How to create a CPU spike with a bash command

Question

I want to create a near 100% load on a Linux machine. It\'s quad core system and I want all cores going full speed. Ideally, the CPU load would last a designated amount of

Answer 1

I went through the Internet to find something like it and found this very handy cpu hammer script.

#!/bin/sh

# unixfoo.blogspot.com

if [ $1 ]; then
    NUM_PROC=$1
else
    NUM_PROC=10
fi

for i in `seq 0 $((NUM_PROC-1))`; do
    awk 'BEGIN {for(i=0;i<10000;i++)for(j=0;j<10000;j++);}' &
done