Hi Scott, Thanks for your response, it's very enlightening. I appreciate you taking the time to put in some examples illustrating what you are talking about as well.
> LTSP is NOT a panacea. A thin client will never, EVER be 100% of the > experience of a full workstation. We've done lots of things to make LTSP as > "like" a full workstation as we can, with things like Localapps, that allows > you to offload some of the work on the thin client itself. There's also > Stephane's ltsp-cluster work which can also address this problem. I understand what your saying, and I hope that Local apps or clustering or better switches would help me out, but since flash-rich web content is apparently going to be the predominate web experience going forward LTSP basically has to do that well or become less relevant. I understand what you mean about not being able to manufacture cycles out of thin air. I am merely pointing out the kind of push that teachers give me. > > Or, help out projects like Gnash which do the same thing for MUCH less cpu. > By > way of a "single case" instance, here's a line out of top, with me viewing a > youtube video using the adobe flash player: > > 2049 sbalneav 20 0 495m 120m 35m S 38 6.0 4:09.80 firefox > > The "38" column's important. That's 38% cpu usage. This is on a dual-core > 3.0ghz workstation with 2 gigs of ram. A not inconsiderable box. 38%, over a > 1/3 busy. So, if I hosted 2 other terminals, and THEY were watching youtube, > I'd be at 100% util. > > Now, Here's me watching the same video, using Totem as my movie viewer: > > 4208 sbalneav 20 0 201m 43m 20m S 6 2.2 0:02.41 totem > > 6 percent. So, if I had 15 other terminals hanging off my box, watching > youtube videos, I'd be at 100% Yes, but totem won't help out with Google APPs etc. Gnash is hopeful, but wasn't ready for primetime the last time I looked at it (several years back). I guess it bears another look. > Because LTSP hasn't been brought to it's knees. The SERVER has been brought > to > it's knees by flash. > > It's just that, WITHOUT ltsp, you never SEE the box being brought to it's > knees > because, well, while you're watching the video, you're not doing anything > else. > So since flash is being called by Firefox would it be pointless to script something where all users you ran firefox were automatically nice'd to 15 or some such since I wouldn't have any power over the flash instance? I'll keep testing on my Karmic test box, maybe I can get this out there faster than I think, and with out too many hiccups. Thanks again! John -- edubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
