Messages in this thread | | | Date | Sat, 27 Sep 2008 22:58:16 -0700 | From | "Yinghai Lu" <> | Subject | Re: [PATCH] x86: mtrr_cleanup hole size should be less than half of chunk_size v2 |
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On Sat, Sep 27, 2008 at 8:26 PM, Yinghai Lu <yhlu.kernel@gmail.com> wrote: > v2: should check with half of range0 size instead of chunk_size > > So don't have silly big hole. > > in hpa's case we could auto detect instead of adding mtrr_chunk_size in command line > > Ingo, please consider to squash this one to previous one > | commit 2313c2793d290a8cc37c428f8622c53f3fe1d6dc > | Author: Yinghai Lu <yhlu.kernel@gmail.com> > | Date: Sat Sep 27 00:30:08 2008 -0700 > | > | x86: mtrr_cleanup optimization, v2 > > Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> >
Dylan,
please try tip/master after Ingo put this patch into it...
from reg00: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1 reg01: base=0x100000000 (4096MB), size= 512MB: write-back, count=1 reg02: base=0x120000000 (4608MB), size= 256MB: write-back, count=1 reg03: base=0xd0000000 (3328MB), size= 256MB: uncachable, count=1 reg04: base=0xe0000000 (3584MB), size= 512MB: uncachable, count=1 reg05: base=0xc7e00000 (3198MB), size= 2MB: uncachable, count=1 reg06: base=0xc8000000 (3200MB), size= 128MB: uncachable, count=1
you should get Found optimal setting for mtrr clean up gran_size: 1M chunk_size: 256M num_reg: 7 lose RAM: 0M range0: 0000000000000000 - 00000000d0000000 Setting variable MTRR 0, base: 0MB, range: 2048MB, type WB Setting variable MTRR 1, base: 2048MB, range: 1024MB, type WB Setting variable MTRR 2, base: 3072MB, range: 256MB, type WB hole: 00000000c7e00000 - 00000000d0000000 Setting variable MTRR 3, base: 3198MB, range: 2MB, type UC Setting variable MTRR 4, base: 3200MB, range: 128MB, type UC rangeX: 0000000100000000 - 0000000130000000 Setting variable MTRR 5, base: 4096MB, range: 512MB, type WB Setting variable MTRR 6, base: 4608MB, range: 256MB, type WB
with mtrr_spare_reg_nr=2 you should get Found optimal setting for mtrr clean up gran_size: 1M chunk_size: 4M num_reg: 6 lose RAM: 0M range0: 0000000000000000 - 00000000c8000000 Setting variable MTRR 0, base: 0MB, range: 2048MB, type WB Setting variable MTRR 1, base: 2048MB, range: 1024MB, type WB Setting variable MTRR 2, base: 3072MB, range: 128MB, type WB hole: 00000000c7e00000 - 00000000c8000000 Setting variable MTRR 3, base: 3198MB, range: 2MB, type UC rangeX: 0000000100000000 - 0000000130000000 Setting variable MTRR 4, base: 4096MB, range: 512MB, type WB Setting variable MTRR 5, base: 4608MB, range: 256MB, type WB
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