Hello, 09.07.2009 16:03, Stoyan Petkov wrote: > Hello, > > I've an FD that's making too much iowait on the backed up machine. I > tried searching info on the subject but nothing useful comes up. Here is > an excerpt from the top utility: > > top - 18:55:25 up 50 days, 1:48, 23 users, load average: 0.30, 0.32, 0.83 > Tasks: 124 total, 1 running, 123 sleeping, 0 stopped, 0 zombie > Cpu0 : 2.0%us, 1.0%sy, 0.0%ni, 96.0%id, 0.0%wa, 1.0%hi, 0.0%si, > 0.0%st > Cpu1 : 2.9%us, 1.0%sy, 0.0%ni, 96.1%id, 0.0%wa, 0.0%hi, 0.0%si, > 0.0%st
Unless I'm mistaken, there's not much iowait displayed here. Quite the contrary: 96% idle. > Mem: 1032680k total, 1016456k used, 16224k free, 18468k buffers > Swap: 2031608k total, 103044k used, 1928564k free, 645912k cached > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 22534 root 20 0 41560 2268 1232 S 6.0 0.2 0:06.32 bacula-fd > -c /etc/bacula/bacula-fd.conf > 22758 root 20 0 2364 1044 812 R 1.0 0.1 0:01.40 top > > > During normal operation the iowait will stay within 10% limits, however, > at some point it jumps to 90-98% and stays that way. I've noticed that > even with canceling the job from the director, Have you tried vmstat, and checked - perhaps using ps - which processes do need lots of CPU time when there's so much iowait occuring? Arno > the iowait on the client will stay at the 90% level. > The client is running on Fedora core 9: > > Linux 2.6.27.9-73.fc9.i686 #1 SMP Tue Dec 16 15:25:05 EST 2008 i686 > i686 i386 GNU/Linux > Fedora release 9 (Sulphur) > > I've installed the FD through yum. > > Can anyone help with more info to what might be causing the problem or > where I can find more info on iowait optimizations? > > Thank you for your help! > > Cheers, > > Stoyan > > > ------------------------------------------------------------------------------ > Enter the BlackBerry Developer Challenge > This is your chance to win up to $100,000 in prizes! For a limited time, > vendors submitting new applications to BlackBerry App World(TM) will have > the opportunity to enter the BlackBerry Developer Challenge. See full prize > details at: http://p.sf.net/sfu/Challenge > _______________________________________________ > Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users > -- Arno Lehmann IT-Service Lehmann Sandstr. 6, 49080 Osnabrück www.its-lehmann.de ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
