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SubjectRe: [Lse-tech] Hyperthreading performance on 2.4.19 and 2.5.32
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>HT enabled with 'noht' ??
>'noht' means "no HT", "no hyperthreading", disabled.

OOPS .. typing too fast .. 'noht' means not-enabled.
HT is the default option on 2.4.19.

Duc.


"Randy.Dunlap" <rddunlap@osdl.org> on 09/17/2002 03:35:53 PM

To: Duc Vianney/Austin/IBM@IBMUS
cc: <linux-kernel@vger.kernel.org>, <lse-tech@lists.sourceforge.net>
Subject: Re: [Lse-tech] Hyperthreading performance on 2.4.19 and 2.5.32



On Tue, 17 Sep 2002, Duc Vianney wrote:

| The following are data comparing the effects of hyperthreading (HT)on
| stock kernel 2.4.19 and 2.5.32.
| Hardware under test. The hardware is a Xeon 1-CPU MP, 1.6 gigahertz,
| and 2.5 GB RAM.
| Kernel under test. When testing under 2.4.19, the kernel was built
| as an SMP kernel, and was run on the hardware with HT enabled through
| the boot option 'noht'.

HT enabled with 'noht' ??
'noht' means "no HT", "no hyperthreading", disabled.

| When testing under 2.5.32, the kernel was
| built as an SMP kernel, and was run on the hardware with HT enabled
| through selecting ACPI in configuration.

--
~Randy





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