On Wed, 4 Nov 2020 at 22:22, Wolfgang Schuster <
wolfgang.schuster.lists@gmail.com> wrote:

> There was never a real test for the performance but when you enable the
> checker in the example below (which works only with LuaTeX) the second list
> is slower.
>
> % engine=luatex
> \starttext
> \testfeatureonce{10000}{\getcheckedparameters[test][xx][a=b,c= d, e = f]}
> \enablecheckparameters
> \testfeatureonce{10000}{\getcheckedparameters[test][xx][a=b,c= d, e = f]}
> \stoptext
>

Indeed the checked version is almost twice as slow, and the definition of
\getchecked parameters looks confusingly intimidating to follow, so I give
up figuring out the logic here.