27 TCP tuning using test service

[Kurumiiw]

TCP tuning

Findings

Reno:

• sudden loss of stream communication

Cubic:

• Baaad
• Sudden loss of stream communication

Vegas:

• Total data: 348680
• Average bandwidth: 9282.017961477208
• % good: 87%
• 8 745 max good

Westwood:

• Total data: 181440
• Average bandwidth: 9981.734744627296

Westwood @ 1% loss:

• Total data: 181057
• Average bandwidth: 9808.661559008742

Vegas @ 1% loss:

• Total data: 181117
• Average bandwidth: 9334.388457326932

Hybla @ 1% loss:

• Total data: 181002
• Average bandwidth: 9876.76248499374
• Total data: 363666
  Average bandwidth: 9824.955087613658

---

CNR

10kbit 5% loss 100ms delay

Vegas:

• Run 1
  • Total data: 361147
  • Average bandwidth: 8237.628610888745
  • 49 retransmits
  • 47 dup acks
• Run 2
  • Total data: 364087
  • Average bandwidth: 8366.121081078101
  • 40 retransmits
  • 56 dup acks

Westwood:

• Run 1
  • Total data: 364878
  • Average bandwidth: 9455.907110658427
  • 25 retransmits
  • 52 dup acks
• Run 2
  • Total data: 362892
  • Average bandwidth: 9291.230154331059
  • 39 retransmits
  • 60 dup acks

Cubic:

• Run 1
  • Total data: 364289
  • Average bandwidth: 9615.423128660872
  • 17 retransmits
  • 163 dup acks
• Run 2
  • Total data: 363034
  • Average bandwidth: 9584.679151332542
  • 19 retransmits
  • 253 dup acks

---

NATO Narrow-band wwvfrm

16kbit 0% loss 500ms delay

Vegas:

• Run 1
  • Total data: 361810
  • Average bandwidth: 14965.052885291547
  • 3 retransmits
  • 1 dup acks

Westwood:

• Run 1
  • Total data: 361584
  • Average bandwidth: 15763.72772621357
  • 72 retransmits
  • 28 dup acks

Cubic:

• Run 1

  • Total data: 362828
  • Average bandwidth: 15523.652917096368
  • 71 retransmits
  • 150 dup acks

---

Satcom

250kbps 550ms 0% loss

Vegas:

• Total data: 360560
  Average bandwidth: 201567.9581135887
• 3 retransmits
• 1 dup acks

Westwood:

• Total data: 365421
• Average bandwidth: 196423.77825195328
• 44 retransmits
• 17 dup acks

Cubic:

• Total data: 361096
• Average bandwidth: 182771.07698407455
• 20 retransmits
• 11 dup acks

Hybla:

• Total data: 363157
• Average bandwidth: 221544.4077759325
• 109 retransmits
• 25 dup acks

---

Tactical broadband

2mbit 100ms 1% loss

Vegas:

• Total data: 723303
• Average bandwidth: 510192.2603060428
• 1 retransmit, 4 OoO
• 56 dup acks

Westwood:

• Total data: 724008
• Average bandwidth: 807194.191508918
• 0 retransmits, 10 OoO
• 97 dup akcs

Cubic:

• Total data: 722677
• Average bandwidth: 1633481.3712223873
• 1 retransmit, 22 OoO
• 211 dup acks 16.5%

---

5G

100mbit 20ms delay 0% loss

Vegas:

• Total data: 726686
• Average bandwidth: 16015038.010398414
• 0 retransmit, 0 OoO
• 0 dup acks

Westwood:

• Total data: 725292
• Average bandwidth: 18429484.658588115
• 0 retransmit, 0 OoO
• 0 dup acks

Cubic:

• Total data: 723409
• Average bandwidth: 18419368.596902937
• 0 retransmit, 0 OoO
• 0 dup acks

CNR: Westwood
Satcom: Vegas
Nato wwvfrm: Vegas
Terrestial: Cubic
5G: Cubic

[olavfla]

Very nice

[olavfla]

Test fails because default congestion control is set to vegas which is not available in workflow

[thorbjoernl]

We should make sure to keep track of tech debt when we ignore agreed upon merge requirements (even if for good reasons!). I've created an issue (#50) to track this problem.