发明申请
- 专利标题: Methods and apparatus to implement parallel transactions
- 专利标题(中): 实现并行交易的方法和设备
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申请号: US11699802申请日: 2007-01-30
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公开(公告)号: US20070239943A1公开(公告)日: 2007-10-11
- 发明人: David Dice , Nir N. Shavit , Ori Shalev , Mark Moir
- 申请人: David Dice , Nir N. Shavit , Ori Shalev , Mark Moir
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
The present disclosure describes a unique way for each of multiple processes to operate in parallel and use the same shared data without causing corruption to the shared data. For example, during a commit phase, a corresponding transaction can attempt to increment a globally accessible version information variable and store a current value of the globally accessible version information variable for updating version information associated with modified data regardless of whether an associated attempt by the corresponding transaction to modify the globally accessible version information variable was successful. As an alternative mode, a corresponding transaction can merely read and store a current value of the globally accessible version information variable without attempting to update the globally accessible version information variable before such use. In yet another application, a parallel processing environment implements a combination of both aforementioned modes depending on a self-abort rate of the transaction.
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