On Thu, 2005-02-03 at 19:59, Alan wrote: > I have a server that is experiencing high load values for some unknown > reason. > How high is high? > It is an AMD64 dual proc box (3000+, I think. Maybe faster.) with 4gigs > of ram. The drive(s) are two SATA drives that are software mirrored. > > I am running the 64 bit version of Fedora Core 2. Not certain which > kernel version. (It is maybe a month old.) > > I am not hitting swap at all. MySQL rarely even shows up on "top". The > CPU percentage used is almost non-existent. > > The load when MySQL is being queried is 0.9 or higher. (Usually 1.0 on > average.) > That is not a high load value. > The queries should not be hammering the box that much. What is actually > causing the scheduler to choke is unknown at this point. > > Any ideas how I can find the cause of the problem? > > A previous semi-related message suggested adding "elevator=deadline" to > the kernel options. I have not tried that yet. (I will tonight, but > since this is a live machine and they swiped my test machine, I have to > do this carefully.) > > Any ideas? Solutions? How are you detecting this problem? vmstat? iostat? top? -- Scot L. Harris webid@xxxxxxxxxx << WAIT >>
