[mapguide-internals] Stability and performance issues with MGOS 2.1
trevor.wekel at autodesk.com
Fri May 8 00:03:23 EDT 2009
I just took a read through the meeting minutes from the PSC and there was some discussion around selection, performance, and stability with MGOS 2.1. I have spent the last month investigating some of these issues and have some insights. Haris and others, please contact me directly.
I will be making some code submissions to fix a few things that I have already found. These submission affect both MapGuide and Fdo. And there will be more to come. No use duplicating effort here between Autodesk and the community. However, I could use some guinea pigs to test this stuff when I start to slam all this code in.
Bruce has already submitted a patch for web tier/server connectivity on my behalf http://trac.osgeo.org/mapguide/changeset/3847. Thanks Bruce!
This change along with a previous submission related to repository tuning http://trac.osgeo.org/mapguide/changeset/3847 have brought MapGuide on Windows to a point where it can begin to handle concurrent user loads in excess of 200+ users, depending on data set.
The next set of submissions which I need to make will deal with a variety of memory leaks in both MapGuide and Fdo. Large selections in a multi-user environment with MGOS 2.1 will exhaust virtual memory. I do have fixes in hand but have not tested it with all of the providers
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