Coupling Thin Interrupts and Coupling Facility Performance in Shared Processor Environments
zEC12; zEnterprise EC12; zSeries; z/OS
Abstract: How the various sharing protocols, including the new Coupling Thin Interrupts introduced with CF Level 19 supported on zEC12 and zBC12, perform will be examined in this paper. By comparing the performance of these shared CF processor options it will be evident that the use of coupling thin interrupts in the CF provides significant improvement in CF shared processor environments. This improvement will be evident in environments that are already using shared CF processors and will expand the number of environments in which shared CF processors are viable.