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Last active November 22, 2024 23:30
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Cluster Placement Group Ping Test
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Cluster Placement Group Ping Test

  • All performed on same subnet, all in the same security group
  • Instance launch times were fairly close together (minutes)
  • It does not appear cluster placement has a strong impact on latency
  • Test performed in us-west-2

Command:

ping -A -c 1000

c6i.large#1 -> i4i.large (same PG)

1000 packets transmitted, 1000 received, 0% packet loss, time 1997ms
rtt min/avg/max/mdev = 0.074/0.083/0.194/0.005 ms, ipg/ewma 1.999/0.082 ms

c6i.large#1 -> c6i.large#2 (same PG)

1000 packets transmitted, 1000 received, 0% packet loss, time 1997ms
rtt min/avg/max/mdev = 0.079/0.085/0.160/0.004 ms, ipg/ewma 1.999/0.085 ms

c6i.large#1 -> c6a.large (different PG)

1000 packets transmitted, 1000 received, 0% packet loss, time 1998ms
rtt min/avg/max/mdev = 0.082/0.092/0.192/0.007 ms, ipg/ewma 1.999/0.093 ms
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