[Intel-gfx] [PATCH i-g-t v4] benchmarks/gem_wsim: Command submission workload simulator

[Chris Wilson]

On Thu, Apr 20, 2017 at 01:29:11PM +0100, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> +static void
> +run_workload(unsigned int id, struct workload *wrk, unsigned int repeat,
> +	     enum intel_engine_id (*balance)(struct workload *wrk,
> +					     struct w_step *w),
> +	     unsigned int flags)
> +{
> +	struct timespec t_start, t_end;
> +	struct w_step *w;
> +	double t;
> +	int i, j;
> +
> +	clock_gettime(CLOCK_MONOTONIC, &t_start);
> +
> +	srand(t_start.tv_nsec);

Let's supply the seed with the workload specification. And use a
portable prng so we can be sure we can reproduce results from one system
to the next.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre