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01-13-2008 08:28 AM
01-13-2008 08:28 AM
OS: SLES 9 running on a DL585
the OS is correctly showing it has 8 cpus.
but
hpasmcli -s "show ht"
Processor hyper-threading is currently disabled.
the question is will i gain anything by enabling HT?
thanks
the OS is correctly showing it has 8 cpus.
but
hpasmcli -s "show ht"
Processor hyper-threading is currently disabled.
the question is will i gain anything by enabling HT?
thanks
Solved! Go to Solution.
2 REPLIES 2
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01-13-2008 05:00 PM
01-13-2008 05:00 PM
Solution
You're using AMD Opteron processors, in a 585 chassis. The chassis can only have 4 physical processors, so the dual-core enabled processors are already showing as fully enabled.
'Hyper-threading' is an Intel mechanism introduced in the P4 era (later included in the Xeon series) as a prelude to 'multi-core' processors. Now it's just a dual-core/quad-core processor, instead of 'Hyper-trheading'.
Yes, there are differences between multi-core and hyper-threading, but the Linux OS treats them (at the user level at least) as separate processors.
'Hyper-threading' is an Intel mechanism introduced in the P4 era (later included in the Xeon series) as a prelude to 'multi-core' processors. Now it's just a dual-core/quad-core processor, instead of 'Hyper-trheading'.
Yes, there are differences between multi-core and hyper-threading, but the Linux OS treats them (at the user level at least) as separate processors.
One long-haired git at your service...
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01-14-2008 07:55 AM
01-14-2008 07:55 AM
Re: Hyper-threading
thanks
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