FreeBSD 4.x Opteron Question

[Nick Pavlica]

em1897,
  I'm curious how you are testing.  In my testing,  the 5.4 pre IP
stack performed very well.  I was able to get 100% more throughput
than Linux (2.6.10 FC3) under heavy load on the exact same hardware. 
I was actually surprised at the difference because I have been a Linux
Zellot for years.  I didn't see any packet loss in my tests, but I do
have good quality networking gear and servers.  I was happy enough
after my testing that I'm going to move my 4.x servers to 5.4 when
it's released.  I haven't tested dragonfly yet, but get all the
performance I need out of FreeBSD.

--Nick


On Fri, 18 Mar 2005 18:55:14 -0500, em1897 at aol.com <em1897 at aol.com> wrote:
> 
> 
> :Boris,
> :  I would agree that my initial impression of 5.3 was that it was slow
> :compared to 4.x.  After some tuning, I now have 5.3 running at an
> :acceptable performance level.  You may want to start testing the newer
> :versions of 5 current.  I have noticed improved performance on my test
> :servers and believe that 5.4 will demonstrate an improvement in
> :performance.  I know that the guys on the performance list would like
> :to get some good feedback if you find any specific bottlenecks with it
> :as well.
> :
> :--Nick
> 
> FYI, I recently testing bridging/network performance on 5.4-pre and its
> about the same as 5.3: 25 to 30% more CPU load for the same traffic
> levels than 4.x. SMP drops packets at about 60% load and seems to
> have a lower capacity than UP. I'm sure some things are faster, but
> networking is a large component for most people I think.
> Threaded network stacks just don't seem to perform well,
> certainly not on UP. Linux MP works much better, but
> with 2 CPUs it has the capacity of FreeBSD 4.x with 1.
> So its hard to justify.
> 
> FWIW, its quite a bit better with UP than DragonFLY, but
> dragonfly is much better with 2 processors.
> 
> On Wed, 16 Mar 2005 14:51:43 -0800 (PST), Boris Spirialitious
> <hardcodeharry at yahoo.com> wrote:
> >
> > --- cyb <cyb. at gmx.net> wrote:
> > > http://www.freebsd.org/platforms/amd64.html
> > >
> > > Looks like you will need to use 5.3-release (or
> > > 5.3-stable/5.4-prerelease if you have more than
> > > 4GB).
> > >
> > > Why can you not use 5.3?
> >
> > 5.3 is too slow, and we have custom code. Why use
> > faster hardware just to use slower version of O/S?
> > Please don't start with flames. This is what I
> > feel.
> >
> > I don't need so much RAM, so 4.x will work with
> > 1 or 2GB of RAM?
> >
> > Boris
> >
> > >
> > >
> > > On Wed, 2005-03-16 at 09:43 -0800, Boris
> > > Spirialitious wrote:
> > > > --- Boris Spirialitious <hardcodeharry at yahoo.com>
> > > > wrote:
> > > > > When opteron support start for Freebsd? I have
> > > 4.9.
> > > > > is supported? Or 4.11 better? I can't use 5.x.
> > > > >
> > > > > Will a i386 disk boot on opteron system? Can I
> > > > > use same disk image for intel and amd MBs? Any
> > > > > big problems?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Boris
> > > >
> > > > Does anyone know answer please? Someone must use
> > > > Opteron here
> > > >
> > > > Boris
> > >
> > > --
> > > GnuPG key  : 0xD25FCC81  |
> > > http://cyb.websimplex.de/pubkey.asc
> > > Fingerprint: D182 6F22 7EEC DD4C 0F6E  564C 691B
> > > 0372 D25F CC81
> > >
> > >
> > >
> > >
> >
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! Small Business - Try our new resources site!
> > http://smallbusiness.yahoo.com/resources/
> > _______________________________________________
> > freebsd-questions at freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> > To unsubscribe, send any mail to
> "freebsd-questions-unsubscribe at freebsd.org"
> >
> 
>