Invention Grant
- Patent Title: Cost based analysis of direct I/O access
- Patent Title (中): 直接I / O访问的基于成本的分析
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Application No.: US11584255Application Date: 2006-10-20
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Publication No.: US08224813B2Publication Date: 2012-07-17
- Inventor: Sanjay Kaluskar , Varun Malhotra , Tirthankar Lahiri , Juan Loaiza , Sumanta Chatterjee , Dmitry Potapov , Margaret Susairaj , Hakan Jakobsson
- Applicant: Sanjay Kaluskar , Varun Malhotra , Tirthankar Lahiri , Juan Loaiza , Sumanta Chatterjee , Dmitry Potapov , Margaret Susairaj , Hakan Jakobsson
- Applicant Address: US CA Redwood Shores
- Assignee: Oracle International Corporation
- Current Assignee: Oracle International Corporation
- Current Assignee Address: US CA Redwood Shores
- Agency: Vista IP Law Group, LLP
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F17/30 ; G06F12/00 ; G06F13/00 ; G06F13/28
Abstract:
A method, system, and computer program product for cost based analysis for data access in a database management system. In one approach, the method, system, and computer program product identifies data to access. A first cost for direct I/O storage access and a second cost for cache access are then determined for accessing the data. A comparison between the first cost and the second cost is then performed. Finally, a first portion of identified data is accessed based at least in part upon the comparison.
Public/Granted literature
- US20080098169A1 Cost based analysis of direct I/O access Public/Granted day:2008-04-24
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