Hi Darren, I know your app isn't hung, but some of the principles described in [1] might apply.
It is theoretically possible that an application gets into a situation where it is constantly trying to validate itself and thus the CPU never goes idle but the UI is operational. If I were in your shoes I would not worry about drag/drop and just see what AS is running when the app is "idle" but CPU is still running. HTH, -Alex [1] https://flexcloset.wordpress.com/2016/10/20/flex-app-hung/ On 4/3/17, 1:45 AM, "DarrenEvans" <[email protected]> wrote: >Hiya, > >We have a very large enterprise Flex/Flash application which makes >extensive >use of IBM's ILOG Elixir Gantt component. > >Since Windows 10 we have, internally, experienced lag when interacting >with >the gantt charts so bad it made the application unusable. This was using >IE11 and experienced on only a handful of machines. We noticed that the >problem was not experienced if the application was run under Chrome, so >for >machines that had the problem we simply got the users to switch to Chrome. > >However, we now have a client where the majority of their machines are >exhibiting the problem. Due to strict internal software policies they >cannot >simply swap to using Chrome or another browser. > >After investigating this a little bit, on machines with the problem, we >noticed that even when the application was idle the CPU usage for IE was >anywhere from 5% - 30% it would never drop back to 0%. > >Hooking up Adobe Scout to the application we found that over a period of 2 >seconds, while using a drag and drop operation there were *nearly 9,000 >tooltipChanged events fired* and nearly 3,000 uodateChanged events. These >events totalled ~50% of the processing time. In contrast, on a machine >behaving fine, we performed the same operation and only 2 of these events >got fired. > >Anyone seen this kind of behaviour in Windows 10/ IE 11? Any ideas on what >we could do? > >Personally it seems like a FlashPlayer/IE 11/Windows 10 issue but I don't >really know where to go or what to do to try and resolve this! > >Kind Regards, >Darren > > > > > > > >-- >View this message in context: >https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fapache-fle >x-users.2333346.n4.nabble.com%2FCrippling-Lag-Windows-10-IE11-FlashPlayer- >IBM-ILOG-Elixir-tp14958.html&data=02%7C01%7C%7C8e7890d4552d4e67a8d808d47a6 >f071b%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636268064657391557&sdat >a=u5D2brsinVBjqsK8C4lzsc3%2BTths8%2FCMq4HF6YA4RMk%3D&reserved=0 >Sent from the Apache Flex Users mailing list archive at Nabble.com.
