cc-metric-collector/collectors/likwid/groups/knl/TLB_DATA.txt

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2021-03-25 14:47:10 +01:00
SHORT L2 data TLB miss rate/ratio
EVENTSET
FIXC0 INSTR_RETIRED_ANY
FIXC1 CPU_CLK_UNHALTED_CORE
FIXC2 CPU_CLK_UNHALTED_REF
PMC0 PAGE_WALKS_DTLB_COUNT
PMC1 PAGE_WALKS_DTLB_CYCLES
METRICS
Runtime (RDTSC) [s] time
Runtime unhalted [s] FIXC1*inverseClock
Clock [MHz] 1.E-06*(FIXC1/FIXC2)/inverseClock
CPI FIXC1/FIXC0
L1 DTLB misses PMC0
L1 DTLB miss rate PMC0/FIXC0
L1 DTLB miss duration [Cyc] PMC1/PMC0
LONG
Formulas:
L1 DTLB misses = PAGE_WALKS_DTLB_COUNT
L1 DTLB miss rate = PAGE_WALKS_DTLB_COUNT / INSTR_RETIRED_ANY
L1 DTLB miss duration [Cyc] = PAGE_WALKS_DTLB_CYCLES / PAGE_WALKS_DTLB_COUNT
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The DTLB load and store miss rates gives a measure how often a TLB miss occurred
per instruction. The duration measures the time in cycles how long a walk did take.