cc-metric-collector/collectors/likwid/groups/phi/MEM5.txt

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2021-03-25 14:47:10 +01:00
SHORT L2 snoop hits
EVENTSET
PMC0 SNP_HITM_L2
METRICS
Runtime (RDTSC) [s] time
Snoop bandwidth [MBytes/s] 1.0E-06*PMC0*64.0/time
Snoop data volume [GBytes] 1.0E-09*PMC0*64.0
LONG
Formulas:
Snoop bandwidth [MBytes/s] = 1.0E-06*SNP_HITM_L2*64.0/time
Snoop data volume [GBytes] = 1.0E-09*SNP_HITM_L2*64.0
-
Snoop traffic caused by HITM requests. HITM requests are L2 requests that
are served by another core's L2 cache but the remote cache line is in modified
state.