Invention Grant
- Patent Title: Secondary cache for write accumulation and coalescing
- Patent Title (中): 二级缓存用于写入累积和合并
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Application No.: US13430613Application Date: 2012-03-26
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Publication No.: US08549225B2Publication Date: 2013-10-01
- Inventor: Stephen LaRoux Blinick , Cheng-Chung Song , Lokesh Mohan Gupta , Yu-Cheng Hsu
- Applicant: Stephen LaRoux Blinick , Cheng-Chung Song , Lokesh Mohan Gupta , Yu-Cheng Hsu
- Applicant Address: US NY Armonk
- Assignee: Internatioal Business Machines Corporation
- Current Assignee: Internatioal Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Nelson and Nelson
- Agent Daniel P. Nelson; Alexis V. Nelson
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
A method for efficiently using a large secondary cache is disclosed herein. In certain embodiments, such a method may include accumulating, in a secondary cache, a plurality of data tracks. These data tracks may include modified data and/or unmodified data. The method may determine if a subset of the plurality of data tracks makes up a full stride. In the event the subset makes up a full stride, the method may destage the subset from the secondary cache. By destaging full strides, the method reduces the number of disk operations that are required to destage data from the secondary cache. A corresponding computer program product and apparatus are also disclosed herein.
Public/Granted literature
- US20120191904A1 SECONDARY CACHE FOR WRITE ACCUMULATION AND COALESCING Public/Granted day:2012-07-26
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