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iperf3 + virtualbox machines

a guest Mar 25th, 2017 76 Never
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  1. Test Complete. Summary Results:
  2. [ ID] Interval           Transfer     Bandwidth       Retr
  3. [  4]   0.00-60.00  sec  4.76 GBytes   682 Mbits/sec  83625             sender
  4. [  4]   0.00-60.00  sec  4.76 GBytes   682 Mbits/sec                  receiver
  5. [  6]   0.00-60.00  sec  4.49 GBytes   642 Mbits/sec  85820             sender
  6. [  6]   0.00-60.00  sec  4.48 GBytes   642 Mbits/sec                  receiver
  7. [  8]   0.00-60.00  sec  3.79 GBytes   542 Mbits/sec  78816             sender
  8. [  8]   0.00-60.00  sec  3.78 GBytes   542 Mbits/sec                  receiver
  9. [ 10]   0.00-60.00  sec  3.07 GBytes   440 Mbits/sec  69753             sender
  10. [ 10]   0.00-60.00  sec  3.07 GBytes   440 Mbits/sec                  receiver
  11. [ 12]   0.00-60.00  sec  2.65 GBytes   380 Mbits/sec  65566             sender
  12. [ 12]   0.00-60.00  sec  2.65 GBytes   379 Mbits/sec                  receiver
  13. [ 14]   0.00-60.00  sec  2.49 GBytes   356 Mbits/sec  63142             sender
  14. [ 14]   0.00-60.00  sec  2.48 GBytes   356 Mbits/sec                  receiver
  15. [ 16]   0.00-60.00  sec  2.34 GBytes   335 Mbits/sec  60530             sender
  16. [ 16]   0.00-60.00  sec  2.34 GBytes   335 Mbits/sec                  receiver
  17. [ 18]   0.00-60.00  sec  2.07 GBytes   297 Mbits/sec  52428             sender
  18. [ 18]   0.00-60.00  sec  2.07 GBytes   297 Mbits/sec                  receiver
  19. [SUM]   0.00-60.00  sec  25.7 GBytes  3.67 Gbits/sec  559680             sender
  20. [SUM]   0.00-60.00  sec  25.6 GBytes  3.67 Gbits/sec                  receiver
  21. CPU Utilization: local/sender 15.5% (0.3%u/15.3%s), remote/receiver 10.4% (0.1%u/10.2%s)
  22.  
  23. so this is the data from between two virtual box machines on my mac...
  24.  
  25. client:
  26. iperf3 -c 192.168.56.101 -i 1 -t 60 -V -p 80 -P 8
  27.  
  28. server:
  29. iperf3 -s -p 80
  30.  
  31. i don't understand why those retry numbers are so high...
  32.  
  33. ---
  34.  
  35. ## Vagrant file:
  36. Vagrant.configure("2") do |config|
  37.   config.vm.define "web" do |web|
  38.     web.vm.box = "ubuntu/xenial64"
  39.     web.vm.hostname = 'web'
  40.     web.vm.box_url = "ubuntu/xenial64"
  41.  
  42.     web.vm.network :private_network, ip: "192.168.56.101"
  43.  
  44.     web.vm.provider :virtualbox do |v|
  45.       v.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
  46.       v.customize ["modifyvm", :id, "--memory", 512]
  47.       v.customize ["modifyvm", :id, "--name", "web"]
  48.     end
  49.   end
  50.  
  51.   config.vm.define "db" do |db|
  52.     db.vm.box = "ubuntu/xenial64"
  53.     db.vm.hostname = 'db'
  54.     db.vm.box_url = "ubuntu/xenial64"
  55.  
  56.     db.vm.network :private_network, ip: "192.168.56.102"
  57.  
  58.     db.vm.provider :virtualbox do |v|
  59.       v.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
  60.       v.customize ["modifyvm", :id, "--memory", 512]
  61.       v.customize ["modifyvm", :id, "--name", "db"]
  62.     end
  63.   end
  64. end
  65.  
  66.  
  67. ----
  68. sudo apt-get update && sudo apt-get install -y iperf3
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