Quick CPU/process consumption analysis using mpstat&top

analyse_cpu_usage.txt

# run mpstat and top for 5 minutes, at then end, get a loadaverage value
export DURATION=300 # run for 5 minutes
rm -rf /tmp/analysis; mkdir -p /tmp/analysis; $(timeout -t $DURATION -s2 sh -c './mpstat 1 >/tmp/analysis/mpstat.txt') & $(timeout -t $DURATION -s2 sh -c 'top -b -d1 >/tmp/analysis/top.txt') & sleep $DURATION; cat /proc/loadavg >/tmp/analysis/loadavg.txt

# Filter top output (necessary as the top binary on my embedded system lack many options)
export PROCESS_NAME=communication

cat /tmp/analysis/top.txt  | grep $PROCESS_NAME | awk '{ print $7 }' | sed 's/%//g' > /tmp/analysis/top_filtered.txt
awk '{ total += $1 } END { print total/NR }' /tmp/analysis/top_filtered.txt > /tmp/analysis/top_avg.txt
cat /tmp/analysis/top_filtered.txt  | sort -nr | uniq -c > /btmp/analysis/top_weighted_categories.txt