38 lines
1.6 KiB
Bash
38 lines
1.6 KiB
Bash
#!/bin/bash
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# usage:
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## both quoted and unquoted commands work~
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## measure_performance my_command -with -args
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## measure_performance "my_command -with -args"
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cmd="$@" # da command as a string or as args
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start_date=$(date)
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start_unixseconds=$(date +%s)
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poll_seconds=2
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logfile=/tmp/sillylog.csv
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# throw a fit if no args supplied
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if [ -z "$1" ]; then
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echo 'USAGE: measure_performance "string_command-with -args"'
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exit 1
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fi
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echo "testing your gay little command $cmd"
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# start times
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start_unixmicroseconds=$(date +"%s%6N") # get start microseconds fast as possible before run
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# run the command with pidstat monitoring it, using eval to handle strings and args methods
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eval "pidstat -h -H -d -r -u -I $poll_seconds -e $cmd >> \"$logfile\""
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# get exit code
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ret=$?
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# end times
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## microseconds
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end_unixmicroseconds=$(date +"%s%6N") # get dis fast for accuracy
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duration_microseconds=$(($end_unixmicroseconds - $start_unixmicroseconds))
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## seconds
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duration_seconds=$(($duration_microseconds / 1000000)) # seconds = microseconds / 1,000,000
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# remove lines starting with # (comments), empty lines, and those starting with Linux so its a pure csv
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# then squash spaces and replace with commas
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# them awk by delimiter comma to output
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cat "$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 }' #$1,$3,$8,$13,$14,$15,$16,$17 }'
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# add footer
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echo -e "Duration Seconds: $duration_seconds\nDuration Microseconds: $duration_microseconds\nReturn Code: $ret" |