Re: Suppressing native compilation (short and long term)

[Andrea Corallo]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Po Lu <luangruo@yahoo.com>
>> Cc: emacs-devel@gnu.org,  akrl@sdf.org
>> Date: Thu, 06 Oct 2022 17:52:35 +0800
>> 
>> Eli Zaretskii <eliz@gnu.org> writes:
>> 
>> > We could have such a feature, but how to implement it?  If we use a
>> > timer for that, the timer itself will drain the battery.
>> 
>> I think display-battery-mode users (I am one such user) will not agree
>> with that assessment.
>
> I didn't invent that, I've heard laptop users complain about timers.

For my education: why timer are computational expensive?

> But okay, if it's acceptable to run a timer in order to re-enable
> compilation when AC power is plugged in, I'm okay with such an
> optional feature.  Patches are welcome.
>
>> > And if defer it to the next invocation of the bytecode, we might never
>> > compile, because who can guarantee that the laptop is on AC when some
>> > arbitrary bytecode is executed?
>> 
>> We could push it onto a list of files to native compile, the files in
>> which are then compiled once we detect the laptop starts to run on AC
>> power.
>
> You will see that comp.el already has a queue of files that await
> compilation.  The new feature will newed to plug itself into that
> mechanism, I think.  Unless Andrea has a better idea.

I'd suggest this way as well.

BR

  Andrea