[K12OSN] Something slowing me down...how can I measure?

cliebow at downeast.net cliebow at downeast.net
Thu Sep 9 00:51:34 UTC 2004

david..i'msure yyou have looked in all the usual places..for runaways and
mem hogs...can you bring it up in 3LTSp??even on a cach as catch can
basis??does nfs sort of hang when terminals boot up??or when server boots
up??i ha an awful slow response when switching a server to a diff subnet
cause of stale nfs in /var/lib/nfs...i actually ripped out contents of
same..since yesterday response has improved by a factor of 5..chuck

> Ok,
> We've gone a couple weeks with K12LTSP 4.1 based on FC2.  Very
> stable...very configurable...etc.etc.....BUT...something is making things
> slower.  The only change I've made....and it's significant is that I'm now
> on one network and not segregated into my regular network and my K12LTSP
> network.  I'm using another DHCP server instead of the DHCP on the K12LTSP
> box.  Now...everything is working well...things are pretty responsive, but
> they don't seem as fast as 3.12.  More than anything...programs like
> Firefox take a while to load....almost a minute or more.  It's a little
> frustrating.  (other programs like AbiWord seem to load with normal speed)
>  I'm using gigabit for my backbone with Amer.com SR24G2's all over.  I
> link from one switch to the other via gigabit.  The servers all have
> gigabit.  Memory is not an issue....I never go into swap.  My server is a
> dual Xeon 2.x ghz with 4 gb RAM.  I believe I'm using the 2.6 kernel.  Any
> suggestions on what to look for to tweak my speed a little more?  Any way
> that I can graphically measure the speed or traffic on my network and
> whose causing the problems?  The weird part is....K12LTSP is a little
> sluggish, but Win 2003 server running from within K12LTSP (rdesktop) is
> quite fast!  (at all times).  Any ideas?
> David N. Trask
> Technology Teacher/Coordinator
> Vassalboro Community School
> dtrask at vcs.u52.k12.me.us
> (207)923-3100
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