Re: [PATCH] x86: Use clflush() instead of wbinvd() wheneverpossible when changing mapping

[Pavel Machek]

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.

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