New iPad Pro 9.7" stutter ...

[apolloa]

It will reduce the life of the battery, in the long run ...

How so? The battery will naturally degrade over time no matter what you do or how you charge it. And plenty of iPhones are left charging overnight but still working a few years later.
It is perfectly fine to leave devices charging overnight, I bet almost every Apple Watch owner does that, the devices are designed for it.

 

[danbsfc]

How so? The battery will naturally degrade over time no matter what you do or how you charge it. And plenty of iPhones are left charging overnight but still working a few years later.
It is perfectly fine to leave devices charging overnight, I bet almost every Apple Watch owner does that, the devices are designed for it.

Don't they have trickle charging built in so when it reaches 100% it slows charging dramatically just to keep it topped up?

 

[stylinexpat]

Cheer, Dan.

Just read it.

Stutter has been an issue with iOS for a while.

Both iPad Pros are supposedly so powerful, yet they can't seem to fluidly animate such basic things?

I don't understand how they can run certain games, if they have issues with this?

Strange ...

Maybe two more Gigabytes of RAM would have helped

 

[Bathplug]

I had a look at a demo 9.7" pro in the store and noticed some stutter with things like moving or splitting the keyboard, adjusting the middle divider between two apps in split screen, scrolling in some apps such as pages, the app store, music app, maps and rotating some other apps.

I was quite disappointed but ios hasn't been as smooth as it used to be since ios 7 but as an iPad 3 owner I was expecting the pro to be smoother than it was. I haven't really notice much stutter on my iPhone 5 which is on ios 8.4.

 

[Ries]

I had a look at a demo 9.7" pro in the store and noticed some stutter with things like moving or splitting the keyboard, adjusting the middle divider between two apps in split screen, scrolling in some apps such as pages, the app store, music app, maps and rotating some other apps.

I was quite disappointed but ios hasn't been as smooth as it used to be since ios 7 but as an iPad 3 owner I was expecting the pro to be smoother that it was. I haven't really notice much stutter on my iPhone 5 which is on ios 8.4.

Apple isn't fixing the underlying problem. The new iPad Pro is just stuttering twice as fast.

 

[Traverse]

There will always be some stutter because iOS isn't perfect. I just closed an app with the home butter and there was a slight stutter when he other apps flew back in. The hardware is sufficient, but no OS is flawless.

Definitely iOS, then.


I wouldn't do that.

In the long run, it's not going to be good for the battery ...

It doesn't hurt the battery. The devices stops charging when it gets full and then just sips power as needed.
[doublepost=1459705433][/doublepost]

Maybe two more Gigabytes of RAM would have helped

RAM doesn't help with graphical stutter. That's the GPU and iOS. The GPU is more than sufficient for constant 60 FPS but iOS and Apple's Metal framework aren't perfect.

 

[TheLondonFella]

Maybe two more Gigabytes of RAM would have helped

Did you not read how the fella with the larger iPad Pro (the one with 4GB of RAM) is also experiencing stutter?

It's an issue with iOS.

How can demanding games load, and run completely fluidly on 2GB RAM but simple OS animations stutter?

No doubt a future iOS update with sort it out ...

 

[Traverse]

How so? The battery will naturally degrade over time no matter what you do or how you charge it. And plenty of iPhones are left charging overnight but still working a few years later.
It is perfectly fine to leave devices charging overnight, I bet almost every Apple Watch owner does that, the devices are designed for it.

Indeed. I put my Apple watch on the charger every night (it has between 50% and 60% power) and take it off in the morning. Once in a while I do run my devices critically low, but other than that I don't care. Take a look at Apple's battery page. These devices stop charging when they reach 100%. They do not overcharge.

 

[TheLondonFella]

It doesn't hurt the battery. The devices stops charging when it gets full and then just sips power as needed.

What happens is the battery stops charging at 100%.

It then discharges slightly, then charges back to 100% again.

This constant "topping off" is not good in the long run.

However, you do what works for you ...

 

[Traverse]

No doubt a future iOS update with sort it out ...

Doubtful. It comes in cycles of supper smooth and then horrible. These devices have a million+ of lines of code running and the Metal framework is new. Look how OS X still stutters after 16 years. No OS is flawless.
[doublepost=1459705696][/doublepost]

What happens is the battery stops charging at 100%.

It then discharges slightly, then charges back to 100% again.

This constant "topping off" is not good in the long run.

However, you do what works for you ...

The devices sucks what it needs from the power cable and doesn't discharge the battery and then recharge by 1%. Sure, if you left it there for 5 years the battery would degrade from no use, but not overcharging. Just look at Apple's battery documentation.

 

[TheLondonFella]

Don't they have trickle charging built in so when it reaches 100% it slows charging dramatically just to keep it topped up?

It discharges slightly, once reaching 100%.

Then tops it back up.
[doublepost=1459706209][/doublepost]

Both my iPhone and iPad stay on chargers overnight...

Im happy for you.
[doublepost=1459706548][/doublepost]

The devices sucks what it needs from the power cable and doesn't discharge the battery and then recharge by 1%. Sure, if you left it there for 5 years the battery would degrade from no use, but not overcharging. Just look at Apple's battery documentation.

