Abstract: A method includes, in a processor, receiving first and second operations for periodic execution with respective specified time periods. Respective actual time periods having no common divisor are derived from the specified time periods. The first and second operations are executed periodically with the respective actual time periods.

Abstract: Methods, apparatuses and computer software products implement embodiments of the present invention that include storing, to a module memory in each of a plurality of modules having multiple sub-modules, a record containing record entries corresponding respectively to the sub-modules. Upon detecting changes in respective states of the sub-modules of a given module, the corresponding record entries are set in response to the detected changes in the states of the sub-modules of the given module. A cache containing cache entries corresponding respectively to the sub-modules in the plurality of the modules is stored to a controller memory, and the record in each of the modules is polled. Upon detecting that a given record entry of the given module has been set, from the current state information with respect to the given sub-module is requested and received, and a corresponding cache entry is updated in the cache with the current state information.

Abstract: Methods, apparatuses and computer software products implement embodiments of the present invention that include storing, to a module memory in each of a plurality of modules having multiple sub-modules, a record containing record entries corresponding respectively to the sub-modules. Upon detecting changes in respective states of the sub-modules of a given module, the corresponding record entries are set in response to the detected changes in the states of the sub-modules of the given module. A cache containing cache entries corresponding respectively to the sub-modules in the plurality of the modules is stored to a controller memory, and the record in each of the modules is polled. Upon detecting that a given record entry of the given module has been set, from the current state information with respect to the given sub-module is requested and received, and a corresponding cache entry is updated in the cache with the current state information.

Abstract: A method includes, in a processor, receiving first and second operations for periodic execution with respective specified time periods. Respective actual time periods having no common divisor are derived from the specified time periods. The first and second operations are executed periodically with the respective actual time periods.