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iOS 9.2 Beta 3 Bug Fixes, Changes and Performance Adjustments

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The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
Fellow iOS Bug Reporters!

Those of you submitting bugs for animations that drop frames or are laggy and stuttering, please be sure to generate a stackshot log file once you can reproduce the issue. I have 14 bug reports open, eight of which engineers have requested stackshot logs. You can follow the steps below to generate them and upload them to your bug report:

Stackshot steps:

1. Reproduce the issue you're reporting
2. Press the Home button on the face of the device and one of the volume buttons on the side of the device at the same time to create the stackshot file.

Note: Please press this button combination several times to capture multiple stackshots when the issue is occurring.

3. Sync your device with iTunes
4. Files starting with "stacks…" in this format "stacks-yyyy-mm-dd-xxxxxx.log," or in iOS 8 "stacks-yyyy-mm-dd-xxxxxx.ips," should appear after the sync is completed in a folder on your host computer like the ones listed below, with today's date in place of the yyyy-mm-dd portion of the string:

OS X:

~/Library/Logs/CrashReporter/MobileDevice/<iPhone name>/stacks-yyyy-mm-dd-xxxxxx.log or .ips

Note: "~/" your user folder or /Users/[your_user_name_here]/Library/Logs/... not the root level /Library/Logs/... path

Windows 8:

C:\Users\[Your User Name]\AppData\Roaming\Apple Computer\Logs\CrashReporter\MobileDevice\<device-name>\stacks-yyyy-mm-dd-xxxxxx.log, or .ips

Note: The AppData folder is hidden by default. Click the View menu item and check the "Hidden items" checkbox and AppData will appear in the list.

Windows 7 and Vista:

C:\Users\[Your User Name]\AppData\Roaming\Apple Computer\Logs\CrashReporter\MobileDevice\<device-name>\stacks-yyyy-mm-dd-xxxxxx.log, or .ips

Note: The AppData folder is hidden by default. Choose Folder and Search Options from the Organize menu in the file browser window, then click the View tab and change the "Hidden files and folders" option to "Show hidden files and folders".

Attach and upload each stackshot log file to your respective bug reports!

iOSBry
 
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iOSBry said:
Fellow iOS Bug Reporters!

Those of you submitting bugs for animations that drop frames or are laggy and stuttering, please be sure to generate a stackshot log file once you can reproduce the issue. I have 14 bug reports open, eight of which engineers have requested stackshot logs. You can follow the steps below to generate them and upload them to your bug report:

Stackshot steps:

1. Reproduce the issue you're reporting
2. Press the Home button on the face of the device and one of the volume buttons on the side of the device at the same time to create the stackshot file.

Note: Please press this button combination several times to capture multiple stackshots when the issue is occurring.

3. Sync your device with iTunes
4. Files starting with "stacks…" in this format "stacks-yyyy-mm-dd-xxxxxx.log," or in iOS 8 "stacks-yyyy-mm-dd-xxxxxx.ips," should appear after the sync is completed in a folder on your host computer like the ones listed below, with today's date in place of the yyyy-mm-dd portion of the string:

OS X:

~/Library/Logs/CrashReporter/MobileDevice/<iPhone name>/stacks-yyyy-mm-dd-xxxxxx.log or .ips

Note: "~/" your user folder or /Users/[your_user_name_here]/Library/Logs/... not the root level /Library/Logs/... path

Windows 8:

C:\Users\[Your User Name]\AppData\Roaming\Apple Computer\Logs\CrashReporter\MobileDevice\<device-name>\stacks-yyyy-mm-dd-xxxxxx.log, or .ips

Note: The AppData folder is hidden by default. Click the View menu item and check the "Hidden items" checkbox and AppData will appear in the list.

Windows 7 and Vista:

C:\Users\[Your User Name]\AppData\Roaming\Apple Computer\Logs\CrashReporter\MobileDevice\<device-name>\stacks-yyyy-mm-dd-xxxxxx.log, or .ips

Note: The AppData folder is hidden by default. Choose Folder and Search Options from the Organize menu in the file browser window, then click the View tab and change the "Hidden files and folders" option to "Show hidden files and folders".

Attach and upload each stackshot log file to your respective bug reports!

iOSBry
Click to expand...

Or you can download the public beta profile and the bug reporter app will collect the stackshots and offer to attach them for you.
 
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batting1000 said:
Or you can download the public beta profile and the bug reporter app will collect the stackshots and offer to attach them for you.
Click to expand...
You still have to generate them, no?

Based on the emails I've received from the engineers requesting that I generate them, they don't appear to be generated automatically.

iOSBry
 
iOSBry said:
You still have to generate them, no?

