RE: Suggest: Byte-Compile package-quickstart on a separate thread?

[arthur miller]

Since byte compiled quickstart file is  there just to speed up Emacs startup time a bit, it is well, not of some crucial importance to byte-compile it immediately. Isn't an idle-timer sufficient? Just so it gets it compiled at some-time before Emacs starts again. And if compilation fails Emacs can output a message to *Messages* buffer. Would that be sufficient? 

-------- Originalmeddelande --------

Från: "T.V Raman via Emacs development discussions." <emacs-devel@gnu.org>

Datum: 2020-12-28 22:52 (GMT+01:00)

Till: akrl@sdf.org

Kopia: emacs-devel@gnu.org, monnier@iro.umontreal.ca, raman@google.com

Ämne: Re: Suggest: Byte-Compile package-quickstart on a separate thread?

I buy your first argument. The second not so much so though it's moot
given the first argument.
Andrea Corallo writes:
 > "T.V Raman" <raman@google.com> writes:
 >
 > > "T.V Raman" via "Emacs development discussions." <emacs-devel@gnu.org>
 > > writes:
 > > Here's a small patch  that uses make-thread:
 > >
 > > git diff package.el
 > >
 > > diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el
 > > index bc450b09d0..104c2d8e71 100644
 > > --- a/lisp/emacs-lisp/package.el
 > > +++ b/lisp/emacs-lisp/package.el
 > > @@ -4108,7 +4108,7 @@ package-quickstart-refresh
 > >  ;; no-update-autoloads: t
 > >  ;; End:
 > >  "))
 > > -    (byte-compile-file package-quickstart-file)))
 > > +    (make-thread #'byte-compile-file package-quickstart-file)))
 >
 > I think this patch might have also the following two issues:
 >
 > - Doing intense computation in a Lisp thread usually make the system
 >   extremely unresponsive, and it does it certanly if the code does not
 >   yield.  As the byte compiler never yields the 'blocking' effect should
 >   be the same as running in the main thread, this because this Lisp
 >   thread is never preempted.
 >
 > - What about if the file being compiled is loaded before the byte
 >   compilation is completed?  This is another tricky part that has to be
 >   addressed (as we had to do in the native compiler).
 >
 > Regards
 >
 >   Andrea

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