[squeak-dev] Re: Morphic Performance Graphs

Levente Uzonyi leves at elte.hu
Fri Apr 29 15:12:52 UTC 2011


On Fri, 29 Apr 2011, Marcel Taeumel wrote:

> Nice! :)
>
> I think you should run several passes for each value of "amount" and
> visualize the average value for each "amount" to get more meaningful
> results. There are several peaks in your graphs that, I think, do not
> represent the average use case but the influence of another hidden variable
> (e.g., garbage collector) you want to block out in your results.
>
> As far as I could see, you did not considered that in your benchmark code.
> Correct me, if I am wrong. :)

GC is part of the execution. Ignoring it for benchmarks with high memory 
usage yields false results. A single GC before each run is useful though, 
but I guess it's effect is not that significant for this benchmark. Note 
that the cost of finalization is also different among the used images.


Levente

>
> Marcel
>
> --
> View this message in context: http://forum.world.st/Morphic-Performance-Graphs-tp3481429p3483122.html
> Sent from the Squeak - Dev mailing list archive at Nabble.com.
>
>



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