AW: [Samba] Samba just Slow with AutoCad?

Arno Seidel aseidel at aseidel.com
Wed Jun 9 15:59:48 GMT 2004 

Hi,

we had a similar problem with a reiserfs partition an
SGI´s FailSafe , it took to long to save a internal database of failsafe
because of this the ha services moved from one node to the other and back
again ....(until we stoped
failsafe) after we changed the partition to ext2 /ext3 this problem
dissapeared.

Maybe this could be the same reason. just a thought.

> -----Ursprüngliche Nachricht-----
> Von: samba-bounces+aseidel=aseidel.com at lists.samba.org
> [mailto:samba-bounces+aseidel=aseidel.com at lists.samba.org]Im Auftrag von
> Brian Merrell
> Gesendet: Mittwoch, 9. Juni 2004 17:09
> An: samba at lists.samba.org
> Betreff: Re: [Samba] Samba just Slow with AutoCad?
>
>
> Yes I am user reiserFS on the AutoCad Shares (Jerry, are you?)
> The older machine is running ext3.
>
> The CPU usage goes up, but I definately wouldn't call it a spike.
> It goes to about 1% which is probably normal.
>
> I did use the nolargeio=1 option and it did increase performance.. but..
>
> I tried timing the time it takes to save.  It takes the older
> machine about
> 1.25 seconds
> to save a 606KB drawing and it takes ~3 seconds for the new
> "fancy" machine.
>
> Could this be due to ReiserFS?
>
>
> ----- Original Message -----
> From: "Rashkae" <rashkae at tigershaunt.com>
> To: "Brian Merrell" <beantoo at tristatesurvey.com>
> Cc: <samba at lists.samba.org>
> Sent: Wednesday, June 09, 2004 7:56 AM
> Subject: Re: [Samba] Samba just Slow with AutoCad?
>
>
> > Hi.
> >
> > Does your new system use ReiserFS?
> >
> > When these ~20 second delays happen, can you see if there's a spike of
> > System CPU time useage on the server?
> >
> > I've not heard of it happening over a network share, but some "poorly
> > behaved" applications can trigger a 'feature', (actually, a
> > performance optimization) with ReiserFS on Newer (2.6) kernels that
> > will make the kernel spin it's wheels for a number of seconds.  If
> > this might be the case for you, you can disable it by mounting a
> > ReiserFS volume with a nolargeio=1 option.  (If you want to test this,
> > it appears to to be safe to remount.  That is, mount /home -o
> > remount,nolargeio=1 As an example.)
> >
> > On Tue, Jun 08, 2004 at 12:26:25PM -0600, Brian Merrell wrote:
> > > I just came across some very interesting information.
> > >
> > > We samba running on an old HP PIII 900.  I just plugged it back in and
> we
> > > opened some backup files we
> > > had on it.  It works just fine with AutoCad.
> > >
> > > Linux gatekeeper 2.4.26 #5 Mon Apr 19 07:15:24 MDT 2004 i686
> Pentium III
> > > (Coppermine) GenuineIntel GNU/Linux
> > >
> > > Samba Version 2.2.8a
> > >
> > > Our new machine is a Dual Opteron machine.
> > >
> > > Linux fileserv 2.6.5-gentoo-r1 #3 Sat May 29 13:32:03 MDT
> 2004 x86_64 5
> > > GNU/Linux
> > >
> > > Samba Version Version 3.0.2a
> > >
> > > The difference is that I need the hard drive space on our new server
> versus
> > > the 40 gigs we have on the older machine.
> > >
> > > The smb.conf file on the old machine is very very basic:
> > >
> > > [global]
> > >
> > > workgroup = TRISTATE
> > > security = SHARE
> > >
> > > [backup]
> > >
> > > path = /usr/backup
> > > writeable = Yes
> > > guest ok = Yes
> > >
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: "Brian Merrell" <beantoo at tristatesurvey.com>
> > > To: <samba at lists.samba.org>
> > > Sent: Tuesday, June 08, 2004 12:07 PM
> > > Subject: Re: [Samba] Samba just Slow with AutoCad?
> > >
> > >
> > > > Terry, Thanks a lot for your reply.  We're really trying to
> solve this
> > > > problem.
> > > >
> > > >
> > > > > Brian,
> > > > >
> > > > >
> > > > > 1.   Which release of AutoCAD are you using?
> > > >
> > > > Autodesk Land Desktop 2004
> > > > 2004.0.0
> > > > Service Pack 1
> > > >
> > > > >
> > > > > 2.   Are the support files for AutoCAD on the client or
> the server?
> > > > >
> > > >
> > > > On the clients.
> > > >
> > > > > 3.   Are you using cups?
> > > > >
> > > >
> > > > No.
> > > >
> > > > > 4.   Is it true that your plotter settings are not being
> saved with
> the
> > > > > drawing?  Was this true when you were using a windows server?
> > > > >
> > > >
> > > > They are being saved with the drawings.  They were also being saved
> with
> > > > the drawings on the windows server.  (the windows server
> was actually
> just
> > > > another client that shared it's HD).
> > > >
> > > > > 5.   Normally when AutoCAD is opening the print dialog box in an
> > > existing
> > > > > drawing, it is trying to find the printer that was used
> by the last
> > > > session
> > > > > of Autocad. If it can't find that printer, it produces the printer
> > > "none".
> > > > > Are you loading your printers from the server such that
> each client
> has
> > > > the
> > > > > identical printer name?
> > > > >
> > > >
> > > > First of all, you're right.  The print dialog only produces the
> printer
> > > > "none" when it's a new drawing.
> > > > Otherwise, it saves the print settings.  But we still experience a
> delay
> > > > independant of whether we
> > > > are printing from a new drawing or an existing one.  The printers
> aren't
> > > on
> > > > the server, and we do
> > > > not have identical printer name.
