Will any of these hacks significantly drain the battery?

KamisamaNoIuTori · 06-07-2011, 12:00 AM

And will having more than 1 drain it even more. like having duokan and fbkindle.
Thanks.

hawhill · 06-07-2011, 02:05 PM

having Duokan certainly doesn't because nothing of it is running on the CPU when you're in the Kindle GUI (when idling in the Duokan GUI, I can't really tell - though in my experience it doesn't make a difference).

For FBKindle, basically the same applies - but: It is usually started by launchpad. And launchpad *is* running on the device. Though I haven't heard of any complaints, it really depends on how launchpad goes to sleep. After looking in the code, I see it uses select(). I'm not sure I see everything at the first glance, but it seems it uses a 1sec timeout for that select() call, which means that every second it does a syscall. That's at least some overhead - I don't know if it's noticable, however.

Other hacks are usually started by launchpad. It's separate software in most cases and running it will of course need some power.

Screensaver and font hacks will most certainly be negligible. It's just running code against one kind of data vs. other kind of data. Plus minimal overhead upon boot.

06-07-2011, 12:00 AM	#1
KamisamaNoIuTori Junior Member Posts: 2 Karma: 10 Join Date: Jun 2011 Device: none	Will any of these hacks significantly drain the battery? And will having more than 1 drain it even more. like having duokan and fbkindle. Thanks.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
iLiad iLiad Battery Hacks: Part 2 -- 35 hours of battery life! A how-to guide.	jharker	iRex Developer's Corner	107	11-15-2013 09:15 AM
PRS-650 battery drain	StanByk	Sony Reader	13	06-25-2011 05:27 PM
Battery Drain	MaudDib	Amazon Kindle	6	02-07-2011 01:28 AM
DR1000 Battery drain with 1.7.1	Gogolo	iRex	11	09-14-2010 07:37 AM
Battery drain when off?	Avenger	iRex	19	06-17-2009 12:46 PM

06-07-2011, 02:05 PM	#2
hawhill Wizard Posts: 1,379 Karma: 2155307 Join Date: Nov 2010 Location: Goettingen, Germany Device: Kindle Paperwhite, Kobo Mini	having Duokan certainly doesn't because nothing of it is running on the CPU when you're in the Kindle GUI (when idling in the Duokan GUI, I can't really tell - though in my experience it doesn't make a difference). For FBKindle, basically the same applies - but: It is usually started by launchpad. And launchpad is running on the device. Though I haven't heard of any complaints, it really depends on how launchpad goes to sleep. After looking in the code, I see it uses select(). I'm not sure I see everything at the first glance, but it seems it uses a 1sec timeout for that select() call, which means that every second it does a syscall. That's at least some overhead - I don't know if it's noticable, however. Other hacks are usually started by launchpad. It's separate software in most cases and running it will of course need some power. Screensaver and font hacks will most certainly be negligible. It's just running code against one kind of data vs. other kind of data. Plus minimal overhead upon boot.

Advert