Date: Wed, 5 Oct 2005 23:18:59 +0530 From: "Pranav Peshwe" <pranavpeshwe@gmail.com> To: <freebsd-questions@freebsd.org> Subject: FreeBSD and Intel Hyperthreading technology. Message-ID: <00a601c5c9d5$12c45180$fefefe0a@theone>
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Hello,
I have an Intel P4 2.8Ghz processor with Hyperthreading (HT).
The dmesg displays a message saying HT is present and 2 logical
CPUs present.I tried toggling the setting in BIOS but no difference.
How does the FBSD(v5.4 stable) kernel deal with HT ? Do the internal
workings( maybe locking, per processor data or other things) change as
compared to a simple non-HT processor ? or does it use employ SMP
methods to deal with the 2 logical CPUs presented by a HT processor ?
I want to do kernel programming on FBSD and my project partners have
non-HT CPUs.How much difference will HT make ? can it be avoided ?
TIA.
Regards,
Pranav Peshwe
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