On 11/26/18 1:29 PM, Martijn Dekker wrote:
> I've noticed bash-5.0beta is quite a bit faster than bash-4.4 in running a
> lot of pure shell code. Good news.
>
> One optimisation that isn't done yet: if a subshell function like
>
> f() (foo)
>
> is used in a command substitution, it forks twice. I would like it if it
> could be optimised to eliminate the fork if the subshell function is the
> last command in the command substitution.
There is already code to optimize subshell commands like this; it's just
disabled until bash-5.1 so I have more time to test it.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU c...@case.edu http://tiswww.cwru.edu/~chet/
