On Sunday 20 March 2005 19:53, Eric Feldhusen wrote: > John H Terpstra wrote: > > On Sunday 20 March 2005 03:55, Honey Bajaj wrote: > >>I have configured samba domain in our network of around 150 windows node, > >>we are running 4 Samba server, Samba acts as PDC, member server, > >> everything was running fine with windows 98, until we start upgrading > >> our systems to windows xp, the network started becoming choke and > >> problem of slow access arises everyday, I have checked with ethereal and > >> the traffic generated by windows xp is almost thrice for the same work > >> which windows 98 did. Please provide me some solution to overcome this > >> problem. > > > > Wow, only twice the traffic! Something tells me your metrics are a little > > off. From my evaluation it is more like 3-5 times as much traffic for the > > same operations, but it makes a difference what you are measuring. > > > > For example, opening a directrory with 1000 or so file in Windows > > Explorer could cost up to 6 times more I/O traffic. > > > > Windows XP SP2 is a beast for traffic increase. The solution is revert to > > 98 - or else bit-the-bullet by migrating to Linux. > > I have noticed a similar problem to this as I began moving from Windows > 98 to Windows 2000 a couple of years ago at a school I system adm. I > thought at it was purely due to how Windows 2k/XP handled their roaming > profiles with all the data that moves back and forth during > login/logout. Any thoughts on what the reason is for the increased i/o > for similar operations?
Sure! The protocols are very different. Windows 2000 Pro and XP Pro use far more of the MS DCE RPCs than 9x/Me. Additionally, XP Pro in particular tried to the newer protocol extensions (supported only by Win 2003 Server and ADS) then backs-off. It does this in a number of ways before it eventually uses the NT4 style protocols. The overhead is significant - even with Win 20003 server! Furthermore, Win XP Pro negotiates Unicode support which is not supported by Win 9x. That too adds overhead. So, in summary, get used to it - Windows networking protocols are just noise on the wire! :-) - John T. -- John H Terpstra Samba-Team Member Phone: +1 (650) 580-8668 Author: The Official Samba-3 HOWTO & Reference Guide, ISBN: 0131453556 Samba-3 by Example, ISBN: 0131472216 Hardening Linux, ISBN: 0072254971 Other books in production. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
