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Graphing apache benchmark results with gnuplot
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# Tell gnuplot to use tabs as the delimiter instead of spaces (default) | |
set datafile separator '\t' | |
# skip first line with 'every ::2' in following commands | |
# First stats file to extract min time value | |
# (must be done before setting that x will be a time data serie) | |
stats "out.dat" every ::2 using 2 prefix "A" | |
# Output to a jpeg file | |
set terminal png size 1280,720 | |
# Set the aspect ratio of the graph | |
set size 1, 1 | |
# The file to write to | |
set output "timeseries.png" | |
# The graph title | |
set title "Benchmark testing" | |
# Where to place the legend/key | |
set key left top | |
# Draw gridlines oriented on the y axis | |
set grid y | |
# Specify that the x-series data is time data | |
set xdata time | |
# Specify the *input* format of the time data | |
set timefmt "%s" | |
# Specify the *output* format for the x-axis tick labels | |
set format x "%s" | |
# Label the x-axis | |
set xlabel 'seconds' | |
# Label the y-axis | |
set ylabel "response time (ms)" | |
set logscale y | |
# Plot the data | |
#plot "out.dat" every ::2 using 2:5 title 'response time' with points | |
# Plot the data with an x-origin at 0 | |
plot "out.dat" every ::2 using ($2-A_min):5 title 'response time' with points |
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$ ab -n 1000 -c 10 -g out.dat http://example.com/ |
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