IBM Cloud Docs
Network latency dashboards

Network latency dashboards

The Inter-region latency dashboard provides the average network round-trip latency (round-trip time or RTT) for all pairs of regions in IBM Cloud®. The dashboard shows a snapshot of inter-region RTT expressed in milliseconds. This snapshot is an average of multiple measurements over the previous 30 days. For each measurement, a pair of Linux VMs (of cx2-8x16 profile) is provisioned in the two corresponding regions in IBM Cloud. VM-to-VM network connectivity is provided by the Transit Gateway. Netperf TCP RR test is used for measuring the VM-to-VM latency between regions.

The Inter-AZ latency dashboard provides the average network RTT latency within a zone (Intra-Zone) and between availability zones (Inter-Zone) in a multi-zone region (MZR) in IBM Cloud. The dashboard shows a snapshot of inter-availability zone RTT expressed in milliseconds. This snapshot is an average of multiple measurements over the previous 30 days. For each measurement, a pair of Linux VMs (of cx2-8x16 profile) is provisioned in the two corresponding availability zones in the same VPC. VM-to-VM network connectivity is provided by the private network within the VPC. Netperf TCP RR test is used for measuring the VM-to-VM latency between the availability zones. The latency between storage and compute instances within the same zone is dependent on workload characteristics, and on average, expected target latency is in single-digit ms.

The results reported are as measured. There are no performance guarantees implied by these dashboards. These statistics provide visibility into latency between all regions and zones to help you plan the optimal selection for your cloud deployment and plan for scenarios, such as data residency and performance. These dashboards are not intended for use in troubleshooting.

30 Jun 2024

Inter-region latency

Table 1. 1 Jun 2024–30 Jun 2024
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 34 32 123 113 118 153 185 146 145
Toronto 34 19 93 83 108 172 214 165 132
Washington DC 31 20 98 75 88 176 214 169 120
Frankfurt 123 93 98 13 29 260 278 260 196
London 113 82 75 13 26 260 280 243 186
Madrid 118 108 88 30 26 272 291 258 208
Osaka 152 172 177 261 262 271 123 9 295
Sydney 185 215 216 280 280 290 123 116 329
Tokyo 145 165 169 262 243 257 9 116 288
Sao Paulo 145 131 118 195 187 211 295 326 287

Inter-AZ latency

Table 2. 1 Jun 2024–30 Jun 2024
Average latency (ms) Dallas 1 Dallas 2 Dallas 3
Dallas 1 0.1 2.03 2.16
Dallas 2 2.03 0.1 2.19
Dallas 3 2.16 2.19 0.09
Table 3. 1 Jun 2024–30 Jun 2024
Average latency (ms) Toronto 1 Toronto 2 Toronto 3
Toronto 1 0.1 1.77 1.96
Toronto 2 1.77 0.09 1.97
Toronto 3 1.96 1.97 0.1
Table 4. 1 Jun 2024–30 Jun 2024
Average latency (ms) Washington DC 1 Washington DC 2 Washington DC 3
Washington DC 1 0.09 0.86 0.86
Washington DC 2 0.86 0.09 0.76
Washington DC 3 0.86 0.76 0.07
Table 5. 1 Jun 2024–30 Jun 2024
Average latency (ms) Frankfurt 1 Frankfurt 2 Frankfurt 3
Frankfurt 1 0.1 0.89 0.79
Frankfurt 2 0.89 0.12 0.79
Frankfurt 3 0.79 0.79 0.1
Table 6. 1 Jun 2024–30 Jun 2024
Average latency (ms) London 1 London 2 London 3
London 1 0.08 2.29 1.83
London 2 2.29 0.08 1.91
London 3 1.83 1.91 0.08
Table 7. 1 Jun 2024–30 Jun 2024
Average latency (ms) Madrid 1 Madrid 2 Madrid 3
Madrid 1 0.09 0.67 0.62
Madrid 2 0.67 0.09 0.79
Madrid 3 0.62 0.79 0.09
Table 8. 1 Jun 2024–30 Jun 2024
Average latency (ms) Osaka 1 Osaka 2 Osaka 3
Osaka 1 0.09 1.65 1.62
Osaka 2 1.65 0.1 1.66
Osaka 3 1.62 1.66 0.09
Table 9. 1 Jun 2024–30 Jun 2024
Average latency (ms) Sydney 1 Sydney 2 Sydney 3
Sydney 1 0.09 1.8 0.97
Sydney 2 1.8 0.1 1.86
Sydney 3 0.97 1.86 0.1
Table 10. 1 Jun 2024–30 Jun 2024
Average latency (ms) Tokyo 1 Tokyo 2 Tokyo 3
Tokyo 1 0.1 1.65 1.37
Tokyo 2 1.65 0.1 1.87
Tokyo 3 1.37 1.87 0.1
Table 11. 1 Jun 2024–30 Jun 2024
Average latency (ms) Sao Paulo 1 Sao Paulo 2 Sao Paulo 3
Sao Paulo 1 0.09 1.94 2.89
Sao Paulo 2 1.94 0.09 2.09
Sao Paulo 3 2.89 2.09 0.09

