New MS install is slow to an extreme

DAve dave.list at pixelhammer.com
Mon Apr 7 13:47:19 IST 2008


Martyn Routley wrote:
> Julian Field wrote:
>>
>>
>> Martyn Routley wrote:
>> > DAve wrote:
>> >> Martyn Routley wrote:
>> >>> DAve wrote:
>> >>>> DAve wrote:
>> >>>>
>> >>>> I moved the incoming dir to a tmpfs mount (mdmfs on freebsd) no
>> >>>> change in processing time.
>> >>>>
>> >>>> I am getting really stumped now.
>> >>>>
>> >>>> DAve
>> >>>>
>> >>>>
>> >>>>
>> >>> What is your hardware?
>> >>> We had random processing times when running 6.2 on one of our
>> >>> servers. (Single  P4 dual core)
>> >>> I upgraded in place to 7.0 (using FreeBsd Update
>> >>> (http://www.freebsd.org/releases/7.0R/announce.html) and now the
>> >>> emails don't touch the sides.
>> >>> Getting Sophos to work was a bind though.
>> >>>
>> >> Interesting, do you know the upgrade helped? I am always leery of
>> >> "upgrade" as a solution unless I know why the upgrade is the solution.
>> >>
>> >> Server 1
>> >> Intel(R) Xeon(TM) CPU 2.40GHz Quad Core
>> >> 2GB ram
>> >> Quatum Atlas SCSI drives, one for the system and one for the spool dir
>> >>
>> >> Server 2
>> >> Intel(R) Xeon(TM) CPU 2.40GHz Quad Core
>> >> 2GB ram
>> >> Maxtor SATA drives, one for the system and one for the spool dir
>> >>
>> >> DAve
>> >>
>> > Good question.
>> > All that changed was the os version and the fact that I rebuilt all
>> > installed ports.
>> So, in short, you changed "everything" :-)
>> > The server went from a 5 minute av of 7+ to 3.5 or less and from
>> > having 30 + messages waiting to be processed to having MailScanner
>> > waiting for messages most of the time.
>> > MS config/version didn't change
>> > I don't discount the possibility that rebuilding all of the installed
>> > ports helped.
>>
>> Sounds like it's sorted out then, and not really MailScanner's fault
>> after all :-) :-)
>>
>> Jules
>>
> Did I imply that? If it seemed like I did, I humbly apologise.
> What I omitted from the earlier message was that there have been reports 
> of "Dramatic" improvements in multi processor operation over previous 
> versions (see the FreeBsd announcement referred to above.)

I didn't get that impression. My big issue was a normal run through of 
the change log didn't prepare me for how much of a difference the new MS 
made. I knew from the start, and I hope everyone got that, my issues 
were my own failure to tune/config/adjust something. Which in the end 
proved to be true. Once pointed in the right direction we smoothed out.

DAve

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