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https://github.com/ClusterCockpit/cc-metric-collector.git
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30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
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SHORT Memory bandwidth in MBytes/s for local and remote memory
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EVENTSET
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PMC1 PM_DATA_ALL_FROM_LMEM
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PMC3 PM_DATA_ALL_FROM_DMEM
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PMC4 PM_RUN_INST_CMPL
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PMC5 PM_RUN_CYC
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METRICS
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Runtime (RDTSC) [s] time
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CPI PMC5/PMC4
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Local bandwidth [MBytes/s] 1.0E-06*(PMC1)*128.0/time
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Local data volume [GBytes] 1.0E-09*(PMC1)*128.0
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Remote bandwidth [MBytes/s] 1.0E-06*(PMC3)*128.0/time
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Remote data volume [GBytes] 1.0E-09*(PMC3)*128.0
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Memory load bandwidth [MBytes/s] 1.0E-06*(PMC1+PMC3)*128.0/time
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Memory load data volume [GBytes] 1.0E-09*(PMC1+PMC3)*128.0
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LONG
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Formulas:
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CPI = PM_RUN_CYC / PM_RUN_INST_CMPL
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Memory load bandwidth [MBytes/s] = 1.0E-06* (PM_DATA_ALL_FROM_MEMORY)*128/time
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Memory load data volume [GBytes] = 1.0E-09* (PM_DATA_ALL_FROM_MEMORY)*128
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Memory evict bandwidth [MBytes/s] = 1.0E-06* (PM_MEM_CO)*128/time
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Memory evict data volume [GBytes] = 1.0E-09* (PM_MEM_CO)*128
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Memory bandwidth [MBytes/s] = 1.0E-06* (PM_DATA_ALL_FROM_MEMORY+PM_MEM_CO)*128/time
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Memory data volume [GBytes] = 1.0E-09* (PM_DATA_ALL_FROM_MEMORY+PM_MEM_CO)*128
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--
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This group measures the NUMA traffic by separating local from remote memory data transfers.
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