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XP Tweak from Longhorn - Superfetch

762x51

168gr BTHP
#1
Interesting. Haven't tried it yet myself, but some folks on the AMD forum said it helped boot time a bit. Use at your own risk of course. :)


2nd article down:
------------------

http://theinquirer.net/?article=24749


"Subject: Microsoft claims Longhorn will be, er, faster

The only reason why its faster is they added a superfetch feature to the prefetcher. If you look at the key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\Prefetcher

you will notice in windows xp

EnablePrefetcher = 3 and you will notice in windows longhorn
EnableSuperfetch = 1

Well, guess what? You can put the EnableSuperfetch = 1 in windows xp and get the same speed.

Wow, Microsoft just added a feature that was already there in xp."
 

Perris Calderon

Moderator
Staff member
Political User
#3
this sounds a little suspicious...sort of like if I put the value :[faster faster computer] and set that to a value of one it will speed my box

any time there is a reg hack that improves performance and the default value is not set to optimum I am suspicous...why wouldn't ms set the value as best it could out of the box?

anyway, if it's a worthless value the os won't see it, so I don't see a harm in giving it a go

report back please
 
Last edited:

kcnychief

█▄█ ▀█▄ █
Political User
#4
regardless of how it works, would it be anything noticeable? I tried BootVis awhile back, but there have since been conflicting reports on the reliability of it's boot-time reporting.
 

Perris Calderon

Moderator
Staff member
Political User
#5
kcnychief said:
regardless of how it works, would it be anything noticeable? I tried BootVis awhile back, but there have since been conflicting reports on the reliability of it's boot-time reporting.
all bootvis does is the same thing xp's native optimization does every three days anyway
 

Steevo

Spammer representing.
Political User
#7
What if you don't reboot every three days?

I dunno, as I don't reboot very often. How about a way to increase WMP10 library load time. With a large library it takes a couple seconds to load.


But that would make sense and actually be beneficial.

And as a last rant, what does boot time actually prove anyway, that your PC needs to reboot often, but DAMN can it do it quick?
 

kcnychief

█▄█ ▀█▄ █
Political User
#8
Steevo said:
What if you don't reboot every three days?

I dunno, as I don't reboot very often. How about a way to increase WMP10 library load time. With a large library it takes a couple seconds to load.


But that would make sense and actually be beneficial.

And as a last rant, what does boot time actually prove anyway, that your PC needs to reboot often, but DAMN can it do it quick?
heh, yeah right? Dude, why WMP? Use winamp, much less resources!
 

Perris Calderon

Moderator
Staff member
Political User
#9
Steevo said:
What if you don't reboot every three days?

I dunno, as I don't reboot very often.
paste this into run it will start the task immediately;

Code:
Rundll32.exe advapi32.dll,ProcessIdleTasks
 
Last edited:

tdinc

█▄█ ▀█▄ █
Political User
#11
I tried it on my test rig, did not notice any improvements so far. boot time is the same, loading apps and so on... i change it back to the org prefetch setting...
 

kcnychief

█▄█ ▀█▄ █
Political User
#12
tdinc said:
I tried it on my test rig, did not notice any improvements so far. boot time is the same, loading apps and so on... i change it back to the org prefetch setting...
I really don't see this being a noticeable speed gain feature. If indeed Longhorn, now Vista, will be faster, it is more than likely due to the different file system WinFS.
 
#13
Prefetching is a feature of the kernel. This "tweak" won't do anything on an XP system since the kernel doesn't recognize it. It's as good as adding a random DWORD entry into the registry called "OverclockCPUTo25GHz" and expecting magic to happen. :)

Microsoft tweaks the NT kernel in each new OS. Prefetching was added to XP. It will be improved (i.e. Superfetch) in Vista. Simple as that.
 

kcnychief

█▄█ ▀█▄ █
Political User
#14
NetRyder said:
Prefetching is a feature of the kernel. This "tweak" won't do anything on an XP system since the kernel doesn't recognize it. It's as good as adding a random DWORD entry into the registry called "OverclockCPUTo25GHz" and expecting magic to happen. :)
Dude, not true. When I put in a DWORD for "RunMacOSXonMyPCsinceAppleisSwitchingtoIntelBasedCPU's" woah, my computer reached out of the monitor and *slapped* me

haha, thank god it's Friday :)
 
#16
NetRyder said:
Prefetching is a feature of the kernel. This "tweak" won't do anything on an XP system since the kernel doesn't recognize it. It's as good as adding a random DWORD entry into the registry called "OverclockCPUTo25GHz" and expecting magic to happen. :)

Microsoft tweaks the NT kernel in each new OS. Prefetching was added to XP. It will be improved (i.e. Superfetch) in Vista. Simple as that.
And just to clear up any doubts, you can try examining the strings within ntoskrnl.exe. Here's what you get:

PREFETCHER
/prefetch:
\BaseNamedObjects\PrefetchTracesReady
EnablePrefetcher
\BaseNamedObjects\PrefetchParametersChanged
\Registry\Machine\System\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters
EnablePrefetcher
MmPrefetchPages
RtlPrefetchMemoryNonTemporal
\Registry\Machine\System\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters
Prefetch
Notice how there's nothing related to Superfetch in there? :)
 

gonaads

Beware the G-Man
Political User
#17
She's a "Superfetch", "Superfetch". She's Superfetchy yeooow... "Superfetch"




NT Kernel sing...

Woooo wooo woo wo woooo...


"Superfetch!"



:rolleyes:

*runs away*

Weeeeeeeeeeeeeee!!!
 

tdinc

█▄█ ▀█▄ █
Political User
#18
gonaads said:
She's a "Superfetch", "Superfetch". She's Superfetchy yeooow... "Superfetch"
:laugh: just spit my slurpee all over my keyboard...:laugh:


sorry for being off-topic
 

kcnychief

█▄█ ▀█▄ █
Political User
#19
gonaads said:
She's a "Superfetch", "Superfetch". She's Superfetchy yeooow... "Superfetch"




NT Kernel sing...

Woooo wooo woo wo woooo...


"Superfetch!"



:rolleyes:

*runs away*

Weeeeeeeeeeeeeee!!!
Shame on you, you didn't use "EDIT:". I saw your original post and it was missing most of that :) Haha, caught you!

tdinc said:
:laugh: just spit my slurpee all over my keyboard...:laugh:


sorry for being off-topic
Hmmm, I'm sorry, but you leave me no choice. I'm going to connect to your machine, and create a new DWORD value called "DoNotLetUserDrinkatComputerBecauseSugarisbadforStickyKeys" and set the Hexidecimal value to FF

You have been warned :mad:
 

Steevo

Spammer representing.
Political User
#20
HA!!
DWORD

"ResetLetUserDrinkAtKeyboardIfDrinkIsCoffee"

HKLM\SoftwareMicrosoft\Windows\CurrentVersion\Runonce
 

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