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7/8/2014
Review tips for testing File-Based Write Filter (FBWF) cache performance on your Windows Embedded 8 Standard (Standard 8) device.
Monitor the File-Based Write Filter (FBWF) overlay cache usage under real-world scenarios to verify that the cache size is appropriate for the intended use of the system. Strike the optimal balance between the size allocated to the overlay, the RAM on the system, and the requirements of the Windows Embedded 8 Standard (Standard 8) applications. FBWF provides the following ways to monitor FBWF overlay cache use:
- The command-prompt tool fbwfmgr using the /overlaydetail parameter.
- The FbwfGetMemoryUsageEx function.
If the overlay cache is running out of space too quickly, test your configuration either with a larger cache or with preallocation disabled.