Re: [PATCH 2/2] oslat: Don't take trace_threshold into account during preheat

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On Wed, 7 Jul 2021, Peter Xu wrote:

> On Wed, Jul 07, 2021 at 10:48:49AM +0200, Nicolas Saenz Julienne wrote:
> > The point of preheat is to make sure CPUs are out of idle and running at
> > max frequency by the time the real test starts. So it's expected to
> > incur into extra latencies we don't really mean to measure. With this in
> > mind, it doesn't make sense to take into account the trace threshold
> > during that run. So don't do it.
> > 
> > Note that this has been observed in practice. The threshold would be hit
> > during preheat but not during the real test.
> > 
> > Signed-off-by: Nicolas Saenz Julienne <nsaenzju@xxxxxxxxxx>
> 
> Reviewed-by: Peter Xu <peterx@xxxxxxxxxx>
> 
> -- 
> Peter Xu
> 
> 
Thanks, added




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