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116 lines
3.6 KiB
116 lines
3.6 KiB
#!/bin/bash
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__run_sh__base_path="$(dirname "$(realpath --logical "${BASH_SOURCE[0]}")")"
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__run_sh__bash_libraries_relative_path="../../../bash_libraries"
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__run_sh__bash_libraries_absolute_path=$(cd "$__run_sh__base_path" && cd "$__run_sh__bash_libraries_relative_path" && pwd)
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export PATH="$__run_sh__bash_libraries_absolute_path:$PATH"
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source csv_to_dat.sh || exit 1
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source framework.sh || exit 1
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source get_result_count.sh || exit 1
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source panic.sh || exit 1
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source path_join.sh || exit 1
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source validate_dependencies.sh || exit 1
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experiment_main() {
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local -ri iteration_count=100
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local -ri word_count=100
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if (($# != 2)); then
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panic "invalid number of arguments \"$1\""
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return 1
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elif [[ -z "$1" ]]; then
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panic "hostname \"$1\" was empty"
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return 1
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elif [[ ! -d "$2" ]]; then
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panic "directory \"$2\" does not exist"
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return 1
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fi
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local -r hostname="$1"
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local -r results_directory="$2"
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# Perform Experiments
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printf "Running Experiments\n"
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local -ar dpis=(72 108 144)
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local -Ar dpi_to_port=(
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[72]=10000
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[108]=10001
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[144]=10002
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)
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local words
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for ((i = 0; i < iteration_count; i++)); do
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words="$(shuf -n"$word_count" /usr/share/dict/american-english)"
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for dpi in "${dpis[@]}"; do
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pango-view --dpi="$dpi" --font=mono -qo "${dpi}"_dpi.png -t "$words"
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pngtopnm "${dpi}"_dpi.png > "${dpi}"_dpi.pnm
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result=$(curl -H 'Expect:' -H "Content-Type: text/plain" --data-binary @"${dpi}"_dpi.pnm "$hostname:${dpi_to_port[$dpi]}" --silent -w "%{stderr}%{time_total}\n" 2>> "$results_directory/${dpi}_time.txt")
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rm "${dpi}"_dpi.png "${dpi}"_dpi.pnm
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# Logs the number of words that don't match
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echo "word count: $word_count" >> "$results_directory/${dpi}_full_results.txt"
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diff -ywBZE --suppress-common-lines <(echo "$words") <(echo "$result") \
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| tee -a "$results_directory/${dpi}_full_results.txt" \
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| wc -l >> "$results_directory/${dpi}_results.txt"
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echo "==========================================" >> "$results_directory/${dpi}_full_results.txt"
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done
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done
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# Process Results
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# Write Headers to CSV files
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printf "DPI,Success_Rate\n" >> "$results_directory/success.csv"
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printf "DPI,min,mean,p50,p90,p99,p100\n" >> "$results_directory/latency.csv"
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for dpi in "${dpis[@]}"; do
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# Skip empty results
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oks=$(wc -l < "$results_directory/${dpi}_time.txt")
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((oks == 0)) && continue
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# Calculate success rate
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awk '
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BEGIN {total_mistakes=0}
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{total_mistakes += $1}
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END {
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average_mistakes = (total_mistakes / NR)
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success_rate = ('$word_count' - average_mistakes) / '$word_count' * 100
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printf "'"$dpi"',%f\n", success_rate
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}
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' < "$results_directory/${dpi}_results.txt" >> "$results_directory/success.csv"
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# Convert latency from s to ms, and sort
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awk -F, '{print ($0 * 1000)}' < "$results_directory/${dpi}_time.txt" | sort -g > "$results_directory/${dpi}_time_sorted.txt"
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# Generate Latency Data for csv
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awk '
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BEGIN {
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sum = 0
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p50_idx = int('"$oks"' * 0.5)
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p90_idx = int('"$oks"' * 0.9)
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p99_idx = int('"$oks"' * 0.99)
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p100_idx = '"$oks"'
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printf "'"$dpi"',"
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}
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{sum += $0}
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NR==1 {min = $0}
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NR==p50_idx {p50 = $0}
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NR==p90_idx {p90 = $0}
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NR==p99_idx {p99 = $0}
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NR==p100_idx {p100 = $0}
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END {
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mean = sum / NR
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printf "%1.4f,%1.4f,%1.4f,%1.4f,%1.4f,%1.4f\n", min, mean, p50, p90, p99, p100
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}
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' < "$results_directory/${dpi}_time_sorted.txt" >> "$results_directory/latency.csv"
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done
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# Transform csvs to dat files for gnuplot
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csv_to_dat "$results_directory/success.csv" "$results_directory/latency.csv"
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}
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# Validate that required tools are in path
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validate_dependencies curl shuf pango-view pngtopnm diff
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main "$@"
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