Open Radar

 
Summary:
When I transfer an app to Instruments from the CPU gauges, it doesn't really work.  The app is unresponsive to clicks. The simulator itself seems to be alive.

Attached is a video showing it in action.  It's kind of long - but shows the app being handed off to instruments and failing. Then instruments being invoked directly (via command-I), which works, then back to a hand-off situation, where it fails. And then a second try making sure there's no core audio involved.

attached are the console messages filtered for Xcode.  There were no log search results for a filter of 'instruments'

Steps to Reproduce:
1. run the app in xcode
2. go to the CPU gauge page
3. Transfer to Instruments

Expected Results:
4. instruments cranks up and I can use my app

Actual Results:
4 Instruments cranks up but the app is unresponsive.

Version:
Version 8.0 beta 2 (8S162m)
10.11.5 (15F34)


Notes:
It's really not that big a deal - just run instruments directly, but
when it happens day-in, day-out, it's just another heavy-sigh
death-of-a-thousand-cuts that makes using Xcode unpleasant.


Configuration:
I've seen this fairly often in Xcode 7.3 also, to the extent I never try transferring to instruments from there.

Attachments:
'bad-instrument-handoff.mp4' and 'xcode-messages.log' were successfully uploaded.