Re: 2.4, 2.6, i686/athlon and LDT's
From: Arjan van de Ven (arjan_at_infradead.org)
Date: 12/27/04
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To: Tymm Twillman <ttwillman@penguincomputing.com> Date: Mon, 27 Dec 2004 21:22:16 +0100
On Mon, 2004-12-27 at 11:46 -0800, Tymm Twillman wrote:
> Hi all,
>
> It appears that use of the LDT is to speed up context switching between
> threads, although I haven't even found especially good references WRT
> that. I have looked through the info in the IA Developers publications
> and have whacked my head against Google quite a bit. However, every bit
> of clarity I've found there has been offset by new confuzled bits.
LDT's are *slow*. That's why glibc will try to avoid using them
nowadays, and with 2.6 it won't; as for 2.4.. it depends if you use a
vendor 2.4 it might be able to avoid using LDT's as well.
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- Previous message: Diego: "Re: About NFS4 in kernel 2.6.9"
- In reply to: Tymm Twillman: "2.4, 2.6, i686/athlon and LDT's"
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- Reply: Brian Gerst: "Re: 2.4, 2.6, i686/athlon and LDT's"
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