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:
Aug. 11, 2015
Filed:
May. 10, 2012
Krzysztof Uchronski, Cambridge, GB;
Martin O'brien, Mountain View, CA (US);
Jacob Gorm Hansen, Ryomgaard, DK;
Kiran Bondalapati, Los Altos, CA (US);
Ian Pratt, Cambridge, GB;
Gaurav Banga, Cupertino, CA (US);
Vikram Kapoor, Cupertino, CA (US);
Krzysztof Uchronski, Cambridge, GB;
Martin O'Brien, Mountain View, CA (US);
Jacob Gorm Hansen, Ryomgaard, DK;
Kiran Bondalapati, Los Altos, CA (US);
Ian Pratt, Cambridge, GB;
Gaurav Banga, Cupertino, CA (US);
Vikram Kapoor, Cupertino, CA (US);
Bromium, Inc., Cupertino, CA (US);
Abstract
Mitigating eviction of the memory pages of virtualized machines. Upon detecting that a request to perform an I/O operation has been issued against a block stored a disk, a determination is made as to whether a pristine copy of the contents of the block is stored in memory. If a pristine copy of the contents of the block is stored in memory, then the request may be performed by updating mapping data that maps a page of memory to a location in memory at which the pristine copy is stored. In this way, the request is performed without performing the I/O operation against the block stored on disk. Various approaches for resharing memory, including memory of a template virtual machine, are discussed.