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PerfAus

macrumors newbie
Aug 13, 2015
1
0
To add my feedback... Safari seems to be a huge battery drain on my 5s. I have reset settings but I can literally watch the battery level drop whilst browsing.

The level will also drop in huge 10% chunks sometimes, and can then miss the low power option trigger.

The wierdest thing though is when charging, I just watched my phone jump from 10% to 30% by just plugging in the charger.
 

2mw2

macrumors member
Dec 2, 2011
42
60
Been getting very poor battery life/heat on my 5S but couldn't pin it down. Plugged the phone into Xcode and started up the activity monitor to see what was going on. Found 2 things

- backboardd chewing up CPU cycles: Think it was mentioned in another thread - turn on reduce motion. If it's off already turn it on and then off. This reduced the cpu usage significantly

- whatsapp: as you soon as you start it the mediaanalysisd daemon goes into overdrive. Only remedy is to kill whatsapp

Using SysStatsLite will tell you the load average - quite helpful. Still looking but thought this might help folks here to see what's going on their devices

[Update] Looks mediaanalysisd goes into overdrive immediately when the phone sleeps. Have tried to turn off spotlight, killing all applications but to no avail. Anyone know what this daemon does exactly or how to kill it off or even prevent it from running :) ?

[Update2] A reset of all settings does seem to help as confirmed by a few folks here on the this thread. I have not not touched any other settings so far and i don't see the mediaanalysisd daemon going nuts - at least not for 30 mins so far. Will monitor tomorrow

[Update3] Looks like a major contribution to the drain is the public beta itself. The update from 8.4 can cause some problems. Since there is no ipsw for the public beta I decided to install the developer ipsw via DFU. The cpu drain does not seem to be as bad. Still not great as it seems to point to locationd daemon draining the battery now. Turning location services off fixes this. Looking at the battery usage screens doesn't generally doesn't help though apps like WhatsApp and Facebook somehow take more backgrounding cycles than normal. Looks like Apple have some work to fix these some of these issues (at least on the 5S devices).

[Update4] If you have Routing & Traffic on under Privacy set turn it off and do not include Traffic Conditions on your Today Screen. See if that helps. It seems to have reduced the cpu utilisation. Will monitor to see how it goes
 
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JotaVarSan

macrumors newbie
Aug 11, 2015
4
1
But based on percentages it seems more of it was audio (in the background with the screen off), right?
Youtube was 1 hour and 30 minutes movie , soundcloud 2 hrs and the remaining was on fb,twitter, etc
 

nerdriot

macrumors regular
May 16, 2015
205
78
Thought I'd throw mine in as well. I posted a SS of my battery usage before and said that maybe it'll get better in the future once the OS has kind of "settled in". This was last night, and I've gotta say this is better than what I was getting on 8.4, and I get these results daily.

8e6d62b249be6b575969fa37b4baa5a8.jpg


It finally died at 7 hrs 59 min (was so close to 8 hours lol).
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,461
Thought I'd throw mine in as well. I posted a SS of my battery usage before and said that maybe it'll get better in the future once the OS has kind of "settled in". This was last night, and I've gotta say this is better than what I was getting on 8.4, and I get these results daily.

8e6d62b249be6b575969fa37b4baa5a8.jpg


It finally died at 7 hrs 59 min (was so close to 8 hours lol).
iPhone 6?
 

GreyOS

macrumors 68040
Apr 12, 2012
3,358
1,694
iPhone 6.

not as good as my last shot of 8.4, but different type of usage probably
 

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mikeenglish

macrumors member
Aug 7, 2015
40
120
Thought I'd throw mine in as well. I posted a SS of my battery usage before and said that maybe it'll get better in the future once the OS has kind of "settled in". This was last night, and I've gotta say this is better than what I was getting on 8.4, and I get these results daily.

8e6d62b249be6b575969fa37b4baa5a8.jpg


It finally died at 7 hrs 59 min (was so close to 8 hours lol).

Did you have it in Battery Saving Mode all the time though?
 

mous94410

macrumors 6502a
Aug 12, 2015
630
472
Thought I'd throw mine in as well. I posted a SS of my battery usage before and said that maybe it'll get better in the future once the OS has kind of "settled in". This was last night, and I've gotta say this is better than what I was getting on 8.4, and I get these results daily.

8e6d62b249be6b575969fa37b4baa5a8.jpg


It finally died at 7 hrs 59 min (was so close to 8 hours lol).

do you have reset the settings ?
 

vertsix

macrumors 68000
Aug 12, 2015
1,870
6,141
Texas
I figured out a workaround for the overheating and battery drain issues on the iPhone 5s with this beta.

My battery has stabilized and heating issues has been substantially reduced.

I turned on Low Power Mode, and while it was on, I rebooted my 5s. I noticed immediate improvements after the reboot. Turning on Low Power Mode and not rebooting would give me no improvements for some reason.

In order to maintain results, though, I suppose you'd have to stay on Low Power Mode the entire time.

Try this out and see if it works for you!
 

wasim711

macrumors newbie
Aug 13, 2015
3
0
iPhone 6 running iOS 9 PB3, battery seems to be double what I used to get on iOS 8 so far so good! for the first time I was able to leave my phone overnight without a charge and still get most of the day usage out of it.
 

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vertsix

macrumors 68000
Aug 12, 2015
1,870
6,141
Texas
iPhone 6 running iOS 9 PB3, battery seems to be double what I used to get on iOS 8 so far so good! for the first time I was able to leave my phone overnight without a charge and still get most of the day usage out of it.

Yeah. Low Power Mode works really well.
 

batting1000

macrumors 604
Sep 4, 2011
7,464
1,874
Florida
iPhone 6 running iOS 9 PB3, battery seems to be double what I used to get on iOS 8 so far so good! for the first time I was able to leave my phone overnight without a charge and still get most of the day usage out of it.

Wait. Five hours usage is double what you got on iOS 8? Yikes
 
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