Two User-Experience Problems

Daniel J. Luke dluke at
Thu Aug 20 12:41:55 PDT 2015


# Number of simultaneous make jobs (commands) to use when building ports. This
# value may be set to 0 so the number of simultaneous make jobs will be set to
# the number of CPU cores that are automatically detected, or the number of GB
# of physical memory plus one, whichever is less.
buildmakejobs           0

> On Aug 20, 2015, at 3:30 PM, Jeremy Lavergne <jeremy at> wrote:
> from macports.conf
> # Lowered scheduling priority to use for commands run during configure,
> # build, and destroot. Accepted values are 0 (normal priority) through
> # 20 (lowest priority).
> #buildnicevalue         0
> check out Apple command line utility:
> pmset noidle
> On Aug 20, 2015, at 3:13 PM, Jean-François Caron wrote:
>> 1) I want ports to build in parallel when possible, but I’d like to select a maximum number of cores assigned to the job.  My CPU has 8 cores with hyperthreading, and when upgrading e.g. clang, my OS and apps are seriously laggy.  If could limit the number of cores assigned to the job, I’m guessing this wouldn’t happen.  According to my Googles, my only option is to disable parallel builds entirely. Would it be feasible to add an extra option like “buildmaxcores” or something?
>> 2) Since my OS is unusable during long builds, I walk away from the computer, but then it goes to sleep the build is paused.  The current advice is to get a non-macports app called Caffeine to do some magic, or write a custom port wrapper to use pmset noidle before and after the port command.  This should be an option in the MacPorts configuration somewhere, one shouldn’t have to resort to 3rd-party apps or scripting to get user-friendiness out of MacPorts.

Daniel J. Luke                                                                   
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