PREFETCHING FOR A PARENT CORE IN A MULTI-CORE CHIP

摘要

Embodiments of the invention relate to prefetching data on a chip having at least one scout core, at least one parent core, and a shared cache that is common between the at least one scout core and the at least one parent core. A prefetch code is executed by the scout core for monitoring the parent core. The prefetch code executes independently from the parent core. The scout core determines that at least one specified data pattern has occurred in the parent core based on monitoring the parent core. A prefetch request is sent from the scout core to the shared cache. The prefetch request is sent based on the at least one specified pattern being detected by the scout core. A data set indicated by the prefetch request is sent to the parent core by the shared cache.

主权项

1. A computer program product for prefetching data on a chip having at least one scout core, at least one parent core, and a shared cache that is common between the at least one scout core and the at least one parent core, the computer program product comprising:
a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising:
executing a prefetch code by the at least one scout core for monitoring the at least one parent core, the prefetch code executing independently from the at least one parent core;determining by the at least one scout core that at least one specified data pattern has occurred in the at least one parent core based on monitoring the at least one parent core;sending a prefetch request from the at least one scout core to the shared cache, the sending based on the determining; andsending, by the shared cache, a data set indicated by the prefetch request to the at least one parent core.