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https://github.com/ClusterCockpit/cc-metric-collector.git
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41 lines
1.6 KiB
Plaintext
41 lines
1.6 KiB
Plaintext
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SHORT Main memory bandwidth in MBytes/s seen from Home agent
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EVENTSET
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FIXC0 INSTR_RETIRED_ANY
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FIXC1 CPU_CLK_UNHALTED_CORE
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FIXC2 CPU_CLK_UNHALTED_REF
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BBOX0C0 IMC_READS_NORMAL
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BBOX0C1 BYPASS_IMC_TAKEN
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BBOX0C2 IMC_WRITES_ALL
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BBOX1C0 IMC_READS_NORMAL
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BBOX1C1 BYPASS_IMC_TAKEN
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BBOX1C2 IMC_WRITES_ALL
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METRICS
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Runtime (RDTSC) [s] time
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Runtime unhalted [s] FIXC1*inverseClock
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Clock [MHz] 1.E-06*(FIXC1/FIXC2)/inverseClock
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CPI FIXC1/FIXC0
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Memory read bandwidth [MBytes/s] 1.0E-06*(BBOX0C0+BBOX1C0+BBOX0C1+BBOX1C1)*64.0/time
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Memory read data volume [GBytes] 1.0E-09*(BBOX0C0+BBOX1C0+BBOX0C1+BBOX1C1)*64.0
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Memory write bandwidth [MBytes/s] 1.0E-06*(BBOX0C2+BBOX1C2)*64.0/time
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Memory write data volume [GBytes] 1.0E-09*(BBOX0C2+BBOX1C2)*64.0
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Memory bandwidth [MBytes/s] 1.0E-06*(BBOX0C0+BBOX1C0+BBOX0C1+BBOX1C1+BBOX0C2+BBOX1C2)*64.0/time
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Memory data volume [GBytes] 1.0E-09*(BBOX0C0+BBOX1C0+BBOX0C1+BBOX1C1+BBOX0C2+BBOX1C2)*64.0
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LONG
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Formulas:
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Memory read bandwidth [MBytes/s] = 1.0E-06*(SUM(IMC_READS_NORMAL)+SUM(BYPASS_IMC_TAKEN))*64.0/time
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Memory read data volume [GBytes] = 1.0E-09*(SUM(IMC_READS_NORMAL)+SUM(BYPASS_IMC_TAKEN))*64.0
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Memory write bandwidth [MBytes/s] = 1.0E-06*(SUM(IMC_WRITES_ALL))*64.0/time
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Memory write data volume [GBytes] = 1.0E-09*(SUM(IMC_WRITES_ALL))*64.0
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Memory bandwidth [MBytes/s] = 1.0E-06*(SUM(IMC_READS_NORMAL) + SUM(BYPASS_IMC_TAKEN) + SUM(IMC_WRITES_ALL))*64.0/time
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Memory data volume [GBytes] = 1.0E-09*(SUM(IMC_READS_NORMAL) + SUM(BYPASS_IMC_TAKEN) + SUM(IMC_WRITES_ALL))*64.0
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-
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This group derives the same metrics as the MEM group but use the events of the
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Home Agent, a central unit that is responsible for the protocol side of memory
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interactions.
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