cc-metric-collector/collectors/likwid/groups/arm8_tx2/SPEC.txt
2021-03-25 14:47:10 +01:00

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SHORT Information about speculative execution
EVENTSET
PMC0 INST_SPEC
PMC1 LD_SPEC
PMC2 ST_SPEC
PMC3 DP_SPEC
PMC4 VFP_SPEC
PMC5 ASE_SPEC
METRICS
Runtime (RDTSC) [s] time
Operations spec. executed PMC0
Load ops spec. executed PMC1
Store ops spec. executed PMC2
Integer data ops spec. executed PMC3
Scalar FP ops spec. executed PMC4
Vector FP ops spec. executed PMC5
Other ops spec. executed (PMC0-PMC1-PMC2-PMC3-PMC4-PMC5)
Load ops spec. ratio PMC1/PMC0
Store ops spec. ratio PMC2/PMC0
Integer data ops spec. ratio PMC3/PMC0
Scalar FP ops spec. ratio PMC4/PMC0
Vector FP ops spec. ratio PMC5/PMC0
Other ops spec. ratio (PMC0-PMC1-PMC2-PMC3-PMC4-PMC5)/PMC0
LONG
Formulas:
Load ops spec. ratio = LD_SPEC / INST_SPEC
Store ops spec. ratio = ST_SPEC / INST_SPEC
Integer data ops spec. ratio = DP_SPEC / INST_SPEC
Scalar FP ops spec. ratio = VFP_SPEC / INST_SPEC
Vector FP ops spec. ratio = ASE_SPEC / INST_SPEC
Other ops spec. ratio = (INST_SPEC-LD_SPEC-ST_SPEC-DP_SPEC-VFP_SPEC-ASE_SPEC) / INST_SPEC
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This group gives information about the speculative execution of micro-ops.
It is currently unclear why Other ops spec. executed and ratio is negative
in some cases. Although the documentation contains an OP_RETIRED, there is no
equivalent OP_SPEC which could be a better reference in this group instead of
INST_SPEC.