how to benchmark pure functions?
Imperatorn
johan_forsberg_86 at hotmail.com
Thu Oct 27 18:20:10 UTC 2022
On Thursday, 27 October 2022 at 17:17:01 UTC, ab wrote:
> Hi,
>
> when trying to compare different implementations of the
> optimized builds of a pure function using benchmark from
> std.datetime.stopwatch, I get times equal to zero, I suppose
> because the functions are not executed as they do not have side
> effects.
>
> The same happens with the example from the documentation:
> https://dlang.org/library/std/datetime/stopwatch/benchmark.html
>
> How can I prevent the compiler from removing the code I want to
> measure? Is there some utility in the standard library or
> pragma that I should use?
>
> Thanks
>
> AB
Sorry, I don't understand what you're saying.
The examples work for me. Can you provide an exact code example
which does not work as expected for you?
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