[haiku-development] Re: What's the status of Haiku?
- From: Fredrik Holmqvist <fredrik.holmqvist@xxxxxxxxx>
- To: haiku-development <haiku-development@xxxxxxxxxxxxx>
- Date: Fri, 22 Aug 2014 14:19:50 +0200
2014-08-21 23:32 GMT+02:00 Axel Dörfler <axeld@xxxxxxxxxxxxxxxx>:
> A switch to Linux would give us plenty of interesting features. Proper power
> management is only one of them, although I don't really think it would be
> all that hard to achieve for most hardware (on my Haswell based NAS, Haiku,
> booted from USB, only needs 1W more than Ubuntu 14.04 when idling, thanks to
> Pawel).
I think I can help you lower that :) In the cpu-idle GSoC the reason
found that we don't save more power is the ticking of network at
1000Hz and Deskbar/Tracker doing some querying. Both of these wake the
cpu much more than needed and can 'easily' be improved. The tick for
networking is just to check if there is a cable connected, rate
control and other side tasks, and could probably be lowered a lot.
(FreeBSD Arm uses 100Hz, but I think 20 or 10 would be ok, atm we use
same as FreeBSD x86).
The other case I don't have inside details on, but I was told it was
doing old style querying instead that could be replaced.
/Fredrik Holmqvist, TQH
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