Andrei Alexandrescu needs to read this

Andrei Alexandrescu SeeWebsiteForEmail at
Sun Oct 27 21:45:38 UTC 2019

On 10/23/19 5:37 PM, welkam wrote:
> I watched many of his talks and he frequently talks about optimization 
> that produce single digits % of speed up in frequently used algorithms 
> but doesnt provide adequate prove that his change in algorithm was the 
> reason why we see performance differences. Modern CPUs are sensitive to 
> many things and one of them is code layout in memory. Hot loops are the 
> most susceptible to this to the point where changing user name under 
> which executable is run changes performance. A paper below goes deeper 
> into this.
> Producing Wrong Data Without Doing Anything Obviously Wrong!

I know of the paper and its follow-up by Berger et al. Thanks.

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