Enable this to include the Dhrystone 2.1 benchmark. This test
calculates the number of Dhrystones per second, and the number of
DMIPS (Dhrystone MIPS) obtained when the Dhrystone score is divided
by 1757 (the number of Dhrystones per second obtained on the VAX
11/780, nominally a 1 MIPS machine).

To run the benchmark, it needs to be enabled explicitly, either from
the kernel command line (when built-in), or from userspace (when
built-in or modular.

Run once during kernel boot:

test_dhry.run

Set number of iterations from kernel command line:

test_dhry.iterations=<n>

Set number of iterations from userspace:

echo <n> > /sys/module/test_dhry/parameters/iterations

Trigger manual run from userspace:

echo y > /sys/module/test_dhry/parameters/run

If the number of iterations is <= 0, the test will devise a suitable
number of iterations (test runs for at least 2s) automatically.
This process takes ca. 4s.

If unsure, say N.

source code:

lib/