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roblogic/Compare distributions with Gnuplot.md

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How to get response time distributions from Jmeter data, and plot the data to compare performance.
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Compare distributions with Gnuplot.md

Comparing Response Distributions with Gnuplot

Bash script to get Response data

Analyse Jmeter CSV output using jstats2. The response values are in tmp files. Get frequency of response times into .dat files, using uniq and awk per below...

$ uniq -c /tmp/jstats2.1hASD | awk '{print $2, $1}' | sort -n > FPE10-50k-24May-freq.dat
$ uniq -c /tmp/jstats2.lJAVX | awk '{print $2, $1}' | sort -n > FPE11a-GetJourneys-freq.dat
$ uniq -c /tmp/jstats2.lEV2M | awk '{print $2, $1}' | sort -n > FPE11b-JourneyKnown-freq.dat

Gnuplot Example

Plot 3 distributions

set xrange [0:150]
set yrange [0:1200]
set xlabel "response time (ms)"
set ylabel "frequency (count)"
set title "FPEligibility response distributions"
set xtics 10
set grid
set style fill transparent solid 0.35
plot 'FPE10-50k-24May-freq.dat' with filledcurves, 'FPE11a-GetJourneys-freq.dat' with filledcurves, 'FPE11b-JourneyKnown-freq.dat' with filledcurves

FPE-multiplot.png

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