Heiko Schocher <h...@denx.de> wrote on 2010/03/03 11:10:10:
>
> Hello Joakim,
>
> Joakim Tjernlund wrote:
> > Heiko Schocher <h...@denx.de> wrote on 2010/03/03 09:02:47:
> [...]
> >> Here the results:
> >> (The first 4 rows are the results for the kernel without your patches,
> >> the next 4 rows are the results for the kernel with your patches)
> >>
> >> make[1]: Entering directory `/home/hs/lmbench-3.0-a9/results'
> >
> > I see both ups and downs in this test, don't quite understand why.
> > What is your config w.r.t SWAP, MODULES, CPU6 and CPU15?
>
> Sorry, forgot to say, where to find the sources. You can find them
> here:
>
> http://git.denx.de/?p=linux-2.6-denx.git;a=shortlog;h=refs/heads/tqm8xx
OK, so you got SWAP=no, MODULES=yes, CPU6=no, CPU15=no
PIN_TLB isn't listed in you def config so I assume
it is no?
MODULES=yes nullifies one optimization.
I don't understand the bad numbers for Prot Fault:
File & VM system latencies in microseconds - smaller is better
-------------------------------------------------------------------------------
Host OS 0K File 10K File Mmap Prot Page 100fd
Create Delete Create Delete Latency Fault Fault selct
--------- ------------- ------ ------ ------ ------ ------- ----- ------- -----
tqm8xx Linux 2.6.33- 5917.2 3968.3 31.2K 4329.0 4147.0 18.8 34.1 135.2
tqm8xx Linux 2.6.33- 5714.3 3937.0 32.3K 6060.6 4210.0 14.2 34.5 131.4
tqm8xx Linux 2.6.33- 5747.1 4000.0 31.2K 4329.0 4114.0 7.692 34.0 133.1
tqm8xx Linux 2.6.33- 5747.1 4081.6 30.3K 4273.5 4100.0 18.2 34.2 135.0
tqm8xx Linux 2.6.33- 5714.3 3952.6 31.2K 4273.5 4130.0 33.5 35.1 136.1
tqm8xx Linux 2.6.33- 5714.3 3906.2 31.2K 6060.6 4105.0 25.7 35.5 135.9
tqm8xx Linux 2.6.33- 5681.8 3921.6 32.3K 4255.3 4144.0 23.5 35.0 134.9
tqm8xx Linux 2.6.33- 5649.7 3937.0 30.3K 4237.3 4116.0 21.6 35.3 135.3
Could you try reverting patch:
8xx: Don't touch ACCESSED when no SWAP.
and see if that makes a difference?
Turning on pinned TLBs(you must turn on ADVANCED_OPTIONS first) could be an
improvement,
regardless of my patches.
Jocke
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
