This works on my MacBook Pro
$ getconf _NPROCESSORS_ONLN
8

The macOS centric way is this:
$ sysctl -n hw.logicalcpu
8

Thanks,

Andrew FIsh

> On Mar 23, 2020, at 5:38 AM, Laszlo Ersek <lersek@redhat.com> wrote:
> 
> On 03/22/20 00:03, Rebecca Cran wrote:
>> Thank you. I think we probably do want to detect the number of threads
>> available: I'll see if I can work on that.
> 
> In a Linux environment, you can run "getconf _NPROCESSORS_ONLN".
> 
> In fact that's how I build the native BaseTools on my laptop:
> 
> $ . edksetup.sh
> $ nice make -C "$EDK_TOOLS_PATH" -j $(getconf _NPROCESSORS_ONLN)
> 
> And from a cursory web search:
> 
>  https://stackoverflow.com/a/23569003 <https://stackoverflow.com/a/23569003>
> 
> it is supposed to work on macOS too, and with a small tweak, on the BSDs
> as well.
> 
> Thanks
> Laszlo
> 
> 
>