Re: [PATCH] lib: test module for find_*_bit() functions

[Andrew Morton]

On Thu,  9 Nov 2017 17:07:14 +0300 Yury Norov <ynorov@xxxxxxxxxxxxxxxxxx> wrote:

> find_bit functions are widely used in the kernel, including hot paths.
> This module tests performance of that functions in 2 typical scenarios:
> randomly filled bitmap with relatively equal distribution of set and
> cleared bits, and sparse bitmap which has 1 set bit for 500 cleared bits.
> 
> ...
>
> +config TEST_FIND_BIT

Well.  It doesn't actually "test" the code.  It measures its performance ;)