2010/1/22 Robert G. (Doc) Savage <[email protected]> > I've been trying F12's vinagre as a means of remoting a RHEL5.4 server's > display to a central console. A full screen display can be remoted with > vinagre, but the VNC connection is quite slow and pausey even over a Gigabit > Ethernet. This slowdown is not just on the remote F12 viewing console. The > connection is driving one of four cores on the RHEL5.4 server to almost > 100%, dramatically dragging performance down on its local console. Here's a > snapshot of "top" several minutes *after* the vinagre connection is > dropped: > > top - 23:57:46 up 6 days, 8:02, 5 users, load average: 2.81, 2.55, > 2.47Tasks: 253 total, 3 running, 250 sleeping, 0 stopped, 0 > zombieCpu(s): 13.2%us, 2.2%sy, 0.0%ni, 59.7%id, 0.0%wa, 0.1%hi, 24.8%si, > 0.0%stMem: 8175136k total, 8135640k used, 39496k free, 191424k > buffersSwap: 2032212k total, 216k used, 2031996k free, 6328248k cached > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 9 root 39 19 0 0 0 R 99.7 0.0 213:12.23 ksoftirqd/2 > 4521 root 17 0 276m 58m 20m R 52.2 0.7 923:43.59 Xorg > 4812 doc 15 0 316m 22m 15m S 3.0 0.3 285:21.38 > vino-server [snip] > > Can someone suggest a safe way to bring the load average back to its > "pre-vinagre" value of ~0.05. The "kill -9" command is ineffective on > ksoftirqd. >
I don't know what is causing the problem with vinagre, but it's worth checking the gvnc web site for update and you might want to try the sample gvncviewer.py to see if you get the same problem. The problem might actually be with vino (to which vino-server belongs) that behaves badly when its connection gets dropped. Fortunately, you can't kill ksoftirqd as it's a kernel thread (if you could kill it your machine would hang terminally within a very short time). Try killing vino-server and that should stop it doing whatever it is doing to make Xorg occupy as much CPU time as ksoftirqd will let it. If it doesn't, then kill Xorg as well. jch
_______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
