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. 14, 2020
Filed:
Oct. 18, 2017
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Tsunehisa Doi, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A processor in a first information processing apparatus reads out data stored in a unit area of a memory used by a virtual machine and copies the data to a second information processing apparatus. The processor performs control for storing a modification history record in a buffer area allocated in association with the unit area, each time a modification is made to data in the unit area during a period after the copying. When the amount of modification history records in the buffer area exceeds a threshold, the processor recopies data stored in the unit area to the second information processing apparatus, in preparation for operation of the virtual machine on the second information processing apparatus. When the amount of modification history records does not exceed the threshold, the processor transmits the modification history records to the second information processing apparatus.