How do I get back the single processor kernel?

[Zoinks]

After a BIOS upgrade, hyperthreading got turned on. I turned it back off, but I still have the multiprocessor kernel in XP. How can I get back the single processor kernel?

 

[Crusty]

A better question is why did you turn Hyperthreading off?

 

[Zoinks]

It slows things down significantly. Switching it off made a big difference. Besides, single CPU is better for games.

 

[drag]

hyperthreading does slow stuff down. You can see it in benchmarks if you want to look. It slows some stuff, speeds up other stuff...

But as far as getting a old kernel back in WinXP, I have no idea.

I probably wouldn't worry about it to much, the SMP stuff probably isn't going to cause much performance drop, and I realy doubt that it would be enough to be noticable.

Maybe do a quick search of MS's KB articles?

 

[nihl8tor88]

Do you mean the Hal?
xp is not a kernel swapping o/s.
you can't just download and install a new kernel ,ya know.
Is what you are looking for. ....
device manager, computer, expand and choose new driver, pick the multprocessor from the list and install?
or just use system restore dude.
btw if this works, you can refer to me as "Chocolate Thunda!!"

 

[Zoinks]

device manager, computer, expand and choose new driver, pick the multprocessor from the list and install

Exactly!
Thanks.

 

[bsobel]

Originally posted by: Zoinks
It slows things down significantly. Switching it off made a big difference. Besides, single CPU is better for games.

What OS are you running?
Bill

 

[Derango]

Originally posted by: bsobel

Originally posted by: Zoinks
It slows things down significantly. Switching it off made a big difference. Besides, single CPU is better for games.

What OS are you running?
Bill

Read the first post carefully

 

[bsobel]

Read the first post carefully

DOH. Somehow missed that....

In that case, while it's your decision (obviously) I think (and the data shows) your wrong to turn off HT on XP. You performance will be better with it on. What data are you looking at that shows you otherwise?

Bill

 

[THUGSROOK]

i dont run HT either.
HT is for multitasking, not for gaming.
gaming is faster with HT off.

 

[bsobel]

Originally posted by: THUGSROOK
i dont run HT either.
HT is for multitasking, not for gaming.
gaming is faster with HT off.

Sorry, but you are *ALWAYS* multitasking. Please provide links where you show games are slower with HT.

Bill

 

[dawks]

Originally posted by: bsobel

Originally posted by: THUGSROOK
i dont run HT either.
HT is for multitasking, not for gaming.
gaming is faster with HT off.

Sorry, but you are *ALWAYS* multitasking. Please provide links where you show games are slower with HT.

Bill

Im sure some games could benefit from hyperthreading if developers actually coded their games to take advantage of it. But the market just isnt there yet.

The only game that really ever had SMP support was the 'Quake 3 engine', but it was broken in some update and never fixed. (I think i heard of some other game that had it, but it didnt work or was pretty crappy implementation..)

 

[bsobel]

Im sure some games could benefit from hyperthreading if developers actually coded their games to take advantage of it. But the market just isnt there yet.
The only game that really ever had SMP support was the 'Quake 3 engine', but it was broken in some update and never fixed. (I think i heard of some other game that had it, but it didnt work or was pretty crappy implementation..)

Doesnt' matter, in a current OS there is always lots of other things going on. The kernel will wind up having schedulable threads for IO and other operations even if your running a 'single' application.

I'm still waiting for one of the posters (TR...) to post benchmarks showing the HT slows down games...

Bill