Yes they do.

 

[hemon]

Does Android have shuttering, lags or frame drops problems as well? I mead for example the nexus 6p.

I really don't like this shuttering. El Capitan has the same problem to me with graphical glitches (try to put a finder-folder into the dock and than recall it: you will notice this glitch.) – sorry for my english.

 

[Skika]

RAM doesn't help with graphical stutter. That's the GPU and iOS. The GPU is more than sufficient for constant 60 FPS but iOS and Apple's Metal framework aren't perfect.

This isn't necessarily true, as the RAM is shared with the GPU as VRAM, like the iGPUs in Macs. RAM can have an impact on graphical performance.

 

[Krevnik]

How can demanding games load, and run completely fluidly on 2GB RAM but simple OS animations stutter?

Because games control their behavior very carefully. It's not about the animation itself, but the other work that happens before the animation starts, or during it. Spotlight can hit the network to grab the news listing, going to the home screen can hit the flash storage (icons, querying notifications for badges, etc). These are all slower than RAM, and it doesn't actually make sense that you must cache everything in RAM at any one time (it isn't even possible to do on the desktop).

A game on the other hand, trades off loading screens to load everything needed for a menu or level so that they don't have to pay any penalty for loading things off disk. Modern games will also stream data during a level off disk (for larger maps for example), but even then it is something done in the background long before the data is needed. Many places in iOS on the other hand, is loading the data as needed, which means sometimes I pay the penalty of having to go fetch it from disk or the network, and the network especially can be slow.

No doubt a future iOS update with sort it out ...

Depends. It could probably be made better if certain features were turned off.

 

[rui no onna]

Spotlight can hit the network to grab the news listing, going to the home screen can hit the flash storage (icons, querying notifications for badges, etc). These are all slower than RAM, and it doesn't actually make sense that you must cache everything in RAM at any one time (it isn't even possible to do on the desktop).

Lol, I was actually thinking it needed faster flash storage (in particular for random read/write).

 

[hemon]

Lol, I was actually thinking it needed faster flash storage (in particular for random read/write).

This has nothing to do with the shuttering: I used the animation bug (over Spotlight) for a while on my iPhone and iPad and I had no one animation problem!

 

[Krevnik]

Lol, I was actually thinking it needed faster flash storage (in particular for random read/write).

Which only helps when the data is local. If you have to wait for the round trip to populate something from the network (say, Safari suggestions), you are still hosed. And latency is the big killer here.

There's also interesting behaviors of certain animations in iOS that allow the user to force it along faster than it normally would go. If you pull down for spotlight quickly, it appears to bypass the animation entirely. There are a few other animated gestures like this where iOS will let you bypass the animation with a fast gesture. Other gestures don't.

But I also would love to see the stuttering in action. It'd help me understand it better from someone else's perspective.

This has nothing to do with the shuttering: I used the animation bug (over Spotlight) for a while on my iPhone and iPad and I had no one animation problem!

I actually have no idea what you were trying to say here. Could you clarify?

 

[iapplelove]

Even my original air is smooth, especially animations. Give it some time I'm sure it will work itself out.

 

[s2mikey]

Definitely iOS, then.


I wouldn't do that.

In the long run, it's not going to be good for the battery ...
[doublepost=1459673116][/doublepost]

I'm just cautious with my devices.

I have meticulously looked after my iPad 4 battery and it is just as good as when I bought it on day one ...
[doublepost=1459673183][/doublepost]

It will reduce the life of the battery, in the long run ...

Actually it will not harm the battery at all. It's not like years ago when chargeable batteries were in their infancy and were very touchy about being overcharged. You can research this yourself but you'll find that you can leave the device plugged and charged all the time and the battery reall doesn't care. Won't hurt a thing. Really.

 

[stylinexpat]

Did you not read how the fella with the larger iPad Pro (the one with 4GB of RAM) is also experiencing stutter?

It's an issue with iOS.

How can demanding games load, and run completely fluidly on 2GB RAM but simple OS animations stutter?

No doubt a future iOS update with sort it out ...

I look forward to an update that would resolve these issues.

 

[SuperKerem]

It discharges slightly, once reaching 100%.

Then tops it back up.
[doublepost=1459706209][/doublepost]

Im happy for you.
[doublepost=1459706548][/doublepost]

Yes they do.

No. You're just making stuff up - that is not how lithium ion batteries work.

It's actually better for the battery to charge it from 50% to 100% repeatedly, than to let it run down completely to 0% and then to charge it back up to 100%, as you say.

Calibrating the battery might (arguably) show more accurate readings, but that's only if you had a problem in the first place. It isn't better for the battery at all.

Again, you haven't got a clue what you're talking about!

EDIT:

“The sweet spot for lithium-ion batteries is to keep them charged between 50 and 80 percent. This allows for the charged ions to continue to work and protect the life of your battery."

By the way, my battery has got MUCH better after a couple of complete discharges followed by full charges (calibrations, basically).

