The performance and limitation of Distrinet after docker replacement

[jiawei96-liu]

Use the same servers to deploy the original Distrinet and the Distrinet replaced by docker respectively, and compare their performance.

[ChengyuzeYang]

We tested the performances of these examples: a linear topology with 6 hosts and 6 switches; a binary tree whose depth is 3; customized topology.
We care about these metrics: the connection of the topology and the bandwidth of iperf.

[ChengyuzeYang]

Linear topology with 6 hosts and 6 switches:
lxd:pingall

lxd:iperf

docker:pingall

docker:iperf

[ChengyuzeYang]

Binary tree whose depth is 3:
lxd:pingall

lxd:iperf

docker:pingall

docker:iperf

[ChengyuzeYang]

Customized topology: the topology is the same as early test for Distrinet.
lxd:pingall

lxd:iperf

docker:pingall

docker:iperf

[ChengyuzeYang]

Otherwise, we added a new module to test the time to establish and stop the topology.And we noticed that after the docker replacement, time performance is better.
lxd:

type	start time(ms)	stop time(ms)
linear_10	43283.724	17412.770
linear_20	85042.979	29419.694
linear_30	145570.518	51053.180
linear_40	189553.188	73760.429
tree_depth=2_fanout=2	21257.863	9104.821
tree_depth=2_fanout=3	30518.782	13705.951
tree_depth=3_fanout=2	33082.372	14239.144
tree_depth=3_fanout=3	81417.790	28824.049
custom	46788.506	22290.356

docker:

type	start time(ms)	stop time(ms)
linear_10	39618.796	14586.549
linear_20	74643.517	29851.002
linear_30	116308.483	49878.966
linear_40	150765.474	71019.690
tree_depth=2_fanout=2	17055.762	6914.141
tree_depth=2_fanout=3	29184.385	13014.671
tree_depth=3_fanout=2	31833.954	11628.452
tree_depth=3_fanout=3	75521.407	29416.155
custom	45623.731	18247.342

[ChengyuzeYang]

Upper bound for linear topology:
lxd container: 90 hosts and 90 switches can be established.

lxd container: when establishing 99 hosts and 99 switches, this error occures.

docker container:300 hosts and 300 switches can be established.

docker container:400 hosts and 400 switches can be established.However, some packages are lost.