Win 7 superfecth/prefetch in hybrid system (SSD + HDD)

[beginner99]

I've read a ton of stuff about this but no one seems to have a clear answer. It is in general recommended (also by intel ssd toolbox) to turn superfetch and prefetch off if you have an ssd. But I also have applications, especially games, on a normal HDD. So therefore I believe I would benefit from these technologies.

Also some people claim superfetch does nothing even if it is turned on if it determines that the drive is fast enough. With "the drive" I assume the OS drive is meant.

Has anyone here played around with superfetch settings? (eg 0,1,2,3)

I'm also uncertain what the downside of superfetch is? I mean RAM i still much faster than an ssd so why turn it of at all?

 

[theevilsharpie]

Superfetch consumes I/O bandwidth. If you have a situation where minimizing I/O bandwidth usage is important (e.g. large-scale VDI, remote iSCSI volumes, etc.), disabling Superfetch may improve performance. Otherwise, I don't see any reason to disable it.

 

[LokutusofBorg]

The Windows 7 blog has a post about what they did to support SSDs in Windows 7, and in there they mention that Windows itself may disable SuperFetch on an SSD if it's fast enough.

I am of the mind that this is just one of the many completely unneeded SSD "optimizations". Just leave it alone and you'll be fine.

 

[tweakboy]

Leave it alone, cuz Windows will disable readyboost, and probably disables readyboot as well for the SSD and the HDDs will keep readyboot and readyboost on.

more things you touch more chances of crapola going on so listen to this post brother.

thx gl

 

[postmortemIA]

superfetch and disk defragmenter ignore SSDs drives. You may leave it on, it will work on hard drives that you have on system.