公开(公告)号：GB2494268A

公开(公告)日：2013-03-06

申请号：GB201215035

申请日：2012-08-23

Applicant: IBM

Inventor： HOU RUI ,  WURST MICHAEL ,  WANG YAN QI ,  SUN ZHENGYA ,  ZOU JIA ,  FAN WEI

IPC: G06F11/34 ,  G06F11/36

Abstract: Method comprising: obtaining 30 performance profiling data (from sampling logs) associated with execution of first code on first physical platform (target); constructing 32 an instruction sequence (like LOAD, MOVE, OR, STORE) and determining the association relationship between the sequence and performance defect events according to the data; providing 34 the relationship to another physical platform. Events are: Cache Miss, TLB Miss, Stall, Recycle. A second code on second platform (developer-platform) is optimised using the relationship, optimizing execution of the second code on first platform. Developed code is optimised on development platform based on the association relationship (cross-platform performance optimisation). The association relationship is based on sequence and defects occurrence times or clustering based on information entropy. The association relationship reflects hardware features of first platform, does not relate to detailed code, and does not leak code information execution on first platform or cause security risks after transmission to second platform.