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https://github.com/ClusterCockpit/cc-metric-collector.git
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48 lines
2.1 KiB
Plaintext
48 lines
2.1 KiB
Plaintext
SHORT Memory bandwidth in MBytes/s
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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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MBOX0C0 MC_CAS_READS
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MBOX0C1 MC_CAS_WRITES
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MBOX1C0 MC_CAS_READS
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MBOX1C1 MC_CAS_WRITES
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MBOX2C0 MC_CAS_READS
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MBOX2C1 MC_CAS_WRITES
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MBOX4C0 MC_CAS_READS
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MBOX4C1 MC_CAS_WRITES
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MBOX5C0 MC_CAS_READS
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MBOX5C1 MC_CAS_WRITES
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MBOX6C0 MC_CAS_READS
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MBOX6C1 MC_CAS_WRITES
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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*(MBOX0C0+MBOX1C0+MBOX2C0+MBOX4C0+MBOX5C0+MBOX6C0)*64.0/time
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Memory read data volume [GBytes] 1.0E-09*(MBOX0C0+MBOX1C0+MBOX2C0+MBOX4C0+MBOX5C0+MBOX6C0)*64.0
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Memory writeback bandwidth [MBytes/s] 1.0E-06*(MBOX0C1+MBOX1C1+MBOX2C1+MBOX4C1+MBOX5C1+MBOX6C1)*64.0/time
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Memory writeback data volume [GBytes] 1.0E-09*(MBOX0C1+MBOX1C1+MBOX2C1+MBOX4C1+MBOX5C1+MBOX6C1)*64.0
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Memory bandwidth [MBytes/s] 1.0E-06*(MBOX0C0+MBOX1C0+MBOX2C0+MBOX4C0+MBOX5C0+MBOX6C0+MBOX0C1+MBOX1C1+MBOX2C1+MBOX4C1+MBOX5C1+MBOX6C1)*64.0/time
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Memory data volume [GBytes] 1.0E-09*(MBOX0C0+MBOX1C0+MBOX2C0+MBOX4C0+MBOX5C0+MBOX6C0+MBOX0C1+MBOX1C1+MBOX2C1+MBOX4C1+MBOX5C1+MBOX6C1)*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(MC_CAS_READS))*64/time
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Memory read data volume [GBytes] = 1.0E-09*(sum(MC_CAS_READS))*64
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Memory writeback bandwidth [MBytes/s] = 1.0E-06*(sum(MC_CAS_WRITES))*64/time
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Memory writeback data volume [GBytes] = 1.0E-09*(sum(MC_CAS_WRITES))*64
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Memory bandwidth [MBytes/s] = 1.0E-06*(sum(MC_CAS_READS)+sum(MC_CAS_WRITES))*64/time
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Memory data volume [GBytes] = 1.0E-09*(sum(MC_CAS_READS)+sum(MC_CAS_WRITES))*64
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-
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Profiling group to measure L2 to MEM load cache bandwidth. The bandwidth is computed by the
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number of cache line allocated in the L2 cache. Since there is no possibility to retrieve
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the evicted cache lines, this group measures only the load cache bandwidth. The
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writeback metrics count only modified cache lines that are written back to go to
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exclusive state
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The group also output totally load and writeback data volume transferred between memory and L2.
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