Profiler Preview 0.13

This is the 6th preview release of the Xamarin Profiler. Changes since last release include:


  • Remove “Enable snapshots” setting in Preferences dialog
  • Add ‘Open logs’ to Help menu
  • Improve memory usage
  • Add help menu item
  • Improve performance when processing snapshots
  • Hide Count column in Call Tree when not using method enter/leave
  • Fix event reading crash in Windows VMs
  • Store all object references in Snapshot events
  • Add inverse references right side panel for allocations list and snapshots views


  • Fix drill down on several levels
  • Fix crash when clicking on instrument area with no instruments
  • Deal correctly with empty data sets
  • Allow profiling as soon as a target and at least 1 instrument are selected
  • Fix instrument registration
  • Remove icons in drill down area
  • Disable target selector when profiling
  • Add dynamic right side panels based on the left side view
  • Resize right-side panel columns to fit content
  • Display Self allocations time in Allocations call tree (instead of Self time)


  • Fix MLPD location setting
  • New UI design
  • Don’t expand inspector area when double clicking a column
  • Fix ascending/descending indicators in detail views
  • Don’t flicker when switching selection in instrument selector
  • Disable call tree display options when in drill down mode
  • Add icons to allocations summary
  • Remove row number column in allocations list
  • Improve look of timeline header
  • Add collapse/expand button for right side panel
  • Fix Stop button responsiveness

Bugs fixed:

  • 27944 - Profiler does not generate and display data properly for instruments Allocations and Time Profiler in details pan
  • 28161 - User is not able to profile an android app
  • 27718 - Clean up markers for Generics
  • 28408 - Console tab is displaying for Time Profiler and got disappeared for Allocations
  • 28458 - Profiler crash on filtering items
  • 28233 - Objects not showing up in snapshots delta
  • 28237 - Missing Help->Open Log Directory like in XS
  • 27215 - Profiler does not generate identical graph for newly added instrument when we re-run the profiler for already saved .mlpd file
  • 28421 - Play button should be disabled when user does not select any instrument and does not select anything in target dropdown
  • 27552 - Sorting on column 'Name' is not working properly for Snapshots
  • 27875 - Profiler does not generate graph and data on second profiler run
  • 27420 - Android app is getting crashed when user is trying to start profiler


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
  • Android profiling doesn't work with Xamarin.Android update from Alpha channel

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

Xamarin Workbook

If it's not already installed, install the Xamarin Workbooks app first. The workbook file should download automatically, but if it doesn't, just click to start the workbook download manually.