Defrag Tools: #48 - WPT - Memory Analysis - Pool

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Description

In this episode of Defrag Tools, Andrew Richards, Chad Beeder and Larry Larsen continue walking you through the Windows Performance Toolkit (WPT). This is part 1 of 3 episodes on memory usage/leaks. Example xPerf scripts.

Resources:
Defrag Tools: #6 - RAMMap
Defrag Tools: #22 - WinDbg - Memory Kernel Mode
Pushing the Limits of Windows: Paged and Nonpaged Pool
Sysinternals RAMMap
Sysinternals LiveKd
Windows Internals Book - NotMyFault

Timeline:
[00:00] - Paged and Nonpaged Pool
[03:10] - RAMMap
[06:23] - LiveKd - !poolused 2
[08:22] - xperf -on PROC_THREAD+LOADER+POOL -stackwalk ...
[09:00] - NotMyFault
[09:55] - WPA
[10:50] - Type - Allocated Inside (AI) & Outside (AO), Freed Inside (FI) & Outside (FO)
[14:33] - Summary

Example: "xperf - Collect Pool.cmd"

@echo off
echo Press a key when ready to start...
pause

echo .
echo ...Capturing...
echo .

xperf -on PROC_THREAD+LOADER+POOL -stackwalk PoolAlloc+PoolFree+PoolAllocSession+PoolFreeSession -BufferSize 1024 -MinBuffers 256 -MaxBuffers 256 -MaxFile 256 -FileMode Circular

echo Press a key when you want to stop...
pause
echo .
echo ...Stopping...
echo .

xperf -stop -d pool.etl

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