公开(公告)号：JP2000148518A

公开(公告)日：2000-05-30

申请号：JP14120899

申请日：1999-05-21

Applicant: IBM

Inventor： FRANKE HUBERTUS ,  PATTNAIK PRATAP CHANDRA ,  KRIEGER ORRAN YAKOV ,  BARANSKY YURIJ ANDRIJ

IPC: G06F12/08 ,  G06F9/46 ,  G06F9/50

Abstract: PROBLEM TO BE SOLVED: To permit improved scheduling based upon cache affinity by deciding the affinity of a thread by using the cache fit print of the thread and scheduling the execution of the thread for execution according to the affinity. SOLUTION: A cache monitor unit CMU 20 expands standard cache architecture. The CMU 20 monitors the right of proprietary rights and usage of the cache so as to measure the cache fit print of a calculation unit (process, thread). When current threads executing an instruction stream on a CPU 22 accesses the contents of a memory, the CPU 22 issues their requests to the cache 21. The affinity of threads regarding respective processors is decided by using the measured cache fit print. The execution of the threads by the processors is scheduled according to the affinity.