Re: Poor performance

On Sun, Dec 14, 2003 at 01:55:40AM +0100, Dag-Erling Sm?rgrav wrote:
> Slawa Olhovchenkov <slw_at_zxy.spb.ru> writes:
> > I have upgrade web server from 4.7 to current (cvsup date 2003.12.08.06.40.00)
> > and have degradation performance.
> 
> des_at_dwp /usr/src% head -18 UPDATING
> Updating Information for FreeBSD current users
> 
> This file is maintained and copyrighted by M. Warner Losh
> <imp_at_village.org>.  See end of file for further details.  For commonly
> done items, please see the COMMON ITEMS: section later in the file.
> 
> NOTE TO PEOPLE WHO THINK THAT FreeBSD 5.x IS SLOW:
>         FreeBSD 5.x has many debugging features turned on, in
>         both the kernel and userland.  These features attempt to detect
>         incorrect use of system primitives, and encourage loud failure
>         through extra sanity checking and fail stop semantics.  They
>         also substantially impact system performance.  If you want to
>         do performance measurement, benchmarking, and optimization,
>         you'll want to turn them off.  This includes various WITNESS-
>         related kernel options, INVARIANTS, malloc debugging flags
>         in userland, and various verbose features in the kernel.  Many
>         developers choose to disable these features on build machines
>         to maximize performance.

No, this is not related there.

I am cvsuped to 2003.12.13.18.13.00 and performance back to normal.

Sorry.

-- 
Slawa Olhovchenkov