RE: [PATCH v5 3/7] eal: add lcore variable performance test

[Morten Brørup]

> +     start = rte_rdtsc();
> +
> +     for (i = 0; i < ITERATIONS; i++)
> +             update_fun(mods[i & num_mods_mask]);

This indexing adds more instructions to be executed than just the update 
function.
The added overhead is the same for all tested access methods, so the absolute 
difference in latency (i.e. measured in cycles) is still perfectly valid.
Just mentioning it; no change required.

> +
> +     end = rte_rdtsc();
> +
> +     latency = (end - start) / ITERATIONS;

This calculation is integer; add (double) somewhere to make it floating point.

> +
> +     return latency;
> +}