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55 lines
2 KiB
Bash
55 lines
2 KiB
Bash
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#!/usr/bin/env bash
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# Copyright 2024 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Invoke this script with a list of *.dat and it'll plot them with gnuplot.
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# Any non-file parameter is passed through to gnuplot. By default,
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# an X11 window is used to display the result. To write into a file,
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# use
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# -e "set term png; set output <output>.png"
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files=()
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args=( -e "set term x11 persist" )
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for i in "$@"; do
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if [ -f "$i" ]; then
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files+=("$i")
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else
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args+=("$i")
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fi
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done
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(
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cat <<EOF
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set ytics autofreq nomirror tc lt 1
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set xlabel 'measurement runtime [seconds]'
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set ylabel 'scheduling rate [pods/second]' tc lt 1
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set y2tics autofreq nomirror tc lt 2
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set y2label 'scheduling attempts per pod' tc lt 2
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# Derivative from https://stackoverflow.com/questions/15751226/how-can-i-plot-the-derivative-of-a-graph-in-gnuplot.
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d2(x,y) = (\$0 == 0) ? (x1 = x, y1 = y, 1/0) : (x2 = x1, x1 = x, y2 = y1, y1 = y, (y1-y2)/(x1-x2))
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dx = 0.25
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EOF
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echo -n "plot "
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for file in "${files[@]}"; do
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echo -n "'${file}' using (\$1 - dx):(d2(\$1, \$2)) with linespoints title '$(basename "$file" .dat | sed -e 's/_/ /g') metric rate' axis x1y1, "
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echo -n "'${file}' using (\$1 - dx):(d2(\$1, \$4)) with linespoints title '$(basename "$file" .dat | sed -e 's/_/ /g') observed rate' axis x1y1, "
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echo -n "'${file}' using 1:(\$3/\$2) with linespoints title '$(basename "$file" .dat | sed -e 's/_/ /g') attempts' axis x1y2, "
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done
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echo
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) | tee /dev/stderr | gnuplot "${args[@]}" -
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