[haiku-development] Re: Disabling CPU disabling
- From: Fredrik Andersson <fredrikandersson@xxxxxxx>
- To: "haiku-development@xxxxxxxxxxxxx" <haiku-development@xxxxxxxxxxxxx>
- Date: Fri, 25 Oct 2013 20:19:11 +0200
Just for consideration, this feature is in now way unique to Haiku/BeOS.
It's available historically for diagnostistic reasons, today it's added to more
and more systems as it allows some significant energy saving. (Linux can only
do it via a restart though)
Also does it really clutter the source significantly? if so it sounds like the
scheduler needs some refactoring?
OS X
https://developer.apple.com/library/mac/qa/qa1141/_index.html
Windows
http://bitsum.com/about_cpu_core_parking.php
> 25 okt 2013 kl. 19:26 skrev Jérôme Duval <korli@xxxxxxxxxxxxxxxx>:
>
> 2013/10/25 Pawel Dziepak <pdziepak@xxxxxxxxxxx>:
>> Since the scheduler code has grown quite big I am trying to remove as
>> much unnecessary logic as possible. The thing that caught my attention
>> is the possibility to disable a logical processor.
>
> A theorical use case would be hotplugging/unplugging a CPU. It's not
> that we plan to support that anytime soon though :)
>
> Bye,
> Jérôme
>
Other related posts:
