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Based on the dialer.sh script by @alban: https://gist.github.com/alban/7abe7f6307184c58be7429e63a2d9053 Signed-off-by: Michael Schubert <michael@kinvolk.io>
Overview
The dialer scripts can be used to test Scope with a high number of containers and connections.
The dialer server is a TCP server that holds incoming connections forever.
The dialer client is a TCP client that opens n connection to a server and holds them forever.
The listener script starts a dialer server and prints its address for
usage with the dialer script. The dialer scripts starts up to n
(default 50) client containers, each opening a random (1-20) number of
connections.
time-scope-probe then can be used to measure the scheduled time
(utime + stime) of the scope-probe process on the host. The results
can be used to compare performance under different scenarios/branches.
Usage example
# Start a listener
./tools/dialer/listener
Listening on :8082
IP addr + port: 172.17.0.2:8082
# Start the dialer script with a maximum of 10 dialer containers
# (default 50)
./tools/dialer/dialer 172.17.0.2:8082 10
# Start time-scope-probe to measure the scheduled time of scope-probe
# every 3 seconds (default 10 seconds) for 3 times (default 60 times)
sudo ./tools/dialer/time-scope-probe 3 3
...
Build dialer container
go build -o bin/dialer
docker build -t dialer .