By too much; the 256MB nodes can cope with 1 GUI program such as Open Office or even VLC although video playback (from a local USB mount, not /home on the server) is jerky. Opening a 2nd GUI program on the same node; esp gnome_system_monitor, effectively knocked the node down. Luckily there is still the tty1 on ctrl-alt-F1. I had 14 nodes up at 100 Mbps, there were 5 of us trying out programs on a node each, with some swapping as nodes froze up. The 1 Gb dual core 1.6 GHz node held up OK even running Blender. Swap is maxed out on the 256MB nodes. Most of these had no HDD so this must all be held in the local node RAM.
I will try a low fat Nubae install later in the week and give that a go. Here is a ps aux sorted by CPU power of 1 node. The actual CPU levels seem pretty low. Puse audio is not working but that is the least of my worries. I will need to try a -k4 switch to check the memory useage. $ ps aux | sort -rn -k3 | head student1 5310 2.2 4.0 174096 61780 ? Sl 13:28 0:09 /usr/lib/openoffice/program/soffice.bin -writer -splash-pipe=5 root 5018 2.2 0.8 25236 12704 tty7 Ss+ 13:27 0:10 /usr/bin/X :0 -br -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7 student1 5156 0.8 1.2 35276 19876 ? S 13:27 0:03 gnome-panel student1 5331 0.7 1.1 40276 17240 ? Sl 13:32 0:01 gnome-terminal pulse 4250 0.6 0.2 27316 3520 ? S<l 12:16 0:29 /usr/bin/pulseaudio --system --exit-idle-time=-1 --disable-shm --no-cpu-limit --resample-method=trivial --high-priority -L module-detect -L module-esound-protocol-tcp auth-anonymous=1 -L module-native-protocol-tcp auth-anonymous=1 -L module-volume-restore -L module-rescue-streams -L module-native-protocol-unix -n student1 5158 0.5 1.4 53472 22332 ? S 13:27 0:02 nautilus --no-desktop --browser student1 5142 0.4 0.6 18844 10360 ? S 13:27 0:01 /usr/bin/metacity student1 5221 0.1 0.7 26348 11376 ? Ss 13:28 0:00 gnome-power-manager student1 5214 0.1 0.8 25532 13796 ? S 13:28 0:00 update-notifier student1 5213 0.1 0.8 25492 12952 ? S 13:28 0:00 python /usr/share/system-config-printer/applet.py -- edubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
