Re: Effects of CPUTYPE

2008-06-12 Thread Torben Jakobsen
 [image removed] 
 
 Re: Effects of CPUTYPE
 
 Wojciech Puchar 
 
 to:
 
 freebsd-questions, parish
 
 2008-06-11 20:31
 
 Sent by:
 
 [EMAIL PROTECTED]
 
   In my personal opinion, the small gain you get is more than
   overwhelmed by the big pain you get from setting CPUTYPE.
 
  I'm setting CPUTYPE on all of my machines for many years,
  without the slightest problems.  No pain at all.  They're
  all kinds of different processors, c3-2 (VIA), athlon64,
  and so on.  In some cases the difference is very noticable.
 
 exactly like me. i set it everywhere, no problems.
 
 ___
 freebsd-questions@freebsd.org mailing list
 http://lists.freebsd.org/mailman/listinfo/freebsd-questions
 To unsubscribe, send any mail to 
[EMAIL PROTECTED]

I had the opposite problem: I could not build the world/kernel until I set 
CPUTYPE to c3-2 (or c3). It was a brand new VIA EDEN-EX 1.5GHz with no 
other things installed but a copy of the 7.0-RELEASE-p1 source. (I did not 
have compile problems when I installed the 6.2 on a similar machine)

I set CPUTYPE in /etc/make.conf. I think it is only used by the gcc 
compiler so it will probably only make a difference if you compile ports 
or from source.

Compiling the kernel/world with CPUTYPE=c3-2 I think I see an improved 
boot time. I do not know of other gains as the server idles most of the 
time so I do not really care as long as it is stable. I never did try to 
time the kernel and world builds.

:-)
Torben


Medmindre andet er angivet ovenfor: / Unless Otherwise Stated Above:
IBM Danmark A/S
Nymøllevej 91
2800 Kongens Lyngby, Danmark
CVR nr.: 65305216 
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to [EMAIL PROTECTED]


Re: Effects of CPUTYPE

2008-06-11 Thread Oliver Fromme
Jonathan Chen wrote:
  Mark Ovens wrote:
   Trying to identify why I should be having all these problems I've been 
   looking for anything that may be specific to my machine. One thing I've 
   come up with is the fact that I have CPUTYPE?=athlon-mp in 
   /etc/make.conf on both 6.3 and 7.0.
  
  In my personal opinion, the small gain you get is more than
  overwhelmed by the big pain you get from setting CPUTYPE.

I'm setting CPUTYPE on all of my machines for many years,
without the slightest problems.  No pain at all.  They're
all kinds of different processors, c3-2 (VIA), athlon64,
and so on.  In some cases the difference is very noticable.

Having said that, it's certainly worth trying whether your
problems are gone when you compile without that setting.

Do you have any other unusual settings, such as non-standard
CFLAGS or anything?

BTW, I once was bitten by a similar problem, when building
software failed in strange ways, it turned out I had a bad
variable in my environment that was picked up by some build
scripts.  Maybe it's worth a try to run your ports builds
with a clean environment (env -), or try to install
binary packages instead of building ports yourself, in
order to narrow down where the problem is.

Best regards
   Oliver

-- 
Oliver Fromme, secnetix GmbH  Co. KG, Marktplatz 29, 85567 Grafing b. M.
Handelsregister: Registergericht Muenchen, HRA 74606,  Geschäftsfuehrung:
secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün-
chen, HRB 125758,  Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart

FreeBSD-Dienstleistungen, -Produkte und mehr:  http://www.secnetix.de/bsd

Python tricks is a tough one, cuz the language is so clean. E.g.,
C makes an art of confusing pointers with arrays and strings, which
leads to lotsa neat pointer tricks; APL mistakes everything for an
array, leading to neat one-liners; and Perl confuses everything
period, making each line a joyous adventure wink.
-- Tim Peters
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to [EMAIL PROTECTED]


Re: Effects of CPUTYPE

2008-06-11 Thread Wojciech Puchar

 In my personal opinion, the small gain you get is more than
 overwhelmed by the big pain you get from setting CPUTYPE.

I'm setting CPUTYPE on all of my machines for many years,
without the slightest problems.  No pain at all.  They're
all kinds of different processors, c3-2 (VIA), athlon64,
and so on.  In some cases the difference is very noticable.


exactly like me. i set it everywhere, no problems.

___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to [EMAIL PROTECTED]


Re: Effects of CPUTYPE

2008-06-05 Thread Mark Ovens
On Thu, June 5, 2008 00:24, Jonathan Chen wrote:
 In my personal opinion, the small gain you get is more than
 overwhelmed by the big pain you get from setting CPUTYPE.

Thanks Jonathan. I think I'll reinstall my 7.0 system from scratch and
install the apps from packages rather than build from ports and see if
that solves the problems.

The thing is that the main serious use for this box is managing my
digital photos - over 12GB of them - and it is getting increasingly
difficult with the apps I choose to use becoming unreliable.

I've really got to the point where I'm considering switching to Linux as
I've tried Mandriva and all the apps I use that I'm having problems with
on FreeBSD work just fine under Linux.

I don't want to switch - I've been using FreeBSD for ~13 years (since
2.0.5) but since I ditched Windows nearly 2 years ago I need reliability.

Regards,

Mark


___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to [EMAIL PROTECTED]


Effects of CPUTYPE

2008-06-04 Thread Mark Ovens
For months now I've been having ever increasing problems with software 
(ports) stopping working - or not working properly; xorg, digikam, 
jalbum, etc.


The problems are the same on 6.3-STABLE and a brand new, clean install 
of 7.0. Searching mailing lists and Google makes me think that a lot of 
these problems are specific to my system.


Trying to identify why I should be having all these problems I've been 
looking for anything that may be specific to my machine. One thing I've 
come up with is the fact that I have CPUTYPE?=athlon-mp in 
/etc/make.conf on both 6.3 and 7.0.


I understand that this optimizes compilation for that CPU but can this 
potentially cause problems? Is this a possible cause of strange 
problems? All my ports are built from source rather than from packages 
so are built with this option.


Regards,

Mark
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to [EMAIL PROTECTED]


Re: Effects of CPUTYPE

2008-06-04 Thread Jonathan Chen
On Wed, Jun 04, 2008 at 11:14:14PM +0100, Mark Ovens wrote:

 Trying to identify why I should be having all these problems I've been 
 looking for anything that may be specific to my machine. One thing I've 
 come up with is the fact that I have CPUTYPE?=athlon-mp in 
 /etc/make.conf on both 6.3 and 7.0.

In my personal opinion, the small gain you get is more than
overwhelmed by the big pain you get from setting CPUTYPE.
-- 
Jonathan Chen [EMAIL PROTECTED]
--
  Opportunity does not knock,
   it presents itself when you beat down the door - W.E. Channing
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to [EMAIL PROTECTED]


Re: Effects of CPUTYPE

2008-06-04 Thread RW
On Wed, 04 Jun 2008 23:14:14 +0100
Mark Ovens [EMAIL PROTECTED] wrote:

 For months now I've been having ever increasing problems with
 software (ports) stopping working - or not working properly; xorg,
 digikam, jalbum, etc.
 
 ...
 I understand that this optimizes compilation for that CPU but can
 this potentially cause problems? Is this a possible cause of strange 
 problems? All my ports are built from source rather than from
 packages so are built with this option.

I think it's unlikely, but it's easy enough to eliminate.  

From the ports you mention, xorg does seem to be holding a smoking gun.
If you have any unnecessary features enabled in xorg.conf, I'd turn
them off.
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to [EMAIL PROTECTED]