Re: [CentOS] bizarre system slowness

2011-04-14 Thread Ljubomir Ljubojevic
I was wondering if you have normal internet access on that machine. I found out that somehow systems I set up just freeze and are horribly slow when there is no internet access. Terminnal would take few minutes to open, and if I try several terminals all would open at once once system is "awaken

Re: [CentOS] bizarre system slowness

2011-04-14 Thread Michael Simpson
On 13 April 2011 21:06, Florin Andrei wrote: > Running v5 64bit on a Dell 1950. > /var/log/messages was full of "ntpd[7313]: frequency error -1707 PPM > exceeds tolerance 500 PPM" messages. There was a lot of messages about > "the system limit for the maximum number of semaphore sets has been > ex

Re: [CentOS] bizarre system slowness

2011-04-13 Thread Devin Reade
Maybe check /proc/interrupts ? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] bizarre system slowness

2011-04-13 Thread Florin Andrei
On 04/13/2011 01:16 PM, Brunner, Brian T. wrote: > > Any RAID setups go into self-repair mode? No RAID here, just LVM - not too different from the default redhat-style setup of the system drives (except the additional SAN stuff and DB). Anyway, if the drives are the cause, then riddle me this:

Re: [CentOS] bizarre system slowness

2011-04-13 Thread Florin Andrei
On 04/13/2011 01:55 PM, Benjamin Franz wrote: > > 1) Are you untarring from *and* to the SAN volume or is the source on > the local volume? Source on SAN, destination on SAN. Still slow. -- Florin Andrei http://florin.myip.org/ ___ CentOS mailing list

Re: [CentOS] bizarre system slowness

2011-04-13 Thread Benjamin Franz
On 04/13/2011 01:34 PM, Cal Webster wrote: > >> tar -zxf with a large file on this machine takes 1.5 minutes, but takes >> only 10 seconds on any of its siblings. CPU usage seems high while >> untarring, with lots of user and sys cycles being used, but almost no >> wait cycles. It doesn't matter wh

Re: [CentOS] bizarre system slowness

2011-04-13 Thread Cal Webster
On Wed, 2011-04-13 at 13:06 -0700, Florin Andrei wrote: > Running v5 64bit on a Dell 1950. > > A cluster of 3 DB machines, identical hardware. One of them suddenly > became slower 2 weeks ago. > > tar -zxf with a large file on this machine takes 1.5 minutes, but takes > only 10 seconds on any o

Re: [CentOS] bizarre system slowness

2011-04-13 Thread Brunner, Brian T.
centos-boun...@centos.org wrote: > Running v5 64bit on a Dell 1950. > > A cluster of 3 DB machines, identical hardware. One of them suddenly > became slower 2 weeks ago. > /var/log/messages was full of "ntpd[7313]: frequency error -1707 PPM > exceeds tolerance 500 PPM" messages. Sounds lik

[CentOS] bizarre system slowness

2011-04-13 Thread Florin Andrei
Running v5 64bit on a Dell 1950. A cluster of 3 DB machines, identical hardware. One of them suddenly became slower 2 weeks ago. tar -zxf with a large file on this machine takes 1.5 minutes, but takes only 10 seconds on any of its siblings. CPU usage seems high while untarring, with lots of us