23 Jun 2024

Inter-region latency

Table 12. 25 May 2024–23 Jun 2024
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 34 32 122 113 119 151 185 144 144
Toronto 34 19 92 82 107 171 214 163 131
Washington DC 32 20 97 75 89 175 214 169 119
Frankfurt 123 93 97 13 29 265 284 265 195
London 113 82 75 12 26 262 283 243 186
Madrid 120 107 89 29 26 272 291 257 209
Osaka 152 171 176 264 264 273 124 9 294
Sydney 184 216 216 285 282 292 124 117 328
Tokyo 145 164 168 265 243 256 9 116 286
Sao Paulo 144 129 118 196 187 209 294 327 287

Inter-AZ latency

Table 13. 25 May 2024–23 Jun 2024
Average latency (ms) Dallas 1 Dallas 2 Dallas 3
Dallas 1 0.1 2.02 2.16
Dallas 2 2.02 0.1 2.18
Dallas 3 2.16 2.18 0.09
Table 14. 25 May 2024–23 Jun 2024
Average latency (ms) Toronto 1 Toronto 2 Toronto 3
Toronto 1 0.1 1.78 1.95
Toronto 2 1.78 0.09 1.94
Toronto 3 1.95 1.94 0.1
Table 15. 25 May 2024–23 Jun 2024
Average latency (ms) Washington DC 1 Washington DC 2 Washington DC 3
Washington DC 1 0.08 0.87 0.84
Washington DC 2 0.87 0.11 0.76
Washington DC 3 0.84 0.76 0.07
Table 16. 25 May 2024–23 Jun 2024
Average latency (ms) Frankfurt 1 Frankfurt 2 Frankfurt 3
Frankfurt 1 0.1 0.89 0.77
Frankfurt 2 0.89 0.11 0.79
Frankfurt 3 0.77 0.79 0.1
Table 17. 25 May 2024–23 Jun 2024
Average latency (ms) London 1 London 2 London 3
London 1 0.08 2.3 1.84
London 2 2.3 0.08 1.98
London 3 1.84 1.98 0.08
Table 18. 25 May 2024–23 Jun 2024
Average latency (ms) Madrid 1 Madrid 2 Madrid 3
Madrid 1 0.09 0.67 0.63
Madrid 2 0.67 0.09 0.8
Madrid 3 0.63 0.8 0.09
Table 19. 25 May 2024–23 Jun 2024
Average latency (ms) Osaka 1 Osaka 2 Osaka 3
Osaka 1 0.09 1.65 1.61
Osaka 2 1.65 0.1 1.64
Osaka 3 1.61 1.64 0.09
Table 20. 25 May 2024–23 Jun 2024
Average latency (ms) Sydney 1 Sydney 2 Sydney 3
Sydney 1 0.09 1.86 1.1
Sydney 2 1.86 0.09 1.95
Sydney 3 1.1 1.95 0.09
Table 21. 25 May 2024–23 Jun 2024
Average latency (ms) Tokyo 1 Tokyo 2 Tokyo 3
Tokyo 1 0.1 1.66 1.39
Tokyo 2 1.66 0.1 1.87
Tokyo 3 1.39 1.87 0.1
Table 22. 25 May 2024–23 Jun 2024
Average latency (ms) Sao Paulo 1 Sao Paulo 2 Sao Paulo 3
Sao Paulo 1 0.09 1.93 2.88
Sao Paulo 2 1.93 0.09 2.08
Sao Paulo 3 2.88 2.08 0.09

16 Jun 2024

Inter-region latency

Table 23. 18 May 2024–16 Jun 2024
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 34 32 122 113 119 150 185 143 144
Toronto 34 19 92 83 108 169 216 163 131
Washington DC 32 19 96 75 89 174 214 169 119
Frankfurt 123 92 96 13 29 265 284 265 195
London 113 82 75 12 26 264 283 243 185
Madrid 121 108 90 29 26 272 292 255 209
Osaka 150 170 175 265 264 273 124 9 292
Sydney 184 216 216 287 283 293 123 117 328
Tokyo 144 162 167 265 242 256 9 116 286
Sao Paulo 144 129 119 196 187 208 293 328 287

