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Slow performance on laptops with virus checker (Read 2601 times)

solisgsandc YaBB Newbies Offline Posts: 40 Joined: Dec 18^th, 2009	Slow performance on laptops with virus checker Dec 23^rd, 2009 at 6:14pm	Print Post
	On my desktop, when dragging MindFusion nodes, the dragging is very fast. However with all laptops with the network virus protection on, dragging components seems to slow it down. Both laptops and desktops are dual core with decent video cards. The laptop is using NVidia Quadro NVS 135M I checked the Symantec Endpoint Protection and seems like the dragging action in the laptops are delayed when a Block local file sharing is happening. Local port 137, 138 are being used. the application ntoskrnl.exe is doing this work. Is there something that I should be checking on the code to avoid any delay on the dragging action.


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Slow performance on laptops with virus checker Reply #1 - Dec 23^rd, 2009 at 6:57pm	Print Post
	Has it found any suspicious nodes? 8) We don't have much control over when the nodes are actually rendered. The control updates their position in the WPF visual tree, and I think WPF then renders the tree at some point from a background thread. The Symantec protection thread might not be giving enough processor time to the WPF rendering thread I guess...


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Slow performance on laptops with virus checker Reply #2 - Dec 23^rd, 2009 at 7:03pm	Print Post
	You might try calling this method from a MouseMove handler to force rendering: http://graemehill.ca/wpf-rendering-thread-synchronization There are plenty of other tips on the Internet: http://www.google.com/search?hl=en&q=wpf+rendering+thread&aq=0&oq=wpf+rendering&... I hope that helps, Stoyan


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