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Windows 7 does not release memory after process completes RRS feed

  • Question

  • I'm having issues with a Windows 7 Pro 64-bit machine. We do large structural simulations, and so require a lot of RAM for some of our jobs. This machine has 24 GB of RAM installed. We are running a simulation that uses about 2 GB of RAM each, but we are running several of these at the same time and successively. What's happening is as each evaluation completes the used RAM never drops back off. The process that was using the RAM is gone, but the memory is not released or something. As we run several of these in succession, we hit our 24 GB limit eventually, and the system slows to a crawl. If we run a single instance of the simulation and let the machine sit it will slowly (over the course of an hour or more) release the memory. The only way to get it back down to the baseline level of memory usage is by restarting.

    I have disabled Superfetch as a troubleshooting check, and it still happens. We can run the same jobs on a Windows XP 64-bit machine and do not have this issue.

    Tuesday, January 18, 2011 7:59 PM

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