Hyperthreading off?

S

SemiDevil

New Member
Hello guys..

hyperthreading is when the computer thinks that it has two processors right?

I have two questions about that.

1) Can you turn HT off and how?

2) Why would anyone wants to turn it off?


Thank you
 
1. In your BIOS under one of the menus there will be an option to disable hyperthreading.
2. HyperThreading decreases single threaded application performance.
 
1. In your BIOS under one of the menus there will be an option to disable hyperthreading.
2. HyperThreading decreases single threaded application performance.
Click to expand...

Oh ok..thank you.

But shouldn't hyperthreading be better? Or does it lower the effiency of using a single threaded apllication?
 
Hypertrheading is marginally better for multithreadded applications but in single threaded performance it is worse. This is because of the way hyperthreading works. Each thread gets a turn at the execution engine so even when one logical core is effectivly idle, there is always a second thread running for system processes that takes away performance.
 
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