diskio low read performance

Michel Santos michel at lucenet.com.br
Sat Jan 13 10:58:08 PST 2007


Kris Kennaway disse na ultima mensagem:
> On Sat, Jan 13, 2007 at 03:41:21PM -0200, Michel Santos wrote:
>>
>> Kris Kennaway disse na ultima mensagem:
>> > On Sat, Jan 13, 2007 at 09:53:47AM -0200, Michel Santos wrote:
>> >
>> >> I forgot to say that I tried it already. Even if it gave me no
>> >> improvement
>> >> I have it in 16 at this time together with a higher
>> >> vfs.ufs.dirhash_maxmem
>> >> value.
>> >>
>> >> Sincerley, any of the configuration changes I did gave me absolutely
>> >> nothing in relationship to the disk read access performance. That is
>> >> disappointing.
>> >>
>> >> Should I go back and try ufs1 perhaps? Or is it that squid does not
>> work
>> >> well on 6.2?
>> >
>> > Is it the same version of squid, same configuration, etc?
>> >
>> > Kris
>> >
>>
>> Yes, if you used to squid I am running the last 2.5-Stable14 version
>> which
>> run best on 4.11
>
> OK, please provide further details of your system configuration
> (dmesg, kernel config).
>


I have two server, the main server is a Supermicro Dualcore Dual Opteron
and the backup is a Athlon64 X2, both with 4GB

The disks are the same, only the onboard SCSI is Adaptec and the other is
LSI. Funny is that I have no difference regarding the disk read
performance wether I use the Opteron machine or the other

dmesg Opteron
http://suporte.lucenet.com.br/ms/dmesg.sm

dmesg X2
http://suporte.lucenet.com.br/ms/dmesg.x2

kernel config
http://suporte.lucenet.com.br/ms/kernel62


thank you
Michel




computador é como nem cavalo e mulher
mais que montam neles, pior que ficam ...




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