On Sat, Apr 3, 2010 at 6:54 AM, Robert Arkiletian <[email protected]> wrote: > On Thu, Apr 1, 2010 at 7:09 PM, R. Scott Belford <[email protected]> wrote: >> On Thu, Apr 1, 2010 at 3:29 PM, Rob Owens <[email protected]> wrote: >>> If the problem is Firefox making too many writes to the users' cache >>> files, as some people have speculated/demonstrated, then this isn't an >>> LTSP-specific problem. It should affect any system that has many >>> simultaneous users accessing /home, such as NFS-mounted home. I imagine >>> that's pretty common, so I'm surprised that this isn't a more >>> widely-complained-about problem. >> >> Yes. I'll confess that I've been spending more time with the NFS >> dependent DRBL setups lately, and it's a problem. The only thing the >> teacher knows is that it's broken; impatient children just start >> clicking. I handle it by balancing disk arrays and I/O, using Squid >> when possible, changing browsers, reducing cache, and now, thanks to >> this thread, I'm pondering ramdisk. >> > > I am also using DRBL and I have not experienced any of these issues. > The only small lag is at app launch to download the binary executable > over nfs. Once up Firefox is fine. Even a class of full screen video > is fine. As for scaling, some school districts deploy 1 DRBL server > per school (~ 200 clients).
That's great to hear. I wonder - do you use the SSI setup with DRBL, or does each user has his/her own /etc and /var directories? It's possible that some of education apps our schools are using depend more on Firefox's cache. Have you modified the cache settings per client? >> >> --scott >> > -- > Robert Arkiletian > Eric Hamber Secondary, Vancouver, Canada ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
