[PATCH v2 3/3] powerpc:selftest update memcmp_64 selftest for VMX implementation

[David Laight]

From: wei.guo.simon at gmail.com
> Sent: 21 September 2017 00:35
> This patch adjust selftest memcmp_64 so that memcmp selftest can be
> compiled successfully.
...
>  #define ITERATIONS 10000
> 
> +#define LARGE_SIZE (5 * 1024)
> +#define LARGE_ITERATIONS 1000
...

Measuring performance by doing a lot of iterations isn't ideal
and is pretty pointless.
Cold cache performance can be more useful.
Also you don't really want any dynamic branch prediction logic
tuned to the exact test you keep doing.

	David