Messages in this thread | | | Date | Wed, 7 Aug 2002 19:07:39 +0200 (CEST) | From | Ingo Molnar <> | Subject | Re: [PATCH] [2.5 i386] Swap TLS and TSS entries to improve spatial locality |
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On 7 Aug 2002, Luca Barbieri wrote:
> GDT entries are usually accessed with this pattern: > * Interrupt: read TSS (for ss0:esp0) and kernel CS/DS > * Schedule: write TLS, LDT, load FS and GS (either TLS, user DS > or LDT entry) > * Return: read user CS/DS > > Swapping the TLS and TSS entries causes the GDT entries that are read > during interrupt and schedule to be in the same cacheline.
yes, this makes perfect sense.
Ingo
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