Zoilo Gomez schrieb:
But I was not too impressed with these Google responses. Some of the responses in this list however I found quite valuable and interesting; so thank you all for the support!
Let me just add a few screenshots of my "Screen 6" keeping all the technical stuff watching my LTSP server. I don't want to flood this list with the pictures, so I stored them on our website and hope the links I type in are working for everyone.
The server is a double Xeon with 2.4 GHz and 4 GB RAM, simple 100 MBit network and two SATA HDs.
On the first screenshot http://www.eilert-sprachen.de/temp/bild1.png you can see a typical situation of higher load.
The panel on the left shows the two labs. It belongs to the program on the lower right showing the "who" list and the number of users.
There are two groups working in our two labs, at least one of them appearently works with wine (Word I guess). I can see this from the large yellow CPU load topping the blue one. There is less buffer in RAM (yellow) but a lot of blue one for the apps running (almost 800 processes at this time). But you will also see that a few folks logged out recently, the curves going down slightly and some of the places changed from green to gray.
Don't wonder about that "CPU 39%" window - this window watches the internet router, and it is not the LTSP server's CPU load.
The break comes in http://www.eilert-sprachen.de/temp/bild2.png and students are leaving the labs. RAM usage goes down but does not increase buffer at first. Of course, nobody switches off her/his computer but just loggs off, so they all remain gray - and consume power :-) By the way, that hight network load is unusual and only occurs when several folks watch internet sites with animated gifs or flash animations.
Next lesson begins in http://www.eilert-sprachen.de/temp/bild3.png and you can see that the moment of many users logging in at the same time takes a lot of CPU power. As soon as everyone is logged in, CPU load goes back to normal.
Picture http://www.eilert-sprachen.de/temp/bild4.png shows a situation early in the morning with only a handful of bored folks logged in and RAM buffer extremely large.
Let me just add http://www.eilert-sprachen.de/temp/bild5.png to show an extreme login situation. One group went into the second lab which was empty before and logged in almost parallely. It's obvious that the server has problems to balance this load, but as I was working on the machine at the same time I can confirm that I did not feel this load (e. g. slower opening of windows etc.)
Hope you can watch the pictures and take some information from it. Regards Rolf ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _____________________________________________________________________ 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
