On 12/27/18 11:32 PM, Peng Yu wrote:
>> You're whacking moles. Use a profiler. That's what they're for.
>
> I've already shown that $() is a major problem to slow down the speed
> and I have reduced using its usage in my code and significantly
> improved the performance.
This isn't a major deductive leap, since command substitution forks a
child and reads through a pipe. Forking is always more expensive than
not.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU [email protected] http://tiswww.cwru.edu/~chet/
