#!/usr/bin/env tesh

$ ${bindir:=.}/io-stream --cfg=network/model:CM02 --cfg=network/crosstraffic:0 "--log=root.fmt:[%10.6r]%e%m%n"
> [  0.000000] Configuration change: Set 'network/model' to 'CM02'
> [  0.000000] Configuration change: Set 'network/crosstraffic' to '0'
> [  0.000000] [Bob -> Alice] Store and Forward (1 block)
> [  4.000000]     Read  : 4.000000 seconds
> [  6.000050]     Send  : 2.000050 seconds
> [  7.000050]     Write : 1.000000 seconds
> [  7.000050]     Total : 7.000050 seconds
> [  7.000050] [Bob -> Alice] Store and Forward (100 blocks)
> [ 11.000050]     Total : 4.000000 seconds
> [ 11.000050] [Bob -> Alice] Streaming (Read bottleneck)
> [ 15.000100]     Total : 4.000050 seconds
> [ 15.000100] [Alice -> Bob] Streaming (Write bottleneck)
> [ 23.000150]     Total : 8.000050 seconds
> [ 23.000150] Start two 10-second background traffic between Bob and Alice
> [ 23.000150] [Bob -> Alice] Streaming (Transfer bottleneck)
> [ 29.000200]     Total : 6.000050 seconds
> [ 45.000200] [Bob -> Alice] Streaming "from disk to memory" (no write)
> [ 49.000250]     Total : 4.000050 seconds
> [ 49.000250] [Bob -> Alice] Streaming "from memory to disk" (no read)
> [ 51.000300]     Total : 2.000050 seconds
> [ 51.000300] [Bob -> Bob] Disk to disk (no transfer)
> [ 59.000300]     Total : 8.000000 seconds

$ ${bindir:=.}/io-stream  "--log=root.fmt:[%10.6r]%e%m%n"
> [  0.000000] [Bob -> Alice] Store and Forward (1 block)
> [  4.000000]     Read  : 4.000000 seconds
> [  6.165599]     Send  : 2.165599 seconds
> [  7.165599]     Write : 1.000000 seconds
> [  7.165599]     Total : 7.165599 seconds
> [  7.165599] [Bob -> Alice] Store and Forward (100 blocks)
> [ 11.165518]     Total : 3.999919 seconds
> [ 11.165518] [Bob -> Alice] Streaming (Read bottleneck)
> [ 15.166169]     Total : 4.000651 seconds
> [ 15.166169] [Alice -> Bob] Streaming (Write bottleneck)
> [ 23.166819]     Total : 8.000651 seconds
> [ 23.166819] Start two 10-second background traffic between Bob and Alice
> [ 23.166819] [Bob -> Alice] Streaming (Transfer bottleneck)
> [ 29.662315]     Total : 6.495496 seconds
> [ 46.860161] [Bob -> Alice] Streaming "from disk to memory" (no write)
> [ 50.860812]     Total : 4.000650 seconds
> [ 50.860812] [Bob -> Alice] Streaming "from memory to disk" (no read)
> [ 53.026411]     Total : 2.165599 seconds
> [ 53.026411] [Bob -> Bob] Disk to disk (no transfer)
> [ 61.026411]     Total : 8.000000 seconds