> > > >
> > > > > 6.   Are the network directories being used by AutoCAD the same as
> being
> > > > > used by the other programs that don't exhibit the long save times?
> > > > >
> > > >
> > > > No.  AutoCad drawings are stored on a seperate harddrive and a
> different
> > > > directory.  However,
> > > > after reading this e-mail I moved a TIF image to the
> autocad directory
> and
> > > > opened them from
> > > > Adobe Photoshop.  I then modified and saved the drawing and
> there was
> no
> > > > delay.  There was also no
> > > > delay for opening a print dialog.  The problem continues to be only
> with
> > > > AutoCad.
> > > >
> > > >
> > > > > We use AutoCAD 2000, 2002, & 2004 with RH E3.0 and Samba
> 3.0.2-6.3E
> with
> > > > no
> > > > > delays in saving or printing and have achieved better performance
> than
> > > the
> > > > > previous W2k server.  With a little more information we might be
> able to
> > > > > assist in finding the bottleneck.
> > > > >
> > > > > Terry
> > > > >
> > > > > -----Original Message-----
> > > > > From: samba-bounces+teleiott=tke-companies.com at lists.samba.org
> > > > >
> [mailto:samba-bounces+teleiott=tke-companies.com at lists.samba.org] On
> > > > Behalf
> > > > > Of Bob Turner
> > > > > Sent: Tuesday, June 08, 2004 10:45 AM
> > > > > To: 'Brian Merrell'; samba at lists.samba.org
> > > > > Subject: RE: [Samba] Samba just Slow with AutoCad?
> > > > >
> > > > > Brian
> > > > >
> > > > > I might suggest a couple of setting changes on your XP machines:
> > > > >
> > > > > 1) Open services and stop/disable Web Client
> > > > > 2) Open windows explorer, go to tools>folder options,
> click the View
> > > tab,
> > > > > and uncheck the "Automatically search for network folders and
> printers"
> > > > >
> > > > > (I'm assuming Windows XP Professional on these settings)
> > > > >
> > > > > Restart and try your printers again.
> > > > >
> > > > > Bob
> > > > >
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: Brian Merrell [mailto:beantoo at tristatesurvey.com]
> > > > > Sent: Tuesday, June 08, 2004 9:50 AM
> > > > > To: samba at lists.samba.org
> > > > > Subject: Re: [Samba] Samba just Slow with AutoCad?
> > > > >
> > > > > Thanks for your response Jerry.
> > > > >
> > > > > Yes.  These are all windows XP machines.  We have about four
> printers
> > > here
> > > > > in the office (all HP hehe).  Only two computers have McAfee
> Firewalls
> > > > > installed, the rest do not have firewalls.  We are on a 100 mbps
> > > ethernet
> > > > > with a 16 port hub.  Nothing too fancy.
> > > > >
> > > > > AutoCad is a strange beast.  No matter what printer you
> have set up
> as
> > > > your
> > > > > default printer, when you click the print icon or give the print
> > > command,
> > > > > AutoCad comes up with no printer selected in the print dialog, and
> the
> > > > user
> > > > > selects the plotter each time (although you can save your print
> > > selections
> > > > > for each drawing).  I have even tried setting the default
> printer to
> the
> > > > > "PDF distiller" and it still takes the same ammount of
> time for the
> > > print
> > > > > dialog to come up.
> > > > >
> > > > > However, I was just tinkering with the print settings and noticed
> that
> > > the
> > > > > print dialog comes up normally some times.  i.e. If you
> click cancel
> on
> > > > the
> > > > > print dialog and then hit the print icon again quickly,
> it seems to
> come
> > > > up
> > > > > normally.
> > > > >
> > > > > The other mysterious problem is the time it takes to save.  I just
> saw a
> > > > guy
> > > > > behind me try to save a drawing and it took about 20 seconds.
> Something
> > > > > that never happened before when the files were hosted on an older
> > > windows
> > > > XP
> > > > > machine with a heavier load.
> > > > >
> > > > > I'm all out of ideas and really don't want to go back to windows.
> > > > >
> > > > > brian.
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Gerald (Jerry) Carter" <jerry at samba.org>
> > > > > To: "Brian Merrell" <beantoo at tristatesurvey.com>
> > > > > Cc: <samba at lists.samba.org>
> > > > > Sent: Tuesday, June 08, 2004 8:27 AM
> > > > > Subject: Re: [Samba] Samba just Slow with AutoCad?
> > > > >
> > > > >
> > > > > > -----BEGIN PGP SIGNED MESSAGE-----
> > > > > > Hash: SHA1
> > > > > >
> > > > > > Brian Merrell wrote:
> > > > > > | No good.  It's still amazingly slow.  It seems to perform
> > > > > > | just fine until the user tries to print.  There is a huge
> > > > > > | delay before the print dialog comes up, and when the user
> > > > > > | tries to save there is another huge delay.  The
> > > > > > | problem seems to be only with AutoCad.
> > > > > >
> > > > > > Sorry I'm late on this thread.
> > > > > >
> > > > > > Are these XP clients?  Do the clients have a
> > > > > > active firewall installed.  If the delay is only
> > > > > > when printing, it is probabl either
> > > > > >
> > > > > > (a) a very chatty printer driver, or
> > > > > > (b) timeouts when the client tries to
> > > > > > ~    open a print change notify handle.
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > cheers, jerry
> > > > >
> > >
> > - ----------------------------------------------------------------------
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