Patent · US Active

Prefetching of discontiguous storage locations as part of transactional execution

US9348643B2 · kind B2 · utility

9Cited by

22References

13Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Fadi Y. Busaba · Poughkeepsie, US
Dan F. Greiner · San Jose, US
Michael K. Gschwind · Chappaqua, US
Maged M. Michael · Yorktown Heights, US
Valentina Salapura · Chappaqua, US
Eric M. Schwarz · Gardiner, US
Timothy J. Slegel · Staatsburg, US

Key dates

Filing date	Jun 30, 2014
Grant date	May 24, 2016
Priority date	—
Expiry date	Sep 6, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/6028
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Transactional execution of a transaction beginning instruction initiates prefetching, by a CPU, of discontiguous storage locations specified by a list. The list includes entries specifying addresses and may also include corresponding metadata. The list may be specified by levels of indirection. Fetching of corresponding discontiguous cache lines is initiated while in TX mode. Additional instructions in the transaction may be executed and use the prefetched cache lines.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.