 
 reverse-complement †1/21/10±
 regex-dna1/21/7±
 mandelbrot1/2 ±
 binary-trees1/21/5
 fasta± ±
 pidigits †± ±
 k-nucleotide±1/4±
 n-body ±
 fannkuch-redux ±
 Ruby used what fraction? used how many times more? 
Time-used  |-  |---  25% median  75%  ---|  -|
(Elapsed secs)1/21/21/2±±

† possible mismatch - one-core program compared to multi-core program.

± read the measurements and then read the program source code.

 3 : Measurements - Are the Ruby programs faster?

These are not the only tasks that could be solved. These are just 10 tiny examples. These are not the only compilers and interpreters. These are not the only programs that could be written.

For each named benchmark, measurements of the fastest Ruby program are shown for comparison against measurements of the fastest Ruby JRuby program.

Program Source Code CPU secs Elapsed secs Memory KB Code B ≈ CPU Load
 spectral-norm 
Ruby392.71102.0140,236828  96% 97% 96% 96% †
Ruby JRuby250.63243.93673,640326  21% 24% 31% 28% †
 reverse-complement 
Ruby8.388.39131,808255  0% 1% 0% 100% †
Ruby JRuby24.8418.241,284,372255  22% 14% 14% 88% †
 regex-dna 
Ruby27.989.46106,548529  64% 68% 92% 72%
Ruby JRuby49.5816.58787,976507  69% 67% 81% 84%
 mandelbrot 
Ruby1,974.54494.4062,6361019  100% 100% 100% 100%
Ruby JRuby3,308.31847.98762,944866  98% 98% 98% 98%
 binary-trees 
Ruby176.2260.91240,6761123  95% 65% 63% 69%
Ruby JRuby157.7997.791,168,552402  52% 25% 25% 68%
 fasta 
Ruby156.52158.177,216987  18% 25% 23% 36%
Ruby JRuby214.27207.73664,912760  27% 35% 20% 22%
 pidigits 
Ruby11.1911.21147,748242  1% 0% 100% 1% †
Ruby JRuby18.5412.70666,456242  18% 46% 66% 17% †
 k-nucleotide 
Ruby109.07109.11503,176449  0% 1% 1% 100%
Ruby JRuby85.3580.181,870,964449  8% 37% 20% 45%
 n-body 
Ruby673.78673.987,3041137  54% 0% 46% 1%
Ruby JRuby382.88375.10755,9801137  23% 23% 28% 29%
 fannkuch-redux 
Ruby3,110.09799.6428,5321426  97% 97% 98% 98%
Ruby JRuby1,296.44357.64684,4681426  90% 92% 99% 82%
 fasta-redux 
Ruby1.191.217,904772  1% 2% 100% 2%
No program

† possible mismatch - one-core program compared to multi-core program.

 4 : Are there other Ruby programs for these benchmarks?

Remember - those are just the fastest Ruby and Ruby JRuby programs measured on this OS/machine. Check if there are other implementations of these benchmark programs for Ruby.

Maybe one of those other Ruby programs is fastest on a different OS/machine.

 5 : Are there other faster programs for these benchmarks?

Remember - those are just the fastest Ruby and Ruby JRuby programs measured on this OS/machine. Check if there are faster implementations of these benchmark programs for other programming languages.

Maybe one of those other programs is fastest on a different OS/machine.

 Ruby : the new Ruby 

online book Programming Ruby: The Pragmatic Programmers Guide

ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]

Home Page: Ruby is…

Download: Ruby 2.2.1 Released

Revised BSD license

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