hdr-plot for HdrHistogram
A standalone plotting script for https://github.com/giltene/wrk2 and https://github.com/HdrHistogram/HdrHistogram.
This is just a quick and unsophisticated script to quickly plot the
HdrHistograms directly from the output of wkr2 benchmarks.
For example:
how to run
installation:
pip3 install --upgrade --user hdr-plot
usage:
usage: hdr_plot.py [-h] [--output OUTPUT] [--title TITLE] [--nosummary]
[--noversion] [--units UNITS]
[--percentiles-range-max PERCENTILES_RANGE_MAX]
[--summary-fields SUMMARY_FIELDS]
files [files ...]
Plot HDRHistogram latencies.
positional arguments:
files List HDR files to plot
optional arguments:
-h, --help show this help message and exit
--output OUTPUT Output file name (default: latency.png)
--title TITLE The plot title
--nosummary Do not plot the summary box
--noversion Does not plot the version of hdr-plot
--units UNITS The latency units (ns, us, ms)
--percentiles-range-max PERCENTILES_RANGE_MAX
The maximum value of the percentiles range, e.g.
99.9999 (i.e. how many nines to display)
--summary-fields SUMMARY_FIELDS
List of fields to show in the summary box. A comma-
separated list of: min, max, mean, median, p50, p90,
p99, p999, p9999, ..., p999999. Default:
median,p999,p9999,max
Then run wrk with the -L option and store the output into a file, like:
wrk -t2 -c100 -d30s -R2000 -L http://127.0.0.1:8080/index.html &> result.out
Finally plot the percentile distribution:
hdr-plot --output myplot.png --title "My plot" ./result.out [...]
You can provide more files to be plotted on the same graph:
hdr-plot --output myplot.png --title "My plot" ./sample/file1.out ./sample/file2.out ./sample/file3.out
Please note that the name of the file is used as label for the plot legend.
Acknowledgements
A special thank to @Manuelbernhardt for providing PRs for a lot of improvements!
License
Copyright © 2018-2023 Bruno Bonacci - Distributed under the Apache License v 2.0
