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#!/bin/sh
set -eu
for cpu in $(seq 1 $(nproc)); do
echo "scale=100000;pi=4*a(1);0" | bc -l &
echo $!
done | ( \
sleep .1 ;
mhz=$(cat /proc/cpuinfo | grep "^[c]pu MHz" | cut -d: -f2 | tr -d ' ' | sort -nr | head -1);
printf "$(echo "scale=2; ($mhz + 5)/1000" | bc)\n"
while IFS= read -r pid; do
kill "$pid";
done )
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