发明名称 |
PERFORMANCE IN PREDICTING BRANCHES |
摘要 |
A method, data processing system, and computer program product for processing instructions. The instructions are processed by a processor unit while using a first table in a plurality of tables to predict a set of instructions needed by the processor unit after processing of a conditional instruction. An identification is formed that a rate of success in correctly predicting the set of instructions when using the first table is less than a threshold number. A sequence of the instructions being processed by the processor unit is searched for an instruction that matches a marker in a set of markers for identifying when to use the plurality of tables. An identification that the instruction that matches the marker is formed. A second table from the plurality of tables referenced by the marker is identified. The second table is used in place of the first table. |
申请公布号 |
US2012303938(A1) |
申请公布日期 |
2012.11.29 |
申请号 |
US201113116515 |
申请日期 |
2011.05.26 |
申请人 |
CHEN WEN-TZER T.;FLEMMING DIANE G.;MARON WILLIAM A.;SRINIVAS MYSORE S.;WHITWORTH DAVID B.;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CHEN WEN-TZER T.;FLEMMING DIANE G.;MARON WILLIAM A.;SRINIVAS MYSORE S.;WHITWORTH DAVID B. |
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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