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SubjectRe: [PATCH] x86: Use clflush() instead of wbinvd() whenever possible when changing mapping
On Fri 2009-07-24 09:53:01, Thomas Hellstrom wrote:
> The current code uses wbinvd() when the area to flush is > 4MB. Although this
> may be faster than using clflush() the effect of wbinvd() on irq
> latencies

You are slowing the kernel down, and you did not write down the
reasons. bad.

--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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