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SubjectRe: Strange IDE performance change in 2.6.1-rc1 (again)
Date
On Friday 02 January 2004 22:27, you wrote:
>
> Do you get different numbers if you boot with:
>
> elevator=as
> elevator=deadline
> elevator=cfq (for -mm kernels)
> elevator=noop
>

Changing io scheduler doesn't seem to affect performance too much...

AS (the one already used)
> > 2.6.0:
> > 64 31.91
> > 128 31.89
> > 256 26.22 # during the transfer HD LED blinks
> > 8192 26.26 # during the transfer HD LED blinks
> >
> > 2.6.1-rc1:
> > 64 25.84 # during the transfer HD LED blinks
> > 128 25.85 # during the transfer HD LED blinks
> > 256 25.90 # during the transfer HD LED blinks
> > 8192 26.42 # during the transfer HD LED blinks

DEADLINE
2.6.0:
64 31.89
128 31.90
256 26.18
8192 26.22

2.6.1-rc1:
64 25.90
128 26.14
256 26.06
8192 26.45

NOOP
2.6.0:
64 31.90
128 31.76
256 26.05
8192 26.20

2.6.1-rc1:
64 25.91
128 26.23
256 26.16
8192 26.40


Bye

--
Paolo Ornati
Linux v2.4.23

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