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Windows 7: Readboost without Superfech?

17 May 2010   #1
Xenomorphlover

Windows 7
 
 
Readboost without Superfech?

Hi guys,

Ive used my USB-stick to test the Readyboost function in Windows 7, and i have actually noticed a peformance-increase on some applications. The only thing that bugs me is the Superfetch service named "Sysmain". It is causing huge trashing and constant harddisk-actity which is makes my HDD and me crazy. So i turned it off - and Readyboost stopped working after restart . Is there another way to use the Readyboost feature without destroying my Harddisc by turning Superfetch on?


My System SpecsSystem Spec
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17 May 2010   #2
DeaconFrost

Windows 7 Ultimate x64 SP1
 
 

I'm having trouble understanding why anyone would ever want to turn off SuperFetch? Or is it just a matter of not knowing what SuperFetch is doing, or why your drive was churning?

Besides, if you have 1 GB or more of system memory, that "performance increase" you saw is best described as a placebo effect. The general rule with ReadyBoost is, if you have 1 GB or more of system memory, don't bother. It's been that was since Vista's release, and hasn't changed with Windows 7. It wasn't designed for systems that already have enough available memory.
My System SpecsSystem Spec
17 May 2010   #3
joel406

Windows 7 Ultimate x64/x86 Windows 7 Pro x64/x86 Windows 7 Home Premium x64/x86
 
 

It's hard to say just what ready boost helps and what it dosent. I dedicated 2 4gig flash drives to ready boost and I already had 6glgs of RAM. Some things seem faster and I run a Core 2 Quad 9650. But Decon is right you should not disable Superfetch.
My System SpecsSystem Spec
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17 May 2010   #4
Xenomorphlover

Windows 7
 
 

Quote   Quote: Originally Posted by DeaconFrost View Post
I'm having trouble understanding why anyone would ever want to turn off SuperFetch?
ehhh i thought i made that clear? With superfetch on my harddisk is going crazy after booting windows, and the activity is very high everytime after booting the PC. With superfetch off, i notice no HDD activity after booting...and my system is not slowed down because superfetch is off....it seems even faster. The constant HDD activity is not good for the harddisk either....
My System SpecsSystem Spec
17 May 2010   #5
Bill2

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

You cannot use Readyboost if you disable Superfetch. That has to do with how readyboost utilizes Superfetch.

SuperFetch pre-loads commonly used applications into memory to reduce their load times. By default the necessary files are loaded into main memory, but using ReadyBoost, Windows can use alternate storage such as USB flash drives, thereby freeing up main memory. Although hdd's have higher data transfer rates, flash drives can be faster for small files or non-contiguos data.
My System SpecsSystem Spec
17 May 2010   #6
DeaconFrost

Windows 7 Ultimate x64 SP1
 
 

Quote   Quote: Originally Posted by Xenomorphlover View Post
ehhh i thought i made that clear? With superfetch on my harddisk is going crazy after booting windows, and the activity is very high everytime after booting the PC. With superfetch off, i notice no HDD activity after booting...and my system is not slowed down because superfetch is off....it seems even faster. The constant HDD activity is not good for the harddisk either....
The only thing made clear is that you don't seem to understand what SuperFetch is all about. If you had it enabled from the get go, which is the default, you wouldn't have the thrashing "problem". I'd suggest doing a bit of reading into SuperFetch to understand why it is thrashing your HDD (hint, it is playing catch-up since you had it disabled). If you read into what SuperFetch does, you'll understand why it is downright foolish to have it disabled. You invalidate one of the biggest advantages Vista and Windows 7 have over XP.

You also should think about updating your system specs so we can give more accurate answers, especially based on the amount of system memory you have.
My System SpecsSystem Spec
17 May 2010   #7
Krispy1

Windows 7 Ultimate 64bit
 
 

superfetch should be on, it helps manage ram usage
My System SpecsSystem Spec
17 May 2010   #8
surfasb

Windows 7
 
 

Yeah, Superfetch will show increased harddrive activity the first few days it is on due to trying to learn which programs you fire up the most. Slowly, it improves loading performance with every application run.

But once it does, it is a gamebreaker.

It is such an improvement over non-Superfetch systems that every benchmark site knows to shut it off otherwise it will considerable skew application results.
My System SpecsSystem Spec
17 May 2010   #9
gregrocker

 

The "thrashing" you refer to is Superprefetch initializing. It should calm down after it determines your usage patterns which is what it does. This is the premier genius feature of Win7.

Check your Event Viewer>Admin view, the Performance-Diagnostics log and Generate a System Health Report at Control Panel\All Control Panel Items\Performance Information and Tools\Advanced Tools to see if there might be another cause related to your processor.

Readyboost on the other hand is just an external page file. Better to add actual RAM than virtual which is limited by the speed of USB and the stick.
My System SpecsSystem Spec
18 May 2010   #10
Xenomorphlover

Windows 7
 
 

Quote   Quote: Originally Posted by DeaconFrost View Post
If you had it enabled from the get go, which is the default, you wouldn't have the thrashing "problem"
Thank you Deacon (you can bite me anytime ) and the others for clearing the issue, i guess i will turn Superfetch on and see if the thrashing really calms down after a few days. BTW i have 2 GB Ram - i thought "Readyboost" would improve the performance when i use applications that need a lot of RAM.
My System SpecsSystem Spec
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 Readboost without Superfech?




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