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e8f9bc11e7
`extras/dialer` contains both a dialer script and dialer.go, the go
sources for the dialer server and client, to allow users to build the
dialer container themselves. Move dialer.go to a sub directory `src`
since `make clean` (running `go clean ./...`) deletes the dialer script
otherwise.
Fixup for 4d20a91a97
Signed-off-by: Michael Schubert <michael@kinvolk.io>
47 lines
1.2 KiB
Markdown
47 lines
1.2 KiB
Markdown
## Overview
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The dialer scripts can be used to test Scope with a high number of
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containers and connections.
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The dialer server is a TCP server that holds incoming connections
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forever.
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The dialer client is a TCP client that opens n connection to a server
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and holds them forever.
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The `listener` script starts a dialer server and prints its address for
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usage with the `dialer` script. The `dialer` scripts starts up to n
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(default 50) client containers, each opening a random (1-20) number of
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connections.
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`time-scope-probe` then can be used to measure the scheduled time
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(utime + stime) of the scope-probe process on the host. The results
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can be used to compare performance under different scenarios/branches.
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## Usage example
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```
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# Start a listener
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./tools/dialer/listener
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Listening on :8082
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IP addr + port: 172.17.0.2:8082
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# Start the dialer script with a maximum of 10 dialer containers
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# (default 50)
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./tools/dialer/dialer 172.17.0.2:8082 10
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# Start time-scope-probe to measure the scheduled time of scope-probe
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# every 3 seconds (default 10 seconds) for 3 times (default 60 times)
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sudo ./tools/dialer/time-scope-probe 3 3
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...
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```
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## Build dialer container
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```
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go build -o bin/dialer src/dialer.go
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docker build -t dialer .
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```
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