Windows 10: Windows Superfetch on SSD

I did do that Mike, I used this application PassMark AppTimer - Measure application startup time when I was trying to guesstimate what compression would be fastest on my system. (xpress8k was best for me with fast SSD and mediocre CPU, xpress16K was better with a slower SSD).

The point is that in almost all cases the OS is going to have a better idea what to do with memory management than you or I. Probably. Better than me anyway.

Sure you can randomly turn off services and it might make an improvement. If however turning off Prefetch would always (or even often) be more efficient with SSD then I honestly don't think MS would leave it. What for? They can't be so incompetent as to be unaware of SSDs and certainly wouldn't leave it on to deliberately cripple the OS.

The idea is silly if you ask me.

 

Hi,

It will start faster regardless of whether "Prefetch" is enabled or not.

The underlying idea is also to avoid unnecessary I/O trafic and to reduce the number of unnecessary writes on an SSD.
With the vastly increased TBW on last gen SSDs this point may well be moot but still, I can't seem to measure any loss of speed with such services as prefetch, etc. disabled.

With plenty of a DRAM present there are far more effective softwares around than the ones offered by MS.

Cheers, *Wink

 

It was doing it's job before, specially on slow HDDs, I know, I did that test long time ago. Problems were that there was much less RAM available and disks were smaller and except just accelerating program start it was also taking resources to run those programs. That's why it was sometimes beneficial to turn it off. It was just give and take and you had to choose what to do and what's more important. With SSDs, them being much faster it may not have that much of influence but resources are plentiful nowadays so even if it helps a little bit for starting programs, there's no really big change in further system performance.
There was a panic with early SSDs to limit writing to it as much as possible but prefetch doesn't really write much on disk, once you started all programs at least once, very,very little wring was done to disk.