Xamarin Profiler 0.12 preview released

RodrigoMoyaRodrigoMoya ESXamarin Team Xamurai
edited April 2015 in Visual Studio

As always, find the new release at the Profiler landing page

Release notes


  • Support MLPD v8
  • Support installed and relocated mono runtimes (via PROFILER_MONO_RUNTIME env var)
  • Call tree without method enter/leave
  • Big performance improvements
  • Take into account method leave with exceptions
  • Display current memory usage in Allocations’ chart (for runtimes with perf counters)
  • Allow sorting of Allocations List by Caller
  • Re-enable template selector
  • Re-enable library dialog
  • Detect when Android activities die
  • Display console output for Android runs
  • ‘Take snapshot’ button now in toolbar
  • Clean up markers for generics and runtime wrapper methods


  • Get rid of single instance restriction
  • Add about dialog
  • Move Inverted/By thread call tree to right panel
  • Display stack traces for snapshot allocations
  • Improve list/tree views performance and look&feel
  • Display full namespaces in Snapshots view
  • Make Call Tree the default view for Time instrument
  • Set window’s title when live profiling
  • Make right side panel collapsable
  • Toolbar icons are now all of the same size
  • Ask for confirmation when closing a running session
  • Enable console view when live profiling


  • Add tooltips to toolbar buttons
  • Fix sorting in Snapshots view
  • Highlight class names in views

Bugs fixed

  • 25285 - Profiler does not remember the 'Snapshots' preference setting
  • 25282 - 'Auto Snapshots' textbox should enabled only if we select radio button 'Every' in tools/preferences
  • 26458 - Installer doesn't place Xamarin.Profiler to /Applications folder
  • 26952 - Profiler does not remember the 'General' preference setting
  • 25765 - Xamarin profiler for android crashes on multithreaded app
  • 26947 - Instrument section in windows profiler is not identical to mac profiler
  • 26946 - Profiler does not show correct version number in About
  • 27393 - Snapshot 0 is showing changes from snapshot 3
  • 27221 - Profiler does not generate graph and data when user select already saved .mlpd file in target dropdown
  • 25827 - Expended rows getting collapsed when user click on header to sort data in extended detail pan
  • 26504 - Windows profiler takes time to show data and graphs in profiler windows
  • 27555 - Already saved .mlpd file is open in same window, when user try to open it via 'File >Open...'
  • 27552 - Sorting on column 'Name' is not working properly for Snapshots
  • 27554 - Checkbox 'Separate by Thread' and 'Invert Call Tree' is not enable for 'Call Tree' for instrument 'Time Profiler'
  • 27422 - 'Auto Snapshots' textbox value is getting reset when user select checkbox 'On garbage collections'
  • 27890 - User is not able to select instrument in instrument selector dialog on first click of 'Choose' button
  • 27892 - App selected in instrument selector dialog is not selected in target dropdown on profiler main window
  • 27880 - Instrument and it's graph section is not aligned properly
  • 27885 - Profiler is getting crashed when user try to add instrument via button '+'
  • 27884 - Profiler is getting crashed when user click on button 'Cancel' in instrument selection dialog
  • 26947 - Instrument section in windows profiler is not identical to mac profiler
  • 27949 - Not able to add instruments to several open profiler windows
  • 27948 - Profiler does not show data and chart for already saved .mlpd file if a profiler window is already opened
  • 27955 - Enable-disable functionality of checkbox 'Separate by Thread' and 'Invert Call Tree' is not working correctally
  • 27912 - Profiler is getting crashed when we check-uncheck 'Invert call tree' check box
  • 27222 - When user scroll vertical scroll bar in track pan then instrument section does not scroll with chart


This is a preview release and there are definite limitations, including but not limited to:

  • No official support for profiling Release builds
  • Data sets are correct at time of collection but data mining and representation is preliminary. This will improve in future releases.
  • Samples list not available on Android
  • Support for Xamarin.Mac app profiling is preliminary
  • Enabling Boehm for iOS builds results in no useful data on devices, as allocations and calls need to be disabled
  • Performance with large apps has been improved, but still lacking some

We encourage users to get in touch and file bug reports so we can continue to make this tool more useful and more stable.

Sign In or Register to comment.