The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2000
Filed:
Mar. 22, 1999
David C Liddell, Gosforth, GB;
Emrys J Williams, Bow Brickhill, GB;
Sun Microsystems, Inc., Palo Alto, CA (US);
Abstract
A system and method for tracking dirty memory which, in one embodiment, comprises a first memory corresponding to a first processor, a second memory corresponding to a second processor and a third memory coupled to the first memory, wherein the third memory stores bits corresponding to the pages of the first memory, and wherein each bit is set to 'dirty' when the first processor writes to the corresponding page of the first memory and is set to 'clean' when the corresponding page of the first memory is copied to a corresponding page of the second memory. The system and method can be used in a computer having multiple cpusets to assist in cpuset re-integration by copying the contents of one cpuset's memory to another cpuset's memory while the operating system of the computer continues to run.