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Is there any way that you can monitor if ReadyBoost actually has an impact on performance? I don't really experience much improvement.

Also can it be useful for Visual Studio anyway or would that never help?

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up vote 2 down vote accepted

ReadyBoost is best noticable in start times of applications, given you don't use a SSD.

So, with ReadyBoost, Visual Studio should start faster once it's in the ReadyBoost cache.

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Any way to figure out if it is in the ReadyBoost cache? – Koen Apr 6 '11 at 8:48
@Koen: Try to check what files are accessed with the Resource Monitor. – Tom Wijsman Apr 6 '11 at 10:00

It doesn't exactly give you metrics on how much of a performance gain you're getting, but on Windows 7 there is a set of performance counters (perfmon.exe) called "ReadyBoost Cache" that will at least let you know when ReadyBoost is actually doing something. I notice lots of read activity in the cache when building a solution.

ReadyBoost Cache Performance Counters Screenshot

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