Re: more exciting latencytest results ( NOT SO EXCITING :-( )

Benno Senoner (sbenno@gardena.net)
Mon, 26 Jul 1999 01:51:14 +0200

On Sun, 25 Jul 1999, est@hyperreal.org wrote:
> It became clear that my previous tests were done with DMA off. *Why*
> that was so is the subject of another post. However, once I got it
> on, I got the following results usings mingo's patch and the
> (unmodified) Arcangeli patch:
>
> 1.7ms ( 0)|
> 6.0ms ( 1)|
> 29.0ms ( 19)|
> 10.1ms ( 15)|
> 5.2ms ( 0)|
>
> Very nice. :)

nice for me means all values <5ms
:-)

Unfortunately I seem to have no luck, I applied a patch from Roger (an enhanced
version of Anrea's patch) + Mingo's patch on a 2.2.10 kernel , but on my
PII400 + IBM 16GB EIDE disk I still get SUBOPTIMAL values: :-(

gfx: 2.9ms (0)
proc: 9.1 (101)
disk write 49ms (9)
disk copy 31ms (27)
disk read: 13ms (7)

substantially the patched did not improve much my results,
maybe the next patch from Mingo will make things better,
since he wrote me he is fighting with latencies between 2-4ms :-)

ciao,
Benno.

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