Hi all, I am running LTSP on Ubuntu 10.04 LTS, with local apps enabled. I notice that when I have 30 + users logging on via the TC gui at once, running 'top' shows a load average above 25 for several minutes. Running the program iotop shows me that the each user is running a sftp-server process which is accounting for the majority of the disk i/o during that time.
In an attempt to minimize disk i/o I have my /home partition mounted on a separate disk mounted with: /dev/sdb1 on /home type ext3 (rw,noatime,data=writeback) My authentication on the back-end is handled by Samba/winbind using IDMAP to bind with Active Directory. I was wondering if anybody could give me some guidance as how to figure out how to tame this situation. One idea I have is that sftp-server is waiting around for authentication information to come back from winbind and that's causing the delay but I am not sure how I would check that. I guess the other possibility is that sftp-server is not very efficient... Any ideas you'd care to share would be appreciated. Thanks! John ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
