FreeBSD 6.0 GENERIC Kernel perfomance

Russell Meek russell at
Wed Nov 23 21:23:43 GMT 2005

Dmytro Surovtsev wrote:

> Kris,
> thanks for reply. I did not provide any special tests for performance, 
> I catch it just working on my workstation - P-4, 3 GHz, 512 MB.
> Long time ago (several monthes) I've used Gentoo Linux, but siwtched 
> to FreeBSD because of better performance especially when I work in X.
> About the port set: what do you mean under "> upgrading your ports 
> properly"? I've downloaded the ports.tar.gz (about 30M) and untarred 
> it to /usr/ports. what else?
> Dmytro
> 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
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Sorry the debug -g option did not help.

I have only noticed increased speed with 6 vs 5.4, but then again I am 
not using X, I use FreeBSD only for servers.

I noticed a slight lag at first and was not using the SCHED_ULE 
scheduler, but the 4BSD.

Removing debug -g and recompiling my kernel pretty much solved that.



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