After pre-fetching...Now super-fetching...

anandk · 20-01-2007, 10:03 AM

SuperFetch, a feature within Vista, predicts which applications are used when, then pre-loads them so that they're instantly available.

"Pre-fetching applications to speed up access -- or at least boost the perceived speed of a PC -- is nothin new, but SuperFetch is a first for Windows. "Most of those [earlier pre-fetch solutions] are focused on low-level decisions. What's happening here [with SuperFetch] is at the level of user modeling. It's learning about sequences of actions in a context-sensitive way.

Work by Microsoft's R&D group played a part in revamping Windows, a researcher said Friday, but not all the toil made it into Vista.

Microsoft Research contributed to the SuperFetch effort, a feature within Vista that predicts which applications are used when, then pre-loads them so that they're instantly available..."

Microsoft Predicts The Future With Vista's SuperFetch

koolbluez · 20-01-2007, 10:55 AM

Ya... I even heard of a rumour that XP SP2 itself has a secret super-fetch in it as experiment.

To enable super prefetch, all u had to do is to insert :

Quote:

Data Type: DWORD
Value Name: EnableSuperfetch
Value: 1

in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Session Manager\Memory Management\PrefetchParameters

But then, Windows internals guru Mark Russinovich, he said this won’t work as “SuperFetch” string isn’t even in the XP kernel !!!

Some tweaking sites also state that registry Prefetcher settings

Quote:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Session Manager\Memory Management\PrefetchParameters] "EnablePrefetcher"=dword:00000003

can be replaced by

"EnablePrefetcher"=dword:00000005 for better performance and lower boot time.
Actual prefetch increases boot time but enhances overall system performance.

MicroSoft states that valid values are 0,1,2,3 and there is no documentation whatsoever which states that a value of 5 enhances performance. I didn't get any on my part.

Some of XP Myths

Pathik · 20-01-2007, 10:56 AM

hey good news.....

koolbluez · 20-01-2007, 11:53 AM

More talk on the same

anandk · 20-01-2007, 01:03 PM

nice addition koolbluez. repd u

ax3 · 20-01-2007, 03:57 PM

super OS (vista) .......... super pre-fetching ............

2 gud .........

Ankur Gupta · 20-01-2007, 07:25 PM

When an OS requires 2GB RAM for smooth operation..such features don't really make it a gud OS....XP on 1 GB RAM will run better thn Vista on 1 GB...that makes a difference for users in India...