Vegeta: Difference between revisions
| Line 58: | Line 58: | ||
Main event loop exit conditions: | Main event loop exit conditions: | ||
# The attack duration expires. | # The attack duration expires. | ||
# The <code>Pacer</code> says to stop. | |||
# The <code>stopch</code> is written to. | # The <code>stopch</code> is written to. | ||
| Line 63: | Line 64: | ||
<font color=darkkhaki>What is a tick? The main event loop <code>count</code> counts ticks.</font> | <font color=darkkhaki>What is a tick? The main event loop <code>count</code> counts ticks.</font> | ||
<code>Pacer</code> computes, via the <code>Pace()</code> method, the duration an <code>Attacker</code> should wait until hitting the next <code>Target</code>, given an already elapsed duration and completed hits. If the second return of the <code>Pace()</code> method is <code>true</code>, the <code>Attacker</code> should stop sending hits. <code>Pacer</code> also keeps the instantaneous hit rate per second at a given elapsed time during an attack. | |||
Revision as of 18:20, 31 July 2024
External
TODO
- https://www.cmscomputing.com/articles/testing/testing-with-vegeta-through-a-web-ui
- https://www.scaleway.com/en/docs/tutorials/load-testing-vegeta/
- https://serialized.net/2017/06/load-testing-with-vegeta-and-python/
- https://qainsights.com/deep-dive-into-vegeta-http-load-testing-tool-and-library/
- https://blog.absyah.dev/super-simple-guide-for-load-testing-using-vegeta
- https://geshan.com.np/blog/2020/09/vegeta-load-testing-primer-with-examples/
- https://isheep.xlog.app/vegeta?locale=en
Internal
Overview
Install
Command Line
brew install vegeta
For Development
go get github.com/tsenart/vegeta/v12@v12.11.1
Command Line Operations
Generate a plot with three different RPS.
Generate the HTTP request in a text file.
Then:
cat request.txt | vegeta attack -insecure -name=10RPS -rate=10 -duration=100s > results.10rps.bin
cat request.txt | vegeta attack -insecure -name=50RPS -rate=50 -duration=100s > results.50rps.bin
cat request.txt | vegeta attack -insecure -name=100RPS -rate=100 -duration=100s > results.100rps.bin
vegeta plot -title "Some Title" results.10rps.bin results.50rps.bin results.100rps.bin > plot.html
To get statistics from the bin file:
vegeta report ./results.10rps.bin
To Read Targets from File
vegeta attack -targets=<file> ...
Implementation Details
The Attack() function has a main event loop and "workers" goroutines, one per worker. The number of workers can be increased from the main event loop during an "attack" depending on what?.
Main event loop exit conditions:
- The attack duration expires.
- The
Pacersays to stop. - The
stopchis written to.
The "ticks" channel is a conduit for ticks, represented as struct{}s.
What is a tick? The main event loop count counts ticks.
Pacer computes, via the Pace() method, the duration an Attacker should wait until hitting the next Target, given an already elapsed duration and completed hits. If the second return of the Pace() method is true, the Attacker should stop sending hits. Pacer also keeps the instantaneous hit rate per second at a given elapsed time during an attack.