Hyperthreading ON vs. OFF

  • Thread starter Thread starter Patrick Cleburne
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Patrick Cleburne

The hyperthreading setting is OFF by default on my new computer. I
understand that if I turn it on, certain programs that have been designed to
take advantage of that technology will run faster...so I'll probably do
that.

But are there any downsides or performance hits to turning it on?

Cleburne
 
Patrick Cleburne said:
The hyperthreading setting is OFF by default on my new computer. I
understand that if I turn it on, certain programs that have been designed
to
take advantage of that technology will run faster...so I'll probably do
that.

But are there any downsides or performance hits to turning it on?
Click to expand...

I would definitely turn it on, as I too have heard of no disadvantages to
doing so. Keep in mind that HT is tied into ACPI power management in some
way, so you may need to enable it in the bios if HT doesn't work at the
outset.

To check if it is enabled, right-click on the taskbar and launch Task
Manager, then Performance. If you see two windows under CPU Usage History,
HT is enabled. If enabled you will also see "ACPI Multiprocessor PC" under
Computer, and two P4's will show under Processors.
 
Bob Davis said:
I would definitely turn it on, as I too have heard of no disadvantages to
doing so. Keep in mind that HT is tied into ACPI power management in some
way, so you may need to enable it in the bios if HT doesn't work at the
outset.

To check if it is enabled, right-click on the taskbar and launch Task
Manager, then Performance. If you see two windows under CPU Usage
History, HT is enabled. If enabled you will also see "ACPI Multiprocessor
PC" under Computer, and two P4's will show under Processors.
Click to expand...

Thanks to all for the help.

Cleburne
 
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