Re: Testing questions

[Jean-Francois CLEMENT]

Oliver Grawert wrote: 2. The memory usage after boot is great- just about 32MB. With the average amount of software (OOo, firefox, etc), it goes up to about 37MB. If I open as much as I can and try to trash the system, it goes up to more or less 42MB. Does this mean that the spec for the 32MB thin client usage will mean that the initial memory usage of the thin client will be 32MB, or should it be less than that at boot and increase when opening more programs? 3. https://wiki.edubuntu.org/EdubuntuLtsConfParams reports that SWAP_SERVER is implemented, but not tested. How would I configure this? With just a SWAP_SERVER = 192.168.0.254 in the lts.conf file? The above RAM usage should be fine on a 32MB computer, if it can swap to the server. 10MB is very easy to swap out over the network. even with ltsp 4.1 you wont start any app on a thin client without swapserver, its able to boot, but logging in and starting firefoxx willl kill the machine ... if you set up the nbd-server package on the server and point the client to it (setting SWAP_SERVER and NBD_PORT in your lts.conf) it should just work ... anyway, i want to improve the situation in dapper+1, see: https://wiki.ubuntu.com/FullyAutomaticSwapServer I think than Jonathan talk about usage of large software on the server side but (I don't now why) with little effect (10Mo) on the client side. 4. The new Intel server boards have a strange "feature", where there's some kind of a gap between 3GB and 4GB RAM. This means that, if have 4GB RAM installed (typical for LTSP servers), you will only be able to see the first 3GB, and would need to install a kernel that supports 64GB RAM to see the full 4GB. Would it be possible to ship Edubuntu with a kernal for support for 64GB RAM? And what about SMP support? Does Edubuntu do that? that would mean to drop support for i386 generic from the CD (since we can only ship one kernel package) which indeed would break many clients that are not 686 standard (we use the same kernel for client and server on install) i was planning to put a little section into the docs describing how and why to get a 686-smp kernel It's not a kernel problem, with an 686 or even with an x86_64bits kernel you'll see about 3.2 GB with 4 GB installed. In fact lot of manual of motherboard write this limitation, for example in the ASUS A8S-X (recent mobo) you can read : "Due to chipset resource allocation, the system may detect less than 4GB of system memory when you installed four 1GB DDR memory modules." Other thing, for debug client purpose, can you recall to me (or to all) howto validate a root text session on the client ? only with option in lts.conf ? heh, me as well ... i havent seen *anything* yet :) thanks for this wonderful feedback, its really appreciated :) ciao oli [1] http://people.ubuntu.com/~ogra/LTSPManager/ Thanks again for all bye JFC -- Jean-François CLEMENT I.3.S - LaTIM Inserm U650 tel:02.98.01.81.08 fax:02.98.01.81.24

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