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 1 : Are the Haskell GHC programs faster? At a glance.

Each chart bar shows, for one unidentified benchmark, how much the fastest Haskell GHC program used compared to the fastest Clojure 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 : Are the Haskell GHC programs faster? Approximately.

Each table row shows, for one named benchmark, how much the fastest Haskell GHC program used compared to the fastest Clojure program.

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

 Haskell GHC used what fraction? used how many times more? 
Benchmark Time Memory Code
 reverse-complement †1/21/5±
 regex-dna1/21/2
 fasta †1/2 1/2
 pidigits1/2 1/6
 fannkuch-redux± 1/2
 spectral-norm± ±
 n-body± ±
 mandelbrot± 1/2
 binary-trees±±±
 k-nucleotide1/2
 Haskell GHC 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 : Are the Haskell GHC programs faster? Measurements.

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 Haskell GHC program are shown for comparison against measurements of the fastest Clojure program.

Program Source Code CPU secs Elapsed secs Memory KB Code B ≈ CPU Load
 reverse-complement 
Haskell GHC1.551.38126,340999  99% 4% 4% 4% †
Clojure4.382.86571,340727  44% 30% 64% 19% †
 regex-dna 
Haskell GHC3.591.0864,2281518  77% 88% 88% 84%
Clojure5.532.21136,216707  96% 52% 53% 52%
 fasta 
Haskell GHC4.494.022,732979  5% 6% 100% 5% †
Clojure7.996.5767,4001653  88% 5% 10% 20% †
 pidigits 
Haskell GHC3.982.716,212341  17% 16% 100% 17%
Clojure5.574.2477,4681944  28% 62% 29% 15%
 fannkuch-redux 
Haskell GHC63.3916.154,036834  99% 100% 100% 94%
Clojure82.0121.3359,1761491  99% 95% 96% 96%
 spectral-norm 
Haskell GHC15.704.041,940984  97% 97% 97% 97%
Clojure18.305.2564,960918  84% 83% 98% 85%
 n-body 
Haskell GHC24.3523.172,7281874  2% 3% 100% 2%
Clojure27.8726.6162,6242162  99% 2% 3% 2%
 mandelbrot 
Haskell GHC45.8111.4937,116782  100% 100% 100% 100%
Clojure32.128.94144,4241195  88% 96% 86% 91%
 binary-trees 
Haskell GHC64.7320.18813,620612  74% 74% 99% 74%
Clojure50.5615.08572,800750  88% 82% 85% 82%
 k-nucleotide 
Haskell GHC65.9917.73363,7801693  92% 93% 93% 97%
Clojure24.8610.20241,9602723  48% 98% 26% 73%
 fasta-redux 
No program
Clojure2.791.3748,8041428  39% 41% 94% 32%

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

 4 : Are there other Haskell GHC programs for these benchmarks?

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

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

 5 : Are there other faster programs for these benchmarks?

Remember - those are just the fastest Haskell GHC and Clojure 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.

 Haskell GHC : lazy pure functional programming 

The Glorious Glasgow Haskell Compilation System, version 7.8.2

Home Page: http://www.haskell.org/

Download: http://www.haskell.org/ghc/

Revised BSD license

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