Messages in this thread |  | | | Subject | Re: [patch] lazy TSS's I/O bitmap copy ... | | From | Arjan van de Ven <> | | Date | Tue, 24 Aug 2004 08:51:12 +0200 | |
On Mon, 2004-08-23 at 23:23, Davide Libenzi wrote:
> The following patch implements a lazy I/O bitmap copy for the i386
> architecture. With I/O bitmaps now reaching considerable sizes, if the
> switched task does not perform any I/O operation, we can save the copy
> altogether. In my box X is working fine with the following patch, even if
> more test would be required.
the thing is that X will not hit your fault path, since it runs with
iopl() called... your patch is a nice optimisation for X as a result,
however as test, X is almost worthless ;(
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