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Date:      Wed, 23 Nov 2005 11:23:26 +0000
From:      Dmytro Surovtsev <sd@buc.com.ua>
To:        freebsd-questions@freebsd.org
Subject:   Re: FreeBSD 6.0 GENERIC Kernel perfomance
Message-ID:  <4384512E.5060605@buc.com.ua>

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I was not really honest: I did compiled the kernel without -g option. 
Nothing different. The only thing that looks like help was compile 
without PREEMPTIVE option. I'm sorry very much for FreeBSD that I like 
many years. I do not think that racing for issuing the new RELEASE (so 
called in this case) in proper time costs the reliability and robustness 
   we all appreciated all theese years.

SD



Kris Kennaway wrote:


 >>On Tue, Nov 22, 2005 at 05:32:12PM +0000, Dmytro Surovtsev wrote:
 >>
 >>
 >
 >>>>Hello,
 >>>>
 >>>>Maybe it's my own opinion but I've discovered that 6.0 kernel is much
 >>>>slower than 5.4, I mean GENERIC in both cases.
 >>>>
 >>>>
 >
 >>
 >>It's only your own opinion until you share with us the measurements
 >>that led you to conclude this.  FreeBSD 6.0 is much faster than
 >>FreeBSD 5.4 in my measurements, especially in the area of filesystem
 >>performance.
 >>
 >>
 >>
 >
 >>>>And, as well, 6.0 works
 >>>>right with the set of ports come with it in distribution inly. Nearly
 >>>>any new port can not assemble with differnent errors, mostly like: 
"The
 >>>>version of library XXX is installed, it's conflict with XXX-1, 
please do
 >>>>pkg_delete, and pkg_add then". But after than nearly nothing works.
 >>>>
 >>>>
 >
 >>
 >>This is not a FreeBSD 6.0 problem, it indicates that you aren't
 >>upgrading your ports properly.
 >>
 >>Look into the portupgrade tool, and if you have specific problems with
 >>using it, then post specific questions.
 >>
 >>Kris
 >>
 >>

Dmytro,

The stock Generic Kernel for 6.0-Release has debugging features which
according to the kernel developement team where left in during release.

Try to recompile the Generic Kernel with the option debug -g commented
out and see if that helps with the speed issues you have encountered.

Thanks,

Russell





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