The Computer Language
25.03 Benchmarks Game

Node.js versus C#

How the programs are written matters! Always look at the source code.

If the fastest programs are flagged * possible hand-written vector instructions or "unsafe" or naked ffi, does the host language matter? You might be more interested in the less optimised programs — more seconds, less gz source code.

fannkuch-redux      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* C# #5 2.35 9.03 33,559 1485 7.63
C# #2 30.41 30.39 32,924 584 8.13
* C# #9 8.43 33.37 34,038 1232 7.74
C# #6 9.95 39.50—39.54 33,300 1075 7.64
C# #3 11.04 44.49—46.04 33,182 1117 7.89
Node.js #5 11.07 43.76—44.47 111,055 1320 0.14
C# #8 43.84 43.83—43.87 32,858 519 7.51
Node.js #8 58.32 58.31 64,094 452 0.13
n-body      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* C# #9 3.20 3.18 32,059 2480 7.92
* C# #4 3.77 3.75 32,215 2137 8.55
* C# #7 4.83 4.81 32,297 1715 7.54
* C# #6 4.85 4.84 32,203 1754 7.89
C# #3 6.68 6.66 33,280 1311 7.62
C# #2 6.92 6.92 33,280 1339 7.93
C# #8 7.24 7.23 32,870 1335 7.70
C# 7.68 7.67 33,341 1424 7.60
C# #0 7.68 7.67 33,300 1342 7.60
Node.js #6 8.55 8.60—8.73 67,244 1274 0.11
Node.js #8 9.63 9.64—9.99 66,695 1173 0.16
spectral-norm      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* C# #5 0.96 3.44—3.64 37,929 776 8.71
Node.js #7 5.40 5.40 66,163 420 0.12
C# #8 5.43 5.41 33,214 441 7.70
Node.js 5.41 5.38—5.51 67,637 326 0.15
C# #3 1.56 5.82 36,172 890 8.36
Node.js #6 1.60 6.03 116,212 1002 0.14
Node.js #8 6.53 6.53 66,642 355 0.14
C# #2   Empty  
mandelbrot      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* C# #7 3.23 12.59—12.90 73,056 915 7.76
* C# 3.97 15.56—15.67 70,214 1980 10.98
* C# #9 3.95 15.46—15.61 70,402 822 7.95
Node.js #3 4.05 15.86—15.92 144,757 1128 0.15
C# #5 4.08 15.88 68,202 851 11.86
C# #8 26.42 26.42 33,915 492 7.59
C# #3 6.81 26.76—26.83 66,859 722 7.65
Node.js #2 29.41 29.44 73,617 422 0.11
C# #2 47.72 48.00—48.46 33,300 504 7.60
Node.js 69.02 72.84—75.47 69,100 380 0.15
Node.js #8 70.31 73.08—75.99 68,338 412 0.11
fasta      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
C# #9 1.23 1.23 33,571 1512 7.79
C# #5 1.53 5.45—5.54 47,833 1702 7.79
C# #8 5.80 5.49 37,343 904 8.59
C# 1.80 6.22—6.38 40,841 2113 7.88
* Node.js #5 2.56 7.10—7.15 120,930 2050 0.14
Node.js #8 18.98 19.26—19.53 74,129 742 0.13
Node.js 38.55 39.18—39.87 71,639 815 0.14
k-nucleotide      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
C# 3.26 10.80—11.05 190,829 2046 7.66
C# #6 5.73 15.07—15.28 189,972 1615 7.65
C# #4 12.25 43.35—45.07 606,466 1725 7.64
C# #7 42.96 43.57—43.83 557,740 1449 7.50
Node.js #3 15.99 43.91—44.53 448,524 1817 0.14
C# #8 87.51 79.54—80.86 1,408,664 736 7.89
Node.js #8 105.52 109.35—113.96 734,392 678 0.13
Node.js #2 35.57 110.72—113.74 1,897,566 941 0.13
Node.js 37.72 115.01—117.24 1,361,019 1011 0.13
reverse-complement      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* C# #9 0.68 1.51 550,793 2641 12.35
C# 3.32 3.31—3.39 666,341 1130 7.59
C# #5 2.59 3.87 1,056,952 1620 7.47
C# #6 1.75 4.03—4.07 1,058,517 1627 7.69
C# #7 1.69 4.47—4.62 967,602 1312 11.98
C# #3 8.65 13.47—13.71 1,266,110 934 8.01
* Node.js #2 15.53 16.25—16.39 763,048 1228 0.14
* Node.js #7   Bad Output  
binary-trees      [ Contentious. Different approaches. ]
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
C# #2 6.47 18.08—18.35 1,107,055 717 7.59
C# #7 6.40 18.01—18.41 1,053,831 706 7.48
C# 7.20 20.10—20.51 3,005,301 668 8.11
C# #3 7.42 20.59—21.11 3,014,975 688 7.55
Node.js #7 16.07 28.29—28.55 1,128,059 458 0.10
Node.js #6 8.61 30.92—31.04 1,275,720 752 0.06
Node.js 8.94 33.89—34.14 1,389,228 717 0.09
C# #6   Empty  
pidigits      [ Contentious. Different libraries. ]
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* C# #6 0.84 0.82 34,796 1182 7.91
* C# #5 0.86 0.89 37,335 990 7.47
Node.js #4 1.15 1.16 71,688 487 0.14
* C# #4 1.31 1.30 35,496 1135 7.69
C# #7 11.08 9.19—10.76 44,098 579 7.80
Node.js #2 12.17 12.15—12.42 102,679 405 0.10
Node.js #3 12.25 12.23—12.38 102,257 431 0.12
regex-redux      [ Contentious. Different libraries. ]
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* C# #2 1.43 2.64 402,747 1881 7.54
C# 4.63 4.83 618,988 641 7.95
C# #5 1.90 5.18—5.38 632,472 679 7.53
Node.js #3 4.35 5.71—5.92 840,503 675 0.12
Node.js #4 5.47 5.63—5.76 1,036,935 471 0.14
C# #4 8.59 30.62—33.76 882,033 854 7.44
Node.js

v23.8.0

C#

.NET SDK 9.0.100
Host Version: 9.0.0
Commit: 9d5a6a9aa4

<OutputType>Exe
<TargetFramework>net9.0
<ImplicitUsings>enable
<Nullable>enable
<AllowUnsafeBlocks>true
<ServerGarbageCollection>true
<ConcurrentGarbageCollection>true
<PublishAot>false