Has anyone gotten better performance or got around a performance issue by using openmosix with a few other servers or perhaps on all of the clients? Just a thought I had and wondered if anyone else had done that.
Thanks, -Tim > -----Original Message----- > From: Eric Harrison [mailto:[EMAIL PROTECTED] > Sent: Monday, August 18, 2003 11:30 PM > To: [EMAIL PROTECTED] > Subject: Re: [Ltsp-discuss] server/user capacity > > > On Mon, 18 Aug 2003, Jason Greene wrote: > > >We are evaluating Linux in the Company I work for. We have over 60k > >desktops. > > > >I'm on the evaluation team and I'm really pushing the LTSP idea for > >call > >centers and the like. > > > >What I'd like to ask the LTSP team and all it s users is > "What is the > >capicity of a server?" Meaning how many users can a server haneld. > > As others have mentioned, it really depends on the apps & the > usage patterns. > > I work with schools, which can be a "worst case" in terms of > both apps and usage patterns. > > We have many labs that have 40+ terminals where everyone logs > in at the same time, everyone runs the same application at > the same time, etc, etc. At the end of the hour, everyone > logs out, moves to the classroom down the hall, logs in > again, and relaunches applications, all at the same time... > This constant, consistant, logging in & out and launching > applications is much more brutal on a server than a typical > business's usage patterns. > > For these school lab environments, we typically recommend: > > * Minimum of 256M ram for the server, plus 50M of ram for > every concurrent > session. For 35 concurrent sessions, the minimum would be > 2G of ram > (256 + 50 * 35). The more ram, the better. > > * IDE drives die around 10 concurrent users. Fast SCSI or FC > drives are > manditory for a large number of concurrent users. The > faster the better. > > * After 30 or so concurrent sessions, it starts to help having a GigE > uplink to the server. > > * CPU speed is typically the last bottle neck you'll hit. > We have several > servers with a single 1Ghz processor that do ok. Not fantastic but > tolerable. Dual 2+ Ghz Intel/AMD boxes rock. > > For a typical school lab, dual 2.4Ghz Xeons, 2G of ram, and > an Ultra320 SCSI drive tends to be the sweet-spot. > > -Eric > > > > ------------------------------------------------------- > This SF.Net email sponsored by: Free pre-built ASP.NET sites > including Data Reports, E-commerce, Portals, and Forums are > available now. Download today and enter to win an XBOX or > Visual Studio .NET. > http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet _072303_01/01 _____________________________________________________________________ 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 ------------------------------------------------------- This SF.net email is sponsored by Dice.com. Did you know that Dice has over 25,000 tech jobs available today? From careers in IT to Engineering to Tech Sales, Dice has tech jobs from the best hiring companies. http://www.dice.com/index.epl?rel_code=104 _____________________________________________________________________ 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
