Congestion control mechanisms, compared

Yesterday I had a very interesting conversation about congestion control and how it affects long lived connections.
So I decided to do a very simple comparison. I created a 100MB file(dd if=/dev/zero of=test-file bs=1M count=100).

  • Scalable:
    • test-file  100%[==============================================>] 100.00M 5.13MB/s in 23s
2016-02-28 19:40:55 (4.35 MB/s) - ‘test-file’ saved [104857600/104857600]
  • Illinois:
    • test-file  100%[==============================================>] 100.00M 4.20MB/s in 24s
2016-02-28 19:21:57 (4.13 MB/s) - ‘test-file’ saved [104857600/104857600]
  • Yeah:
    • test-file  100%[==============================================>] 100.00M 5.03MB/s in 25s
2016-02-28 19:34:01 (4.02 MB/s) - ‘test-file’ saved [104857600/104857600]
  • Bic:
    • test-file  100%[==============================================>] 100.00M 1.98MB/s in 31s
2016-02-28 19:39:34 (3.21 MB/s) - ‘test-file’ saved [104857600/104857600]
  • Htcp:
    • test-file  100%[==============================================>] 100.00M 2.76MB/s in 34s
2016-02-28 19:36:12 (2.93 MB/s) - ‘test-file’ saved [104857600/104857600]
  • Cubic:
    • test-file  100%[==============================================>] 100.00M 1.54MB/s in 45s
2016-02-28 19:30:23 (2.21 MB/s) - ‘test-file’ saved [104857600/104857600]
  • Hybla:
    • test-file  100%[==============================================>] 100.00M 1.52MB/s in 50s
2016-02-28 19:38:31 (2.01 MB/s) - ‘test-file’ saved [104857600/104857600]
  • Westwood:
    • test-file  100%[==============================================>] 100.00M 2.81MB/s in 53s
2016-02-28 19:35:26 (1.90 MB/s) - ‘test-file’ saved [104857600/104857600]
  • Reno:
    • test-file  100%[=============================================>] 100.00M 1.48MB/s in 62s
2016-02-28 19:27:38 (1.62 MB/s) - ‘test-file’ saved [104857600/104857600]
  • Veno:
    • test-file  100%[=============================================>] 100.00M 1.22MB/s in 64s
2016-02-28 19:23:14 (1.56 MB/s) - ‘test-file’ saved [104857600/104857600]
  • LP:
    • test-file  100%[=============================================>] 100.00M 1.24MB/s in 95s
2016-02-28 19:32:54 (1.05 MB/s) - ‘test-file’ saved [104857600/104857600]

Some information on the best algorithms:


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Posted by HackMan
Dated: 29th February 2016
Filled Under: Linux General, Networking, Technology