here's an update on my memory issues: I switched to a thin client with local apps setup. Now 512M is plenty of memory for chrome as a local app if everything else runs from the ltsp server. I was using fat clients because of network slowness. Looks like fixing flow control is going to help my network actually use the gigabit port in the server. * https://help.ubuntu.com/community/UbuntuLTSP/FlowControl*
On Sat, Sep 4, 2010 at 10:47 AM, Nick Fenger <[email protected] > wrote: > Jonathan, > > I also ran into some memory problems on a 512MB machine. Disabling certain >> things that run on startup (most notable jockey-gtk and italc) reduced the >> memory usage > > > I am impressed that these machines run very well for 10-20 minutes, I can > browse the web and run flash and java sites & openoffice simultaneously, > however, swap inches up and things start crashing. A reboot is the only way > to clear the swap back to 0. > > I do expect that with only 512MB of ram I will need remove anything extra - > thanks for the suggestions. This appears to be more like a memory leak, > however, I'm wondering if it's related to the lucid x memory leaks found > during beta testing. I can't seem to find what's hogging the swap memory? > > Thanks, > > -Nick > > > On Sat, Sep 4, 2010 at 10:34 AM, Jonathan Carter (highvoltage) < > [email protected]> wrote: > >> Hi Nick >> >> On 04/09/2010 13:21, Nick Fenger wrote: >> > I'm having an issue where swap fills to 100% (0Kb free) after >> > running applications such as openoffice and chrome/firefox but does not >> > decrease substantially when the applications are closed. Ultimately when >> > swap reaches 100%, browser plugins start crashing (java, flash). >> > >> > The configuration is a mostly out-of-the-box fat-clients (32Bit 3.2Ghz >> > 512MB intel video systems) with a Ubuntu 10.04 Lucid image I built with >> > the --fat-client option of ltsp-build-client on a 64Bit Server. I've >> > made no customizations is Lts.conf. >> > Thank you for your support, >> >> In my initial tests with diskless fat clients, I also ran into some >> memory problems on a 512MB machine. Disabling certain things that run on >> startup (most notable jockey-gtk and italc) reduced the memory usage >> quite a bit and made it possible to log in and use the machine much >> better. >> >> It doesn't quite sound like you have the same issue that I had, but >> perhaps even removing some of these session startup programs might fix >> yours as well. >> >> -Jonathan >> > > > > -- > Nick Fenger > -Information Technology > -6th Grade Outdoor School > -Trillium Board Member - Communication Committee > > Trillium Charter School > 5420 N. Interstate Ave > Portland, OR 97217 > (503) 285-3833 > http://www.trilliumcharterschool.org > > "If there is no struggle, there is no progress. Those who profess to favor > freedom, and yet depreciate agitation, are men who want crops without > plowing up the ground. They want rain without thunder and lightning. They > want the ocean without the awful roar of its many waters. This struggle may > be a moral one; or it may be a physical one; or it may be both moral and > physical; but it must be a struggle." > > — Frederick Douglass <http://en.wikipedia.org/wiki/Frederick_Douglass> > > -- Nick Fenger -Information Technology Trillium Charter School 5420 N. Interstate Ave Portland, OR 97217 (503) 285-3833 http://www.trilliumcharterschool.org
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