From: Heiko Schocher <hs@denx.de>
To: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Cc: Scott Wood <scottwood@freescale.com>,
linuxppc-dev@ozlabs.org, Wolfgang Denk <wd@denx.de>
Subject: Re: [PATCH 0/4] 8xx: Optimize TLB Miss code.
Date: Mon, 08 Mar 2010 10:06:39 +0100 [thread overview]
Message-ID: <4B94BE1F.8030203@denx.de> (raw)
In-Reply-To: <OF7533FA9E.2786BF7B-ONC12576E0.002FB5D8-C12576E0.002FFEE9@transmode.se>
Hello Joakim,
Joakim Tjernlund wrote:
> Heiko Schocher <hs@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.
bye
Heiko
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
next prev parent reply other threads:[~2010-03-08 9:06 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-03 8:02 [PATCH 0/4] 8xx: Optimize TLB Miss code Heiko Schocher
2010-03-03 8:48 ` Joakim Tjernlund
2010-03-03 8:59 ` Joakim Tjernlund
2010-03-03 10:10 ` Heiko Schocher
2010-03-03 10:38 ` Joakim Tjernlund
2010-03-04 10:30 ` Heiko Schocher
2010-03-04 12:16 ` Wolfgang Denk
2010-03-04 13:06 ` Joakim Tjernlund
2010-03-04 16:30 ` Heiko Schocher
2010-03-05 10:40 ` Joakim Tjernlund
2010-03-08 7:46 ` Heiko Schocher
2010-03-08 8:44 ` Joakim Tjernlund
2010-03-08 9:06 ` Heiko Schocher [this message]
2010-03-08 10:42 ` Joakim Tjernlund
2010-03-09 6:30 ` Wolfgang Denk
2010-03-07 16:03 ` Joakim Tjernlund
-- strict thread matches above, loose matches on Subject: below --
2010-03-02 15:37 Joakim Tjernlund
2010-02-26 8:29 Joakim Tjernlund
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