Based on the emails I've received from the engineers requesting that I generate them, they don't appear to be generated automatically.

iOSBry
Click to expand...

It asks you if you want to submit logs/screenshot. Are logs not stack shots?
 
Mlrollin91 said:
It asks you if you want to submit logs/screenshot. Are logs not stack shots?
Click to expand...
They're only stackshot logs if they start with "stacks…" in this format "stacks-yyyy-mm-dd-xxxxxx.log," or in iOS 8 "stacks-yyyy-mm-dd-xxxxxx.ips".

You have to generate them using the steps I provided above.

They need the stackshot log specifically for the dropped frames, lagging or stuttering animation issues.

iOSBry
 
iOSBry said:
They're only stackshot logs if they start with "stacks…" in this format "stacks-yyyy-mm-dd-xxxxxx.log," or in iOS 8 "stacks-yyyy-mm-dd-xxxxxx.ips".
Click to expand...
I have plenty of these stacks logs created in my diag logs, while reporting bugs using feedback assistant.
 
iOSBry said:
They're only stackshot logs if they start with "stacks…" in this format "stacks-yyyy-mm-dd-xxxxxx.log," or in iOS 8 "stacks-yyyy-mm-dd-xxxxxx.ips".

You have to generate them using the steps I provided above.

They need the stackshot log specifically for the dropped frames, lagging or stuttering animation issues.

iOSBry
Click to expand...

It includes stackshots in the logs it collects...I remember it attaching them to the reports I submitted for the iOS 9.0 public beta. I don't remember if it's automatic though, you may have to click a button to collect them or it'll ask. I also can't remember if it attaches all of them, a few, or the most recent one.
 
batting1000 said:
It includes stackshots in the logs it collects...I remember it attaching them to the reports I submitted for the iOS 9.0 public beta. I don't remember if it's automatic though, you may have to click a button to collect them or it'll ask. I also can't remember if it attaches all of them, a few, or the most recent one.
Click to expand...
For the purposes of submitting a bug report, Apple needs you to reproduce the issue and generate the stackshot log while the issue is occurring to ensure the stackshot log includes the relevant data.

iOSBry
 
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danbsfc said:
Absolutely 100% agree with you. The performance of B3 compared to B2 is night and day. My iPad 4 is now smooth, responsive and way more enjoyable to use. Top work this time Apple.
Click to expand...
Sounds like a better experience than the Air 2. Oh, iOS 9 sure is strange.
 
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C DM said:
There's being realistic and there's being utopian seeking perfect perfection. Nothing wrong with wanting and striving for that, just as there isn't anything wrong with wanting and striving for world peace.
Click to expand...

Being realistic is that my 2 month old, £700 6s Plus should perform the same or better with animations than my old 5s. Which it doesn't.
 
Fixes
  • Provisioning profile - fixed the issue where it sometimes would not appear in settings when loading apps from Xcode.
Click to expand...
YES! So happy this is fixed. I've been struggling to pin point this problem for a while now. I didn't know if it was the beta, Xcode, my iPad, my dev account, my apps. But its all better now. So happy.
 
Things feel much better optimised on iPad Air now. Not so sluggish in Spotlight and Notifications now. Almost usable again.
 
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Am3r1ca16 said:
I discovered 2 bugs. Both have to do with NC

1. If you slide down NC and then press the sleep button and then wake up the iPhone NC shows up for a brief second.

2. If you turn on reduce motion and then turn it off. The bars where the name of the widget is located is much darker than usual in NC.
Click to expand...


I get these same bugs!!! Man that is some serious bug detective skills u got there though. Wouldn't have figured this out otherwise lol
 
acedout said:
Things feel much better optimised on iPad Air now. Not so sluggish in Spotlight and Notifications now. Almost usable again.
Click to expand...
Spotlight and app switcher still lag and drop frames for me on iPad mini 2, everything seems identical to beta 2 but that is all still much better than 9.1.
 
Spotlight is much smoother on iPhone 6s Plus; framerate gate will soon become a distant nightmare.
 
XTheLancerX said:
Spotlight and app switcher still lag and drop frames for me on iPad mini 2, everything seems identical to beta 2 but that is all still much better than 9.1.
Click to expand...
For me it's almost as good as my iPhone 6S on the air now. I'm relieved! I did a clean DFU install of 9.1GM. and my 64Gb device is full of apps.
 
whats different in 9.2 compared to 9.1 that would make me want to install the 9.2 beta and not wait until the final comes out? any new feature?
 
My old iPad 2 has seen a tremendous improvement in beta 3. It feels very solid.
As well as my 6sPlus. Beta 3 is definitely a step in the right direction.
 
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