To obtain the Windows Dynamic Cache Service, download it here. The use of these functions is the only supported method to restrict the consumption of physical memory by the system file cache. The Microsoft Windows Dynamic Cache Service is a sample service that demonstrates one strategy to use these APIs to minimize the effects of this issue.
Installing and using the Microsoft Dynamic Cache Service does not cause the exclusion of support for Microsoft Windows. This service and its source code are provided as an example of how to use the Microsoft supported APIs to reduce the growth of the file system cache.
You can obtain the service and source code from the following Microsoft website:. Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. Need more help? Expand your skills. Get new features first. Was this information helpful? Yes No. Thank you! Any more feedback?
The more you tell us the more we can help. Can you help us improve? Resolved my issue. Clear instructions. Easy to follow. No jargon. On these systems the System File Cache's working set can be very large and is typically about equal to the size of physical RAM. If this happens, then process working sets are paged out and there is contention for physical pages — resulting in performance degradation.
The blog post "Too Much Cache" contains sample code and a compiled utility that can be used to manually set the System File Cache's working set size. Scoping the Issue: Although we normally see this issue on 64 bit file servers and backup servers and Microsoft Data Protection Manager DPM Servers we do at times see this on bit machines as well.
What occurs is that the system will, through its use of cache, consume all available memory until the system becomes resource starved and unable to satisfy any new requests for physical memory. Additional data required may include the following:. That brings us back to the only provided solution - use the provided APIs. While this isn't an ideal solution, it does work, but with the limitations mentioned above.
While this service does not completely address the limitations above, it does provide some additional relief. With this service, you can define a list of processes that you want to prioritize over the System File Cache by monitoring the working set sizes of your defined processes and back off the System File Cache's working set size accordingly.
It is always running in the background monitoring and dynamically adjusting the System File Cache's working set size. The service provides you with many options such as adding additional slack space for each process' working set or to back off during a low memory event.
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