What causes random disk access slow down

2009-10-27 Thread Jin Guojun
A 6-7 years old Xeon dual 2.4MHz CPU machine runs FreeBSD 6.4-Release suddenly becomes slow on some tasks requiring disk access. Typical things like ls, objdump etc. Be more specific, a couple of minutes objdump became a several hours job. A several seconds ls -RC became a 15-minute task (see

Re: What causes random disk access slow down

2009-10-27 Thread phantomcircuit
How full are the disks? Jin Guojun wrote: A 6-7 years old Xeon dual 2.4MHz CPU machine runs FreeBSD 6.4-Release suddenly becomes slow on some tasks requiring disk access. Typical things like ls, objdump etc. Be more specific, a couple of minutes objdump became a several hours job. A several