Heiko Schocher <h...@denx.de> wrote on 2010/03/08 10:06:39:
>
> Hello Joakim,
>
> Joakim Tjernlund wrote:
> > Heiko Schocher <h...@denx.de> wrote on 2010/03/08 08:46:29:
> >> Hello Joakim,
> >>
> >> Joakim Tjernlund wrote:
> >> [...]
> >>> What would be interesting is to skip patch 3 and turn off
> >>> MODULES add PIN_TLB and compare that against your unpatched .33 but
> >>> with MODULES off and PIN_TLB on
> >> run version
> >>
> >> 1-4 Linux2.6.33-rc without module support and PIN_TLB=on
> >> 5-8 Linux2.6.33-rc without module support and PIN_TLB=on + patches 1,2,4
> >>
> >> L M B E N C H 3 . 0 S U M M A R Y
> >> ------------------------------------
> >> (Alpha software, do not distribute)
> >
> > hmm, these results varies a lot. The only stable result I can see is:
> >
> >> Memory latencies in nanoseconds - smaller is better
> >> (WARNING - may not be correct, check graphs)
> >> ------------------------------------------------------------------------------
> >> Host OS Mhz L1 $ L2 $ Main mem Rand mem
> >> Guesses
> >> --------- ------------- --- ---- ---- -------- --------
> >> -------
> >> tqm8xx Linux 2.6.33- 66 31.7 183.2 184.0 1163.0 No
> >> L2 cache?
> >> tqm8xx Linux 2.6.33- 66 31.7 183.2 184.0 1164.8 No
> >> L2 cache?
> >> tqm8xx Linux 2.6.33- 66 31.7 183.2 184.0 1163.2 No
> >> L2 cache?
> >> tqm8xx Linux 2.6.33- 66 31.7 183.2 183.8 1163.7 No
> >> L2 cache?
> >> tqm8xx Linux 2.6.33- 66 31.8 172.4 173.2 1147.3 No
> >> L2 cache?
> >> tqm8xx Linux 2.6.33- 66 31.8 172.5 173.2 1148.3 No
> >> L2 cache?
> >> tqm8xx Linux 2.6.33- 66 31.8 172.5 173.1 1146.9 No
> >> L2 cache?
> >> tqm8xx Linux 2.6.33- 66 31.8 172.5 173.2 1147.3 No
> >> L2 cache?
> >
> > I don't see why the other results vary so much. Are you using NFS or having
> much network
> > traffic?
>
> I use NFS.
Then I think it is possible NFS gets in the way for stable measurements. Anyone
have experience with running lmbench on NFS?
Jocke
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