cc-metric-collector/collectors/likwid/groups/interlagos/MEM.txt
2021-03-25 14:47:10 +01:00

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SHORT Main memory bandwidth in MBytes/s
EVENTSET
UPMC0 UNC_DRAM_ACCESSES_DCT0_ALL
UPMC1 UNC_DRAM_ACCESSES_DCT1_ALL
METRICS
Runtime (RDTSC) [s] time
Memory bandwidth [MBytes/s] 1.0E-06*(UPMC0+UPMC1)*64.0/time
Memory data volume [GBytes] 1.0E-09*(UPMC0+UPMC1)*64.0
LONG
Formulas:
Memory bandwidth [MBytes/s] = 1.0E-06*(DRAM_ACCESSES_DCTO_ALL+DRAM_ACCESSES_DCT1_ALL)*64/time
Memory data volume [GBytes] = 1.0E-09*(DRAM_ACCESSES_DCTO_ALL+DRAM_ACCESSES_DCT1_ALL)*64
-
Profiling group to measure memory bandwidth drawn by all cores of a socket.
Note: As this group measures the accesses from all cores it only makes sense
to measure with one core per socket, similar as with the Intel Nehalem Uncore events.