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https://github.com/ClusterCockpit/cc-metric-collector.git
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30 lines
1.0 KiB
Plaintext
30 lines
1.0 KiB
Plaintext
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SHORT L3 cache bandwidth in MBytes/s
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EVENTSET
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PMC0 L2_FILL_WB_FILL
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PMC1 L2_FILL_WB_WB
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PMC2 CPU_CLOCKS_UNHALTED
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METRICS
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Runtime (RDTSC) [s] time
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L3 load bandwidth [MBytes/s] 1.0E-06*PMC0*64.0/time
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L3 load data volume [GBytes] 1.0E-09*PMC0*64.0
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L3 evict bandwidth [MBytes/s] 1.0E-06*PMC1*64.0/time
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L3 evict data volume [GBytes] 1.0E-09*PMC1*64.0
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L3 bandwidth [MBytes/s] 1.0E-06*(PMC0+PMC1)*64.0/time
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L3 data volume [GBytes] 1.0E-09*(PMC0+PMC1)*64.0
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LONG
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Formulas:
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L3 load bandwidth [MBytes/s] = 1.0E-06*L2_FILL_WB_FILL*64.0/time
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L3 load data volume [GBytes] = 1.0E-09*L2_FILL_WB_FILL*64.0
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L3 evict bandwidth [MBytes/s] = 1.0E-06*L2_FILL_WB_WB*64.0/time
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L3 evict data volume [GBytes] = 1.0E-09*L2_FILL_WB_WB*64.0
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L3 bandwidth [MBytes/s] = 1.0E-06*(L2_FILL_WB_FILL+L2_FILL_WB_WB)*64/time
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L3 data volume [GBytes] = 1.0E-09*(L2_FILL_WB_FILL+L2_FILL_WB_WB)*64
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-
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Profiling group to measure L3 cache bandwidth. The bandwidth is
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computed by the number of cache line loaded from L3 to L2 and the
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number of modified cache lines evicted from the L2.
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