On Thu, 2003-10-09 at 23:52, Little, Chris wrote: > output of ind q when the guest "freezes" (note, the guest is s99lxd02): > > ind q > > S99LXD02 Q0 IO 00353503/00353486
So it got quickdsp and is now waiting for I/O (but that could be a long term read for a CTC device). From MAINT, a #CP IND I/O might show you when there is a real device involved. But the 350,000 pages means 1.4 GB which is not trivial when you have a few more folks in. When the virtual machine is defined even bigger than this, it may be that Linux is doing I/O to the pages that z/VM has paged out. Does your performance tool show you that the guest is getting page faults? Rob
