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Date: Tue, 17 Sep 2002 13:35:53 -0700 (PDT)
From: "Randy.Dunlap" <rddunlap@osdl.org>
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To: Duc Vianney <dvianney@us.ibm.com>
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
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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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