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kafkafka 2010-03-11
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弱弱地问一句，怎样在VTUNE里查看L2_LINES_IN.SELF.ANY 事件啊？我也想看L2 chche miss
intel_zhenyuwang 2009-01-21
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L2 Cache Miss Rate
Equation: L2_LINES_IN.SELF.ANY / INST_RETIRED.ANY
Category: L2 Cache Ratios; Advanced Performance Tuning Ratios; Ratios for Tuning Assistant Advice;
Definition: A high L2 cache miss rate indicates that the running workload has a data set larger than the L2 cache. Some of the data might be evicted without being used. Unless all the required data is brought ahead of time by the hardware prefetcher or software prefetching instructions, bringing data from memory has a significant impact on the performance.
Equation: L2_LINES_IN.SELF.ANY / INST_RETIRED.ANY
Category: L2 Cache Ratios; Advanced Performance Tuning Ratios; Ratios for Tuning Assistant Advice;
Definition: A high L2 cache miss rate indicates that the running workload has a data set larger than the L2 cache. Some of the data might be evicted without being used. Unless all the required data is brought ahead of time by the hardware prefetcher or software prefetching instructions, bringing data from memory has a significant impact on the performance.
wwangzhihang100 2009-01-20
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为什么l2 cache miss rate 这样计算？这样算出来的不是l2的cache命中率么？
dydlynudt 2008-11-26
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谢谢intel牛人
intel_zhenyuwang 2008-11-26
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Please use VTune event ratio named "L2 Cache Miss Rate", that is, L2_LINES_IN.SELF.ANY / INST_RETIRED.ANY
