发明名称 |
METHOD AND APPARATUS FOR SPECULATIVE EXECUTION OF UNCONTENDED LOCK INSTRUCTIONS |
摘要 |
A method and apparatus for executing lock instructions speculatively in an out-of-order processor are disclosed. In one embodiment, a prediction is made whether a given lock instruction will actually be contended. If not, then the lock instruction may be treated as having a normal load micro-operation which may be speculatively executed. Monitor logic may look for indications that the lock instruction is actually contended. If no such indications are found, the speculative load micro-operation and other micro-operations corresponding to the lock instruction may retire. However, if such indications are in fact found, the lock instruction may be restarted, and the prediction mechanism may be updated. |
申请公布号 |
WO2006012103(A3) |
申请公布日期 |
2006.04.13 |
申请号 |
WO2005US21838 |
申请日期 |
2005.06.17 |
申请人 |
INTEL CORPORATION;SAHA, BRATIN;MERTEN, MATTHEW, C.;HAMMARLUND, PER |
发明人 |
SAHA, BRATIN;MERTEN, MATTHEW, C.;HAMMARLUND, PER |
分类号 |
G06F9/38 |
主分类号 |
G06F9/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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