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30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
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SHORT Main memory bandwidth in MBytes/s
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EVENTSET
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PMC0 INST_RETIRED
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PMC1 CPU_CYCLES
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PMC2 BUS_READ_TOTAL_MEM
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PMC3 BUS_WRITE_TOTAL_MEM
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METRICS
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Runtime (RDTSC) [s] time
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CPI PMC1/PMC0
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Memory read bandwidth [MBytes/s] 1.0E-06*(PMC2)*256.0/time
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Memory read data volume [GBytes] 1.0E-09*(PMC2)*256.0
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Memory write bandwidth [MBytes/s] 1.0E-06*(PMC3)*256.0/time
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Memory write data volume [GBytes] 1.0E-09*(PMC3)*256.0
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Memory bandwidth [MBytes/s] 1.0E-06*(PMC2+PMC3)*256.0/time
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Memory data volume [GBytes] 1.0E-09*(PMC2+PMC3)*256.0
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LONG
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Formulas:
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Memory read bandwidth [MBytes/s] = 1.0E-06*(BUS_READ_TOTAL_MEM)*256.0/runtime
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Memory read data volume [GBytes] = 1.0E-09*(BUS_READ_TOTAL_MEM)*256.0
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Memory write bandwidth [MBytes/s] = 1.0E-06*(BUS_WRITE_TOTAL_MEM)*256.0/runtime
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Memory write data volume [GBytes] = 1.0E-09*(BUS_WRITE_TOTAL_MEM)*256.0
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Memory bandwidth [MBytes/s] = 1.0E-06*(BUS_READ_TOTAL_MEM+BUS_WRITE_TOTAL_MEM)*256.0/runtime
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Memory data volume [GBytes] = 1.0E-09*(BUS_READ_TOTAL_MEM+BUS_WRITE_TOTAL_MEM)*256.0
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-
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Profiling group to measure memory bandwidth. The cache line size is 256 Byte.
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