Really now?

"The major threat to your battery is charge cycles,” Shane explains. “A charge cycle is where your battery goes from empty or near-empty to full — and every phone battery has a limited number of charge cycles before the end of its life.”

http://www.digitaltrends.com/mobile/expert-advice-on-how-to-avoid-destroying-your-phones-battery/

 

[hemon]

Which only helps when the data is local. If you have to wait for the round trip to populate something from the network (say, Safari suggestions), you are still hosed. And latency is the big killer here.

There's also interesting behaviors of certain animations in iOS that allow the user to force it along faster than it normally would go. If you pull down for spotlight quickly, it appears to bypass the animation entirely. There are a few other animated gestures like this where iOS will let you bypass the animation with a fast gesture. Other gestures don't.

But I also would love to see the stuttering in action. It'd help me understand it better from someone else's perspective.



I actually have no idea what you were trying to say here. Could you clarify?

I mean that the shuttering has nothing to do with some data that must be loaded. There is no shuttering if you disable animation with this bug:

 

[TheLondonFella]

Because games control their behavior very carefully. It's not about the animation itself, but the other work that happens before the animation starts, or during it. Spotlight can hit the network to grab the news listing, going to the home screen can hit the flash storage (icons, querying notifications for badges, etc). These are all slower than RAM, and it doesn't actually make sense that you must cache everything in RAM at any one time (it isn't even possible to do on the desktop).

A game on the other hand, trades off loading screens to load everything needed for a menu or level so that they don't have to pay any penalty for loading things off disk. Modern games will also stream data during a level off disk (for larger maps for example), but even then it is something done in the background long before the data is needed. Many places in iOS on the other hand, is loading the data as needed, which means sometimes I pay the penalty of having to go fetch it from disk or the network, and the network especially can be slow.



Depends. It could probably be made better if certain features were turned off.

A nice, informative explanation.

Thanks.

However, I have turned almost everything off!

The only thing I have turned on in Spotlight Search is Contacts.

Crystal is only thing turned on in Background App Refresh.

The only System Service in Location Services turned on is Find My iPhone.

Notifications are also at a bare minimum. Basically only Mail, Reminders, Calendar & Wallet.

Very strange ...
[doublepost=1459752810][/doublepost]

No. You're just making stuff up - that is not how lithium ion batteries work.

It's actually better for the battery to charge it from 50% to 100% repeatedly, than to let it run down completely to 0% and then to charge it back up to 100%, as you say.

Calibrating the battery might (arguably) show more accurate readings, but that's only if you had a problem in the first place. It isn't better for the battery at all.

Again, you haven't got a clue what you're talking about!

EDIT:

“The sweet spot for lithium-ion batteries is to keep them charged between 50 and 80 percent. This allows for the charged ions to continue to work and protect the life of your battery."


Really now?

"The major threat to your battery is charge cycles,” Shane explains. “A charge cycle is where your battery goes from empty or near-empty to full — and every phone battery has a limited number of charge cycles before the end of its life.”

http://www.digitaltrends.com/mobile/expert-advice-on-how-to-avoid-destroying-your-phones-battery/

So my iPad 4's battery is as good today as it was when I first bought it (day one) and "I haven't got a clue what I'm taking about"?!

You need to mind your language.

I'll have a discussion with you, but you can jog on if you think you can speak to me like that!

 

[KUKitch]

So my iPad 4's battery is as good today as it was when I first bought it (day one) and "I haven't got a clue what I'm taking about"?!

You need to mind your language.

I'll have a discussion with you, but you can jog on if you think you can speak to me like that!

So just to be clear, your anecdotal experience - which you must have meticulous documentation for to know that your iPad 4 lasts exactly as long as it did when you bought it years back - leads you to believe that you are more of an expert about how these batteries behave than the expert who works for a charging accessory company linked in the article? My own experience with the devices I charge overnight lends just as much weight to the discussion as your personal experience, that is, not much.

Also, one might think that the batteries in today's devices are somewhat different from those powering devices like your iPad 4... further developed in the time since you got it and all that jazz. Considering the many... MANY articles I've seen discussing the life of these batteries in full cycles and recommending that people not drain them before charging, it makes sense to me that smaller charging bouts would help prolong batteries like these and as such being plugged in overnight wouldn't make any negative difference - but then I'm not pretending to be an expert, just going off the information provided by those who actually are considered to be experts.

 

[SuperKerem]

So my iPad 4's battery is as good today as it was when I first bought it (day one) and "I haven't got a clue what I'm taking about"?!

You need to mind your language.

I'll have a discussion with you, but you can jog on if you think you can speak to me like that!

That literally means nothing. Firstly, it's physically impossible for the battery to be as good today as when you first bought it.

'OH I've got my PowerBook G4 from 2005, I set it on fire and the battery is still just as good, now I'm an expert on batteries!!1!'

So, you present no evidence, of course. At least you gave us a nice little entertaining story!

Speak to you like what? Feel free to 'jog on' yourself if you've got your panties in a twist after I tell you you haven't got a clue about this, which is clearly true.