[mono-android] Profiling application
Hello, I have never done any extensive profiling (performance analysis) work and still don't really need it actually. But as my application is running too slowly I would like to spot the caveats of my code. It could be as well be a problem of memory as processor usage. In Visual Studio (2010) I saw this menu called Analyze which allow to trace memory allocations and processor time. This is really nice but I do not see any way to make it work with Monodroid. On Android it seems like I should use Traceview. But again I do not know if it's even possible with Monodroid (Until now my attempts were unsuccessful). What do you use to analyze the performance of your code? -- View this message in context: http://mono-for-android.1047100.n5.nabble.com/Profiling-application-tp5710923.html Sent from the Mono for Android mailing list archive at Nabble.com. ___ Monodroid mailing list Monodroid@lists.ximian.com UNSUBSCRIBE INFORMATION: http://lists.ximian.com/mailman/listinfo/monodroid
Re: [mono-android] Profiling application
We don't use a profiler with M4A, so I don't have one to suggest, but performance problems can many times be due to performing CPU-intensive operations on the UI thread. If you are doing that, I strongly suggest you don't. Any kind of complex calculation or database access should be done using a background thread - a mechanism such as ThreadPool.QueueUserWorkItem(...) works well for us. http://msdn.microsoft.com/en-us/library/system.threading.threadpool.queueuserworkitem.aspx One important gotcha is that you need to call Context.RunOnUiThread(...) when updating the UI from the background thread. Chris Tossing Software Engineer G4S Technology Software Solutions LLC Direct Dial: +1 (781) 457-0779 Cell:+1 (847) 942-0359 chris.toss...@usa.g4s.com www.1f.com 21 North Avenue, Burlington, Massachusetts 01803 USA Please consider the environment before printing this email -Original Message- From: monodroid-boun...@lists.ximian.com [mailto:monodroid-boun...@lists.ximian.com] On Behalf Of gpe Sent: Tuesday, July 17, 2012 10:45 AM To: monodroid@lists.ximian.com Subject: [mono-android] Profiling application Hello, I have never done any extensive profiling (performance analysis) work and still don't really need it actually. But as my application is running too slowly I would like to spot the caveats of my code. It could be as well be a problem of memory as processor usage. In Visual Studio (2010) I saw this menu called Analyze which allow to trace memory allocations and processor time. This is really nice but I do not see any way to make it work with Monodroid. On Android it seems like I should use Traceview. But again I do not know if it's even possible with Monodroid (Until now my attempts were unsuccessful). What do you use to analyze the performance of your code? -- View this message in context: http://mono-for-android.1047100.n5.nabble.com/Profiling-application-tp5710923.html Sent from the Mono for Android mailing list archive at Nabble.com. ___ Monodroid mailing list Monodroid@lists.ximian.com UNSUBSCRIBE INFORMATION: http://lists.ximian.com/mailman/listinfo/monodroid The details of this company are as follows: G4S Technology Limited, Registered Office: Challenge House, International Drive, Tewkesbury, Gloucestershire GL20 8UQ, Registered in England No. 2382338. This communication may contain information which is confidential, personal and/or privileged. It is for the exclusive use of the intended recipient(s). If you are not the intended recipient(s), please note that any distribution, forwarding, copying or use of this communication or the information in it is strictly prohibited. Any personal views expressed in this e-mail are those of the individual sender and the company does not endorse or accept responsibility for them. Prior to taking any action based upon this e-mail message, you should seek appropriate confirmation of its authenticity. This e-mail has been scanned for all viruses by MessageLabs. ___ Monodroid mailing list Monodroid@lists.ximian.com UNSUBSCRIBE INFORMATION: http://lists.ximian.com/mailman/listinfo/monodroid
Re: [mono-android] Profiling application
Ooh that is a good point! My application is for now only drawing on the Canvas but all the pre-processing of the shapes etc is done on the same thread. Even though it always has been in the plan to separate everything in correct threads, it's still to be done. That could be enough to solve our current slowness we have (250ms for a drawing, some path to draw and fill). Thanks for the hint! On Tue, Jul 17, 2012 at 10:38 PM, Tossing, Chris chris.toss...@usa.g4s.comwrote: We don't use a profiler with M4A, so I don't have one to suggest, but performance problems can many times be due to performing CPU-intensive operations on the UI thread. If you are doing that, I strongly suggest you don't. Any kind of complex calculation or database access should be done using a background thread - a mechanism such as ThreadPool.QueueUserWorkItem(...) works well for us. http://msdn.microsoft.com/en-us/library/system.threading.threadpool.queueuserworkitem.aspx One important gotcha is that you need to call Context.RunOnUiThread(...) when updating the UI from the background thread. Chris Tossing Software Engineer G4S Technology Software Solutions LLC Direct Dial: +1 (781) 457-0779 Cell:+1 (847) 942-0359 chris.toss...@usa.g4s.com www.1f.com 21 North Avenue, Burlington, Massachusetts 01803 USA Please consider the environment before printing this email -Original Message- From: monodroid-boun...@lists.ximian.com [mailto: monodroid-boun...@lists.ximian.com] On Behalf Of gpe Sent: Tuesday, July 17, 2012 10:45 AM To: monodroid@lists.ximian.com Subject: [mono-android] Profiling application Hello, I have never done any extensive profiling (performance analysis) work and still don't really need it actually. But as my application is running too slowly I would like to spot the caveats of my code. It could be as well be a problem of memory as processor usage. In Visual Studio (2010) I saw this menu called Analyze which allow to trace memory allocations and processor time. This is really nice but I do not see any way to make it work with Monodroid. On Android it seems like I should use Traceview. But again I do not know if it's even possible with Monodroid (Until now my attempts were unsuccessful). What do you use to analyze the performance of your code? -- View this message in context: http://mono-for-android.1047100.n5.nabble.com/Profiling-application-tp5710923.html Sent from the Mono for Android mailing list archive at Nabble.com. ___ Monodroid mailing list Monodroid@lists.ximian.com UNSUBSCRIBE INFORMATION: http://lists.ximian.com/mailman/listinfo/monodroid The details of this company are as follows: G4S Technology Limited, Registered Office: Challenge House, International Drive, Tewkesbury, Gloucestershire GL20 8UQ, Registered in England No. 2382338. This communication may contain information which is confidential, personal and/or privileged. It is for the exclusive use of the intended recipient(s). If you are not the intended recipient(s), please note that any distribution, forwarding, copying or use of this communication or the information in it is strictly prohibited. Any personal views expressed in this e-mail are those of the individual sender and the company does not endorse or accept responsibility for them. Prior to taking any action based upon this e-mail message, you should seek appropriate confirmation of its authenticity. This e-mail has been scanned for all viruses by MessageLabs. ___ Monodroid mailing list Monodroid@lists.ximian.com UNSUBSCRIBE INFORMATION: http://lists.ximian.com/mailman/listinfo/monodroid ___ Monodroid mailing list Monodroid@lists.ximian.com UNSUBSCRIBE INFORMATION: http://lists.ximian.com/mailman/listinfo/monodroid
