shell("netstat -i") has getting slow on MacOS10.x

Klaus major-k klaus at
Thu Mar 30 12:06:04 EDT 2017

Hi Tiemo,

> Am 30.03.2017 um 13:57 schrieb Tiemo Hollmann TB via use-livecode <use-livecode at>:
> Hello,
> I am not sure where to start searching and I am not good under the hood of
> Macs.
> I am retrieving MAC addresses:
> put "netstat -I" into myShell
> put shell(myShell) into tRes
> In former times that has taken "a few" seconds, now it takes around 20
> seconds. First I tested, if it was a slowdown of LC 8/9, but in LC 6.7.10 it
> is almost the same 20 secs. I am not sure, when the decrease actually
> happened, but if it is not LC then it must be an issue of one of the latest
> MacOSs.
> Has anybody any idea, if I can optimize anything in the performance of this
> shell request? Could it be any permission issue in the new OS? Anything I
> could workaround, or do I have to take this shell call as it is?
> Thanks for any ideas

using this script from Ken Ray:
took 30 millisecs on my Mac Mini, macOS 10.12.4 and LC 9 dp6.  :-)

> Tiemo



Klaus Major
klaus at

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