Notice (2018-05-24): bugzilla.xamarin.com is now in
Please join us on
Visual Studio Developer Community and in the
Mono organizations on
GitHub to continue tracking issues. Bugzilla will remain
available for reference in read-only mode. We will continue to work
on open Bugzilla bugs, copy them to the new locations
as needed for follow-up, and add the new items under Related
Our sincere thanks to everyone who has contributed on this bug
tracker over the years. Thanks also for your understanding as we
make these adjustments and improvements for the future.
Please create a new report for Bug 40523 on
Developer Community or GitHub if you have new
information to add and do not yet see a matching new report.
If the latest results still closely match this report, you can use the
In special cases on GitHub you might also want the comments:
GitHub Markdown with public comments
Created attachment 15769 [details]
Attached is a sample project that creates controls at runtime. It's much slower in Forms. Looking for an explanation of why, and if this is within acceptable parameters of performance for Forms.
**Steps to Reproduce:**
1. Run the attached Forms Android project on an Android device.
2. Press the button.
Do the same for the "native" project.
An alert will appear to show elapsed ms.
Performance times should be similar between the Native and Forms projects.
**Build Date & Platform:**
On my nexus 5, the Forms project takes about ~1 second. The native project takes about 100-200ms.
I would really like to see the Xamarin team comment on XF Android performance.
I've also filed several bugs about XF on Android being much slower than iOS and much slower than native, but so far all of them have been left in the "NEW" state or resolved as invalid.
My iPhone 4S from 2011 runs XF 3 times faster than my Nexus 5.
It's really annoying to have no return on these performances that are clearly not satisfactory.
Something should be done for XF performances on Android. They seems to become worse as the app grows, until it become unusable (7-10 second between refreshes, while it's almost instantaneous on iOS). The XF Android code clearly does not scale.
*** Bug 44058 has been marked as a duplicate of this bug. ***