Invention Grant
- Patent Title: Compressing portions of a buffer cache using an LRU queue
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Application No.: US14502244Application Date: 2014-09-30
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Publication No.: US09727479B1Publication Date: 2017-08-08
- Inventor: Philippe Armangau , Vasily Olegovich Zalunin , Rustem Rafikov , Christopher A. Seibel
- Applicant: EMC Corporation
- Applicant Address: US MA Hopkinton
- Assignee: EMC IP Holding Company LLC
- Current Assignee: EMC IP Holding Company LLC
- Current Assignee Address: US MA Hopkinton
- Agency: BainwoodHuang
- Main IPC: G06F12/08
- IPC: G06F12/08 ; G06F12/0891 ; G06F12/0866

Abstract:
Techniques are described for compressing cache pages from an LRU (Least-Recently-Used) queue so that data takes longer to age off and be removed from the cache. This increases the likelihood that data will be available within the cache upon subsequent re-access, reducing the need for costly disk accesses due to cache misses.
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