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Defrag Tools: #33 - CLR GC - Part 1

35 minutes, 56 seconds


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In this episode of Defrag Tools, Andrew Richards, Maoni Stephens and Larry Larsen walk you through the CLR Garbage Collector. Maoni is the Principal developer for the GC on the CLR team.

Maoni's WebLog
Channel9 - CLR 4 Garbage Collector - Inside Background GC
Channel9 - CLR 4.5: Maoni Stephens - Server Background GC
MSDN Magazine - Investigating Memory Issues

[00:00] - What is a Garbage Collector (GC)?
[02:40] - How has the GC changed?
[06:02] - Memory issues
[08:57] - Stress Log (!sos.dumplog)
[10:08] - Troubleshooting and Performance
[12:20] - Demo App
[14:20] - !sos.eeheap -gc
[18:08] - !sos.dumpheap -stat
[20:38] - !sos.dumpheap -mt <mt> (Method Table)
[21:58] - !sos.dumpobj / !sos.do (Dump Object)
[24:15] - Performance Monitoring (SOS, PerfView, Performance Monitor)
[28:06] - Measure immediately after an action, not at a cadence
[29:45] - x clr!WKS::GCHeap::GcCondemnedGeneration (Current GC being collected)
[31:15] - bp clr!WKS::GCHeap::RestartEE (Break after a GC)
[35:30] - More next week...


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