Could you show me how you do the profiling for this specific case? Based on what proof that you can conclude that it is not the `[[` performance problem?
On 3/7/20, Chris Down <ch...@chrisdown.name> wrote: > Peng Yu writes: >>[[ $x ]] just tests whether the variable $x is of length 0 or not. So >>its performance should not depend on how long the variable is. > > Who said it has anything to do with the [[ builtin's performance? A shell > does > a lot more than just running one command. > > For this and the last issue you posted, you could quite trivially find out > the > answer yourself using `perf` or another profiler. > -- Regards, Peng
