[Samba] Samba just Slow with AutoCad?

[Brian Merrell]

John, (Sorry for the duplicate, but I wanted to send this to the list also)

I'm running version  3.0.2a

and just for the record,

root at fileserv bean # uname -a
Linux fileserv 2.6.5-gentoo-r1 #3 Sat May 29 13:32:03 MDT 2004 x86_64 5
GNU/Linux

Thanks,
Brian.


----- Original Message ----- 
From: "John Mazza" <maz at maznets.com>
To: <samba at lists.samba.org>
Sent: Monday, June 07, 2004 9:05 AM
Subject: Re: [Samba] Samba just Slow with AutoCad?


> I would try turning off the "Strict sync" option.  I would also test it
with the oplock
> options disabled as well.
>
>
> On Mon, 7 Jun 2004 08:59:34 -0600, Brian Merrell wrote:
>
> >This is from 1998:
> >
> >"We've had serious performance problems loading AutoCAD R14 .dwg files
from
> >a
> >VAResearch VArServer 3000 (dual 400MHz PII, Red Hat 5.0, SAMBA 1.9.17p4,
> >256MB RAM, 36GB RAID5). The problem is that on first access, trying to
read
> >the .dwg file is very, very slow"
> >
> >This is from 1999:
> >
> >"A friend of mine just had a big problem with Samba, which we eventually
> >solved. The problem was that NT clients did well on a copy in a command
> >prompt, but were terribly slow when opening the same file in Autocad.
> >
> >(Compared to serving the file from an NT server).
> >
> >The solution was well hidden in dejanews and the Samba documentation
> >somewhere; we had to set
> >socket options = SO_SNDBUF=4096 SO_RCVBUF=4096"
> >
> >I have found a couple of other people complaining about performance with
> >AutoCad.  I have tried the above fix, and I did not notice any difference
> >whatsoever.  I have also tried generic speed fixes like this:
> >http://www.dd.iij4u.or.jp/~okuyamak/Documents/tuning.english.html to no
> >avail.
> >
> >This is very important to our company, and I may be forced to use a
windows
> >server if I cannot resolve this problem.  We had our files on a Windows
XP
> >machine (with worse hardware than we are using now) and it was running
quite
> >a bit faster than the Samba server we have now.  The speed problem,
however,
> >only seems to be with AutoCad.
> >
> >Here are some smb.conf's I have tried:
> >(I have tried SO_SNDBUF=8192, and 4096)
> >
> >[global]
> >
> >workgroup = TRISTATE
> >security = USER
> >netbios name = SERVER
> >encrypt passwords = Yes
> >smb passwd file = /etc/samba/private/smbpasswd
> >
> >
> >oplocks = true
> >ole locking compatibility = no
> >read prediction = true
> >strict sync = yes
> >
> >socket options = IPTOS_LOWDELAY TCP_NODELAY SO_SNDBUF=2920
> >
> >hosts allow = 127.0.0.1 10.0.0.0/24
> >hosts deny = 0.0.0.0/0
> >
> >
> >
> >[Drawings]
> >
> >path = /fileservice/drawings
> >writeable = Yes
> >browseable = Yes
> >read only = No
> >guest ok = No
> >comment = autocad related files and misc files
> >valid users = drafter
> >
> >[Topowork]
> >
> >path = /fileservice/topowork
> >writeable = Yes
> >browseable = Yes
> >read only = No
> >guest ok = No
> >comment = adobe related files
> >valid users = drafter
> >
> >AND:
> >
> >[global]
> >
> >workgroup = TRISTATE
> >security = USER
> >netbios name = SERVER
> >encrypt passwords = Yes
> >smb passwd file = /etc/samba/private/smbpasswd
> >
> >[Drawings]
> >
> >path = /fileservice/drawings
> >writeable = Yes
> >browseable = Yes
> >read only = No
> >guest ok = No
> >comment = autocad related files and misc files
> >valid users = drafter
> >
> >[Topowork]
> >
> >path = /fileservice/topowork
> >writeable = Yes
> >browseable = Yes
> >read only = No
> >guest ok = No
> >comment = adobe related files
> >valid users = drafter
> >
> >
> >
> >Any help would be greatly appreciated.
> >
> >Brian Merrell
> >
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