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тАО04-06-2007 01:40 AM
тАО04-06-2007 01:40 AM
Hyperthreading support on Linux
Is there any command to know if hyperthreading is supported or not on a specific OS?
Also, if it is supported then how can I enble/disable it?
Thanks in advance
Also, if it is supported then how can I enble/disable it?
Thanks in advance
2 REPLIES 2
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тАО04-06-2007 02:14 AM
тАО04-06-2007 02:14 AM
Re: Hyperthreading support on Linux
Shalom,
The kernel supports hyperthreading on most modern distributions of Linux. The way to test it is with a simple test application.
You may see some evidence of the existance of support in the boot sequence for /var/log/messages.
SEP
The kernel supports hyperthreading on most modern distributions of Linux. The way to test it is with a simple test application.
You may see some evidence of the existance of support in the boot sequence for /var/log/messages.
SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО04-06-2007 06:55 AM
тАО04-06-2007 06:55 AM
Re: Hyperthreading support on Linux
See prior discussion in:
http://forums1.itrc.hp.com/service/forums/qu
estionanswer.do?threadId=246357
Summary:
#grep flags /proc/cpuinfo
If this gives " ht " as returned flag, then the CPU is ht CAPABLE, but it may have been disabled in bios.
grep -E "processor|physical id" /proc/cpuinfo
Study the numbers...
Hein.
http://forums1.itrc.hp.com/service/forums/qu
estionanswer.do?threadId=246357
Summary:
#grep flags /proc/cpuinfo
If this gives " ht " as returned flag, then the CPU is ht CAPABLE, but it may have been disabled in bios.
grep -E "processor|physical id" /proc/cpuinfo
Study the numbers...
Hein.
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