quick integer CPU benchmark

echo '2^2^20' | time bc > /dev/null
This is a quick and dirty way to generate a (non-floating-point) CPU-bound task to benchmark. Adjust "20" to higher or lower values, as needed. As a benchmark this is probably a little less bogus than bogomips, and it will run anywhere 'bc' does.
Sample Output
7.14user 0.00system 0:07.16elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+944minor)pagefaults 0swaps

2
By: mkc
2009-02-06 02:31:55

What Others Think

an enhancement is to provide '-p' for 'time', that way the output is standardized across various OS
romant · 482 weeks ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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