[igouy]

> e.g. thread startup cost

There are 2 which require threads, there's no PHP program for either of those so why do you think "thread startup cost" has any relevance?

[silentbicycle]

I wasn't stating which the outliers test, I was saying how to read the graph.

[igouy]

If that was your intention it's strange that as an example you suggested something that is not shown on the graph.