tor, 2004-09-23 kl. 08:16 skrev Dag Sverre Seljebotn: > > But it's starting to get a little slow when all 16clients are starting > > OpenOffice so a friend of mine talked about using xfs or maybe reiser4 > > What I would look at first is the memory setup. How much memory do you have? > Where do you swap? You see, 16 clients in Openoffice really shouldn't result > in that much disk access (Linux is smart enough to load openoffice program > files into memory once for all those 16 clients), however it should result in > a lot of memory being used (for stuff openoffice stores in a session-specific > way), and so the disk access could come from swapping. > > Just run "free" when all 16 clients are using it and you'll see if it is using > swap and if that is the cause. > > If it is, best solution is of course to buy more memory. To improve swap > performance you can also look into taking swap out of your raid (allocate > 500MB to 1 GB on each disk for swap and then specify all of them with the > same priority, Linux will use them interchangeably, a little like RAID > striping but with less overhead). Downside of doing that is that a disk > failure it will take the server down (and you might have to reformat swap > partitions from a rescue disk before booting it again, I don't know if the > boot scripts are smart enough to do this automatically, they might be), you > still have the data reliability of RAID 5 but not the uptime reliability. > > Memory requirements does scale linearly with the number of users (after the > first one, which needs a lot more). I'm running eight on 1 GB and that seems > to work just fine, but if you have less than 2 GB it might be memory. > > Also inspect the CPU load. > > // Dag Sverre >
Thanks for the answer I have 1Gb memory and my 3 swap partitions are set up in a round-robin way As we run this test yesterday we newer used more than 70% cpu All the clients have 32mb of memory or some new machines (50%) have 128 they are all using nfs-swap, is there a way to se how much memory and swap the klients are using?? /Jesper - Denmark > > > ------------------------------------------------------- > This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 > Project Admins to receive an Apple iPod Mini FREE for your judgement on > who ports your project to Linux PPC the best. Sponsored by IBM. > Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php > _____________________________________________________________________ > 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 ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _____________________________________________________________________ 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
