Messages in this thread | | | Date | Tue, 29 Apr 2008 14:54:31 -0700 | From | "Yinghai Lu" <> | Subject | Re: [PATCH 1/2] x86: mtrr cleanup for converting continuous to discrete layout v8 |
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On Tue, Apr 29, 2008 at 1:46 PM, Randy Dunlap <randy.dunlap@oracle.com> wrote: > On Tue, 29 Apr 2008 03:52:33 -0700 Yinghai Lu wrote: > > > Index: linux-2.6/Documentation/kernel-parameters.txt > > =================================================================== > > --- linux-2.6.orig/Documentation/kernel-parameters.txt > > +++ linux-2.6/Documentation/kernel-parameters.txt > > @@ -595,6 +595,20 @@ and is between 256 and 4096 characters. > > See drivers/char/README.epca and > > Documentation/digiepca.txt. > > > > + disable_mtrr_cleanup [X86] > > + enable_mtrr_cleanup [X86] > > + The kernel tries to adjust MTRR layout from continuous > > + to discrete, to make X server driver able to add WB > > + entry later. This parameter enables/disables that. > > + > > + mtrr_chunk_size=nn[KMG] [X86] > > + used for mtrr cleanup. It is largest continous chunk > > + that could hold holes aka. UC entries. > > + > > + mtrr_gran_size=nn[KMG] [X86] > > + used for mtrr cleanup. It is granity of mtrr block. > > s/granity/granularity/ > I think that's what you mean/want.
thanks.
> > How does someone know that size/granity/whatever of an mtrr block?
considering to auto test to find optimal value for mtrr_chunk_size and mtrr_gran_size...
YH
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