Programatically Prioritise Disk I/O in Win7

Question

From the website of "Process Lasso", they claim:

Automatically temporarily lower the CPU priority class and/or I/O priority of monopolizing process(es)

Does anyone know how to specify the I/O Priority for a specific process/thread? To clarify the problem, I run Fluid Simulations on my machine using RealFlow which plays nicely with the CPU but throws around 20GB-sized files quite frequently. This results in a huge disk queue and other, lightweight apps hang.

I'd like to write a simple wrapper that launches RealFlow, drops the I/O priority and exits - something as simple as...

Sub Main() ... Dim RealFlowProcess = Process.Start("RealFlow.exe", "Args") RealFlowProcess.??? = ??? ... End Sub

I'd prefer a pure .Net solution but frankly anything that runs on a dev's box without too much overhead would be acceptable (Powershell/C++/etc).

Community · Accepted Answer · 2017-03-20 10:04:20Z

Here is a discussion about that topic that contains the answer and a lot of background info: https://superuser.com/questions/136021/how-to-change-i-o-priority-of-a-process-or-thread-in-win7

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