Linux on System z - z/VM 6.3 Resource Overcommitment
See: IBM Knowledge Center http://ibm.com/support/knowledgecenter/linuxonibm/liaag/l0reoc00_2014.htm developerWorks http://www.ibm.com/developerworks/linux/linux390/perf/tuning_vm.html#reoc This white paper provides information about the performance of virtualized environments when operated with constrained resources. A z/VM® based system installation runs a set of virtual systems of different types of workloads under Linux for System z®. Another aspect analyzed is the efficiency of the z/VM paging subsystem when using EDEV-SCSI based paging devices, as opposed to ECKD™ based paging devices. It highlights the behavior of the new memory and CPU management introduced with z/VM 6.3. Dorothea Matthaeus Linux on System z Information Development IBM Deutschland Research and Development GmbH
