[K12OSN] Experience at Glenburn this week.

[Shane Stafford]

Thanks, I will try a different session type.  So, are you finding a
noticeable speed increase with IceVM?  We had a good time this week.  But,
now I think I need to get better a tweaking the process.

Our server is 2 xeon processors, somewhere over 2.5 gig,  and 4 Gig of
memory., we had a lab of 28, a lab of 14, and a lab of 7 this week.  Most
times we had about around 35-40 teachers on at the same time.  For the
most part we go good performance.  A couple of the major issues

1) Occassional Lockups -- some of the orphan process variety, where if I
logged on as root, I could see the user's process, using the ps -u
username command and I could kill processes to get them unlocked   
But the problem lockup was when I did a ps -u username command and nothing
showed, yet the user's station was locked up.  At that point we did reboot
the specific client.  But, while it wasn't terrible, we did get a couple
to 3 per 1 1/2 class session.  And then sometimes we got a person who just
seemed to lock them up several machines in a row, and that was after I
check to see if they had active processes before they logged in again.

2) Some slowdowns.  We hit a wall today when we were teaching First Class,
I couldn't even log on the main server as root it go so slow.  I had to
have one lab log off and just watch the instructor demonstrate.  I wish
they would upgrade the Linux First Class beta client, wow is it buggy, but
our staff lives and dies by first class.  And the web version is still
clunky.

Maybe we should switch to icevm.  I hate to switch the faculty after this
great week of work, but I guess they mostly use the education menu, Open
Office, mozilla and First class, so if I modify the IceVM menu to reflect
those, we would be in good shape.

other "best practices" tips to improve server performance.

thanks
shane
>
>
>True...uncomment the line that Huck mentioned above and reboot the clients
>(and maybe the server) ....it does work as I've used it.  As for
>sound...that can be trickier depending on the client.  What are they
>running for a sound card?  First of all, in lts.conf....make sure   SOUND
>= Y  set the volume up a bit to around 100....you may need to uncomment
>the SMODULE line for ISA cards.  Generally doesn't hurt to uncomment
>anyway....I do.  Also...I'm finding that sound in 4.1 is only working well
>in IceWM.  It doesn't work in GNOME...and I'm not complaining because we
>don't want to use GNOME....too slow.
>
>David N. Trask
>Technology Teacher/Coordinator
>Vassalboro Community School
>dtrask at vcs.u52.k12.me.us
>(207)923-3100
>
>
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>



Shane Stafford, MCSE, MCT
Director Information Services Glenburn School and Town
Educational System Integrator/Network Engineer
S & B Consulting