Inter-AZ latency

Table 24. 18 May 2024–16 Jun 2024
Average latency (ms) Dallas 1 Dallas 2 Dallas 3
Dallas 1 0.1 2.03 2.18
Dallas 2 2.03 0.09 2.19
Dallas 3 2.18 2.19 0.09
Table 25. 18 May 2024–16 Jun 2024
Average latency (ms) Toronto 1 Toronto 2 Toronto 3
Toronto 1 0.1 1.75 1.93
Toronto 2 1.75 0.09 1.91
Toronto 3 1.93 1.91 0.1
Table 26. 18 May 2024–16 Jun 2024
Average latency (ms) Washington DC 1 Washington DC 2 Washington DC 3
Washington DC 1 0.08 0.87 0.82
Washington DC 2 0.87 0.13 0.79
Washington DC 3 0.82 0.79 0.09
Table 27. 18 May 2024–16 Jun 2024
Average latency (ms) Frankfurt 1 Frankfurt 2 Frankfurt 3
Frankfurt 1 0.1 0.89 0.78
Frankfurt 2 0.89 0.11 0.79
Frankfurt 3 0.78 0.79 0.1
Table 28. 18 May 2024–16 Jun 2024
Average latency (ms) London 1 London 2 London 3
London 1 0.08 2.29 1.82
London 2 2.29 0.08 2.0
London 3 1.82 2.0 0.08
Table 29. 18 May 2024–16 Jun 2024
Average latency (ms) Madrid 1 Madrid 2 Madrid 3
Madrid 1 0.09 0.67 0.63
Madrid 2 0.67 0.09 0.8
Madrid 3 0.63 0.8 0.09
Table 30. 18 May 2024–16 Jun 2024
Average latency (ms) Osaka 1 Osaka 2 Osaka 3
Osaka 1 0.09 1.65 1.58
Osaka 2 1.65 0.1 1.62
Osaka 3 1.58 1.62 0.09
Table 31. 18 May 2024–16 Jun 2024
Average latency (ms) Sydney 1 Sydney 2 Sydney 3
Sydney 1 0.09 1.88 1.13
Sydney 2 1.88 0.09 2.0
Sydney 3 1.13 2.0 0.09
Table 32. 18 May 2024–16 Jun 2024
Average latency (ms) Tokyo 1 Tokyo 2 Tokyo 3
Tokyo 1 0.1 1.69 1.4
Tokyo 2 1.69 0.1 1.86
Tokyo 3 1.4 1.86 0.1
Table 33. 18 May 2024–16 Jun 2024
Average latency (ms) Sao Paulo 1 Sao Paulo 2 Sao Paulo 3
Sao Paulo 1 0.09 1.92 2.85
Sao Paulo 2 1.92 0.09 2.07
Sao Paulo 3 2.85 2.07 0.09

9 Jun 2024

Inter-region latency

Table 34. 11 May 2024–9 Jun 2024
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 34 32 122 113 119 149 186 142 144
Toronto 34 19 93 83 108 168 215 162 132
Washington DC 32 20 95 75 89 173 214 169 118
Frankfurt 123 92 94 12 29 266 286 264 197
London 113 83 75 12 26 264 284 241 186
Madrid 121 108 89 29 26 273 293 254 209
Osaka 149 169 174 266 265 275 124 9 291
Sydney 185 216 217 288 284 293 124 117 329
Tokyo 144 162 166 264 241 255 9 117 285
Sao Paulo 143 131 119 196 187 209 292 327 286

Inter-AZ latency

Table 35. 11 May 2024–9 Jun 2024
Average latency (ms) Dallas 1 Dallas 2 Dallas 3
Dallas 1 0.09 2.06 2.21
Dallas 2 2.06 0.09 2.21
Dallas 3 2.21 2.21 0.09
Table 36. 11 May 2024–9 Jun 2024
Average latency (ms) Toronto 1 Toronto 2 Toronto 3
Toronto 1 0.1 1.75 1.95
Toronto 2 1.75 0.09 1.9
Toronto 3 1.95 1.9 0.09
Table 37. 11 May 2024–9 Jun 2024
Average latency (ms) Washington DC 1 Washington DC 2 Washington DC 3
Washington DC 1 0.08 0.86 0.82
Washington DC 2 0.86 0.14 0.9
Washington DC 3 0.82 0.9 0.11
Table 38. 11 May 2024–9 Jun 2024
Average latency (ms) Frankfurt 1 Frankfurt 2 Frankfurt 3
Frankfurt 1 0.09 0.89 0.81
Frankfurt 2 0.89 0.1 0.78
Frankfurt 3 0.81 0.78 0.09
Table 39. 11 May 2024–9 Jun 2024
Average latency (ms) London 1 London 2 London 3
London 1 0.08 2.29 1.86
London 2 2.29 0.08 2.08
London 3 1.86 2.08 0.08
Table 40. 11 May 2024–9 Jun 2024
Average latency (ms) Madrid 1 Madrid 2 Madrid 3
Madrid 1 0.09 0.67 0.63
Madrid 2 0.67 0.09 0.8
Madrid 3 0.63 0.8 0.09
Table 41. 11 May 2024–9 Jun 2024
Average latency (ms) Osaka 1 Osaka 2 Osaka 3
Osaka 1 0.09 1.69 1.61
Osaka 2 1.69 0.1 1.65
Osaka 3 1.61 1.65 0.09
Table 42. 11 May 2024–9 Jun 2024
Average latency (ms) Sydney 1 Sydney 2 Sydney 3
Sydney 1 0.09 1.91 1.22
Sydney 2 1.91 0.09 2.03
Sydney 3 1.22 2.03 0.09
Table 43. 11 May 2024–9 Jun 2024
Average latency (ms) Tokyo 1 Tokyo 2 Tokyo 3
Tokyo 1 0.1 1.72 1.46
Tokyo 2 1.72 0.09 1.9
Tokyo 3 1.46 1.9 0.1
Table 44. 11 May 2024–9 Jun 2024
Average latency (ms) Sao Paulo 1 Sao Paulo 2 Sao Paulo 3
Sao Paulo 1 0.09 1.95 2.85
Sao Paulo 2 1.95 0.09 2.1
Sao Paulo 3 2.85 2.1 0.09

