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more insight into BIOS MTRRs (Users)

posted by RayeR(R) Homepage, CZ, 23.03.2011, 20:18

> Looking from Windows now, neither Win 98 nor 2k set an MTRR over the frame
> buffer. I guess for such purpose they are using the PAT instead.

I don't know anything about PAT yet, have some good docs?
Maybe it's way to solve core i3/5/7 issue. BTW I got some test results from intel onboard vga 845-945G and it's interesting that BS mode gain performance ~10x but LFB mode only 10-20% when MRTT set.

DOS gives me freedom to unlimited HW access.


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