Over December, I have been able to work on Xamarin.Forms + Android startup perf. Here is the initial results I'm seeing with the accumulation of all my changes.
All runs were on a Pixel 3 XL
Debug:
01-15 23:46:01.157 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +859ms
01-15 23:46:04.919 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +843ms
01-15 23:46:08.708 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +918ms
01-15 23:46:12.386 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +840ms
01-15 23:46:16.121 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +842ms
01-15 23:46:19.888 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +858ms
01-15 23:46:23.670 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +861ms
01-15 23:46:27.403 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +847ms
01-15 23:46:31.153 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +843ms
01-15 23:46:34.919 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +851ms
Average(ms): 856.2
Std Err(ms): 7.28590724923427
Std Dev(ms): 23.0400617283124
Release:
01-15 23:47:37.190 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +617ms
01-15 23:47:40.907 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +605ms
01-15 23:47:44.637 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +600ms
01-15 23:47:48.405 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +616ms
01-15 23:47:52.157 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +610ms
01-15 23:47:55.890 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +606ms
01-15 23:47:59.639 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +615ms
01-15 23:48:03.341 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +608ms
01-15 23:48:07.071 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +614ms
01-15 23:48:10.789 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +610ms
Average(ms): 610.1
Std Err(ms): 1.73493515728975
Std Dev(ms): 5.48634668973808
Debug:
01-15 22:13:45.646 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +843ms
01-15 22:13:49.647 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +820ms
01-15 22:13:53.678 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +822ms
01-15 22:13:57.680 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +824ms
01-15 22:14:01.644 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +821ms
01-15 22:14:05.610 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +829ms
01-15 22:14:09.593 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +835ms
01-15 22:14:13.576 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +824ms
01-15 22:14:17.589 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +823ms
01-15 22:14:21.626 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +832ms
Average(ms): 827.3
Std Err(ms): 2.33832798763941
Std Dev(ms): 7.39444235745859
Release:
01-15 23:32:36.089 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +582ms
01-15 23:32:40.153 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +565ms
01-15 23:32:44.172 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +575ms
01-15 23:32:48.188 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +573ms
01-15 23:32:52.188 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +586ms
01-15 23:32:56.154 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +577ms
01-15 23:33:00.138 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +594ms
01-15 23:33:04.137 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +581ms
01-15 23:33:08.105 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +574ms
01-15 23:33:12.103 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +580ms
Average(ms): 578.7
Std Err(ms): 2.50355303075005
Std Dev(ms): 7.91692982018773
Debug:
01-16 00:13:45.212 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s105ms
01-16 00:13:48.942 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s83ms
01-16 00:13:52.659 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s88ms
01-16 00:13:56.358 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s89ms
01-16 00:14:00.093 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s92ms
01-16 00:14:03.824 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s94ms
01-16 00:14:07.558 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s84ms
01-16 00:14:11.355 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s85ms
01-16 00:14:15.056 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s80ms
01-16 00:14:18.806 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +1s93ms
Average(ms): 1089.3
Std Err(ms): 2.27082951070015
Std Dev(ms): 7.18099343173816
Release:
01-16 00:15:02.308 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +723ms
01-16 00:15:06.059 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +715ms
01-16 00:15:09.773 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +709ms
01-16 00:15:13.541 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +714ms
01-16 00:15:17.307 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +724ms
01-16 00:15:21.058 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +703ms
01-16 00:15:24.790 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +715ms
01-16 00:15:28.538 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +716ms
01-16 00:15:32.271 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +720ms
01-16 00:15:36.071 1473 1503 I ActivityTaskManager: Displayed com.xamarin.forms.helloforms/crc6450e568c951913723.MainActivity: +712ms
Average(ms): 715.1
Std Err(ms): 2.00249843945008
Std Dev(ms): 6.33245607959503
App w/ 100 Label w/ Binding 16.4 Xamarin.Forms 4.5.0 branch + xamarin-android/master + outstanding PRs
TODO
Debug:
Release: