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general-scripts-and-system-…/customscripts/measure_performance
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#!/bin/bash
# usage:
## both quoted and unquoted commands work~
## measure_performance my_command -with -args
## measure_performance "my_command -with -args"
# todo: calculate human readable sizes for mem, r and w
# todo: batch mode
## loop through list of commands supplied by a file
## output da actual log for dis one ig lmao idk
### log results to a file named after the input file
### log format csv with titles
# glooboos
poll_seconds=5
logfile=/tmp/sillylog.tmp # can beee a temp fiel
input="$@" # da command as a string or as args
duration_microseconds=0
duration_seconds=0
test_cmd=""
start_seconds=$(date +%s)
# throw a fit if no args supplied
if [ -z "$1" ]; then
echo 'USAGE: measure_performance "string_command-with -args"'
exit 1
fi
# maek sure da log fileee DIESASDRGVWERT
if [ -f "$logfile" ]; then
rm -f "$logfile"
fi
measure_performance () {
# use microseconds for timing for ONE MILLION DOLLARS more times resolution
start_unixmicroseconds=$(date +"%s%6N") # get start microseconds fast as possible before run
# run the command with pidstart (-e)
eval "pidstat -h -H -d -r -u -I $poll_seconds -e $test_cmd >> \"$logfile\""
ret=$? # get da return code
# calculate durations
end_unixmicroseconds=$(date +"%s%6N") # get dis fast for accuracy
duration_microseconds=$(($end_unixmicroseconds - $start_unixmicroseconds))
duration_seconds=$(($duration_microseconds / 1000000)) # seconds = microseconds / 1,000,000
if [ -z "$1" ]; then
echo "testing your gay littel command: $test_cmd"
# parse and show infos
cat "$logfile" | sed '/^#\|^$\|^Linux/d' | tr -s ' ' ',' | awk -F, '{ cpup += $8; memk += $13; memp += $14; rkbs += $15; wkbs += $15 } END { print "\nCPU:",cpup/NR,"\nMemory Usage (KiB):",memk/NR,"\nMemory Usage %:",memp/NR,"\nKiB Read Per Second:",rkbs/NR,"\nKiB Written Per Second:",wkbs/NR }'
# nao add da rest
echo -e "Duration Seconds: $duration_seconds\nDuration Microseconds: $duration_microseconds\nReturn Code: $ret"
else
elapsed_seconds=$((`date +%s` - $start_seconds))
# parse and appand dem 2 da csv
cat "$logfile" | sed '/^#\|^$\|^Linux/d' | tr -s ' ' ',' | awk -F, "{cpup+= \$8;memk+=\$13;memp +=\$14;rkbs+=\$15;wkbs+=\$16 } END {print \"$position\",\",\",cpup/NR,\",\",memk/NR,\",\",memp/NR,\",\",rkbs/NR,\",\",wkbs/NR,\",\",\"$duration_microseconds\",\",\",\"$test_cmd\",\",\",\"$ret\",\",\",\"$elapsed_seconds\"}" | tr -d ' ' | tee -a "$csv_file"
fi
}
# main
## if oneshot mode
if [ ! -f "$input" ]; then
test_cmd="$@"
measure_performance
## if batch mode
else
# settans
results_log=$1.csv # todo: do file ext trickery
len=$(wc -l "$input" | awk '{print $1}') # num of lines in da fiel
count=1
csv_file="${input%.*}.csv"
if [ -f "$csv_file" ]; then
rm -f "$csv_file"
fi
# add da csv headers to the results fiel
echo "Position,CPU %,Memory (KiB),Memory %,KiB Read/Second,KiB Written/Second,Duration Microseconds,Command,Return Code,Seconds Elapsed" | tee "$csv_file"
cat "$input" | \
while read line; do
test_cmd="$line"
position="$count/$len"
measure_performance batch
count=$(($count + 1))
done
fi