FW: Speed comp. TNG & 2.2.alpha (fwd)

[Luke Kenneth Casson Leighton]

andrew,

appreciate your rewsponse.

do you, by chance, have a large number of unix groups and large numbers of
users in those groups?

luke

On Fri, 23 Feb 2001, Andrew Bartlett wrote:

> For some reason I implemented TNG in a production environment (I needed
> user-level security for Win9X shares), and noticed an immediate slowdown
> for logons and I had reports that logons where timing out, with users
> unable to login before the timeout - even pressing retry for 45min!
> 
> These logins are from NT4, with a logon applet that sends 2 incorrect
> passwords (local user, new user with no password) before the final
> password from the user.  When the system is not in use a logon (with the
> applet) took 30secs with TNG compared with immediate on 2.2
> 
> Other logons are from Win9X, as standard domain logons.
> 
> I ended up having to move back to 2.2, but I should note the mitigating
> factors:  
> I enabled and used utmp, syslog and quotas (all of which I am sure are
> entirely untested).  
> 
> My system in RedHat 6.2 on a p166, on a separate subnet from the
> clients, with a firewall in between.   
> 
> Just another data-point,
> Andrew Bartlett
> 
> Luke Kenneth Casson Leighton wrote:
> > 
> > raoul,
> > 
> > i am fascinated.
> > 
> > did you set any debug log levels?  remember: if you set log level to 100
> > on TNG, expect a performance hit of about a factor of ten or 20!
> > 
> > did you compile TNG with dynamic libraries or static?  (it's a ./configure
> > option, the default is dynamic.  it affects the binary size - vastly
> > smaller: smbd is... urr... 417k in TNG latest cvs instead of.... urr...
> > 2meg?  - but has an overhead of 15% roughly on the actual function calls
> > etc. and also on the libaries all being PIC - position independent code)
> > 
> > another recommended test:
> > 
> > how long does a domain logon take?
> > 
> > important things to do:
> > 
> > reboot the client in between tests.  wait for the dialog box to come up.
> > wait for the client disk to stop spinning.  wait another 20 seconds.
> > _then_ log in, starting the timer from then.
> > 
> > include downloading your user-profile, if you have one.  do not modify the
> > desktop as you log out.
> > 
> > run this twice (each machine) to make sure.
> > 
> > many thanks raoul,
> > 
> > luke
> > 
> > -----Original Message-----
> > From: tng-users-bounce at lists.dcerpc.org
> > [mailto:tng-users-bounce at lists.dcerpc.org]On Behalf Of Raoul Schroeder
> > Sent: 21 February 2001 15:54
> > To: users tng
> > Subject: Speed comp. TNG & 2.2.alpha
> > 
> > Just in case anyone was interested, I compared the speed of TNG and
> > 2.2.alpha...
> > This was the setup:
> > FreeBSD Release 4.1
> > TNG 2.6 good  vs. 2.2.alpha from CVS
> > Pentium III 750 with 128MB and 2 Ultra-2LD SCSI Harddisks (18 GB each)
> > Three shares are set browseable.
> > Domain logons are enabled. (Win2K and WinNT)
> > 
> > Initial browsing in Windows Explorer (finding drives R:, S:, V:):
> > TNG: 0.4 - 0.5 s (is slightly difficult to measure, dunno how much is
> > Windows, how much is TNG related)
> > 2.2.alpha: around 2 s
> > 
> > Copying of 100 MB (mixture of small and big files) from the server:
> > This was unfortunately mainly limited by the fact that I am sitting on a
> > 10 MBit half duplex network, partially switched.
> > TNG: 6 minutes
> > 2.2.alpha: 9 minutes
> 
> -- 
> Andrew Bartlett
> abartlet at pcug.org.au
> 

 ----- Luke Kenneth Casson Leighton <lkcl at samba-tng.org> -----

"i want a world of dreams, run by near-sighted visionaries"
"good.  that's them sorted out.  now, on _this_ world..."