2 Jun 2024

Inter-region latency

Table 45. 4 May 2024–2 Jun 2024
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 34 32 122 113 120 150 185 142 144
Toronto 34 19 92 83 107 169 215 162 131
Washington DC 31 20 95 76 88 173 214 168 119
Frankfurt 123 92 94 12 29 267 287 264 197
London 113 83 75 12 26 264 285 242 187
Madrid 121 107 90 29 26 274 295 255 209
Osaka 149 167 173 267 266 275 124 9 291
Sydney 185 216 216 289 285 295 124 116 329
Tokyo 143 161 166 264 241 255 9 117 284
Sao Paulo 143 130 119 196 186 208 292 327 285

Inter-AZ latency

Table 46. 4 May 2024–2 Jun 2024
Average latency (ms) Dallas 1 Dallas 2 Dallas 3
Dallas 1 0.09 2.07 2.21
Dallas 2 2.07 0.09 2.21
Dallas 3 2.21 2.21 0.09
Table 47. 4 May 2024–2 Jun 2024
Average latency (ms) Toronto 1 Toronto 2 Toronto 3
Toronto 1 0.1 1.76 1.94
Toronto 2 1.76 0.09 1.89
Toronto 3 1.94 1.89 0.09
Table 48. 4 May 2024–2 Jun 2024
Average latency (ms) Washington DC 1 Washington DC 2 Washington DC 3
Washington DC 1 0.08 1.07 0.89
Washington DC 2 1.07 0.15 1.11
Washington DC 3 0.89 1.11 0.11
Table 49. 4 May 2024–2 Jun 2024
Average latency (ms) Frankfurt 1 Frankfurt 2 Frankfurt 3
Frankfurt 1 0.09 0.91 0.82
Frankfurt 2 0.91 0.1 0.79
Frankfurt 3 0.82 0.79 0.09
Table 50. 4 May 2024–2 Jun 2024
Average latency (ms) London 1 London 2 London 3
London 1 0.08 2.32 1.85
London 2 2.32 0.08 2.09
London 3 1.85 2.09 0.08
Table 51. 4 May 2024–2 Jun 2024
Average latency (ms) Madrid 1 Madrid 2 Madrid 3
Madrid 1 0.09 0.68 0.63
Madrid 2 0.68 0.09 0.8
Madrid 3 0.63 0.8 0.09
Table 52. 4 May 2024–2 Jun 2024
Average latency (ms) Osaka 1 Osaka 2 Osaka 3
Osaka 1 0.09 1.7 1.64
Osaka 2 1.7 0.1 1.69
Osaka 3 1.64 1.69 0.09
Table 53. 4 May 2024–2 Jun 2024
Average latency (ms) Sydney 1 Sydney 2 Sydney 3
Sydney 1 0.09 1.95 1.27
Sydney 2 1.95 0.09 2.06
Sydney 3 1.27 2.06 0.09
Table 54. 4 May 2024–2 Jun 2024
Average latency (ms) Tokyo 1 Tokyo 2 Tokyo 3
Tokyo 1 0.1 1.75 1.51
Tokyo 2 1.75 0.09 1.93
Tokyo 3 1.51 1.93 0.1
Table 55. 4 May 2024–2 Jun 2024
Average latency (ms) Sao Paulo 1 Sao Paulo 2 Sao Paulo 3
Sao Paulo 1 0.09 1.97 2.86
Sao Paulo 2 1.97 0.09 2.11
Sao Paulo 3 2.86 2.11 0.09