mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-12-28 08:09:06 +01:00
34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
|
SHORT L2 cache bandwidth in MBytes/s
|
||
|
|
|
||
|
|
EVENTSET
|
||
|
|
PMC0 PM_LD_REF_L1
|
||
|
|
PMC1 PM_ST_CMPL
|
||
|
|
PMC2 PM_LSU_L1_PREF
|
||
|
|
PMC4 PM_RUN_INST_CMPL
|
||
|
|
PMC5 PM_RUN_CYC
|
||
|
|
|
||
|
|
|
||
|
|
METRICS
|
||
|
|
Runtime (RDTSC) [s] time
|
||
|
|
CPI PMC5/PMC4
|
||
|
|
L2D load bandwidth [MBytes/s] 1.0E-06*((PMC0+PMC2)/2)*64.0/time
|
||
|
|
L2D load data volume [GBytes] 1.0E-09*((PMC0+PMC2)/2)*64.0
|
||
|
|
L2D store bandwidth [MBytes/s] 1.0E-06*((PMC1/2))*64.0/time
|
||
|
|
L2D store data volume [GBytes] 1.0E-09*((PMC1/2))*64.0
|
||
|
|
L2 bandwidth [MBytes/s] 1.0E-06*((PMC1+PMC0+PMC2)/2)*64.0/time
|
||
|
|
L2 data volume [GBytes] 1.0E-09*((PMC1+PMC0+PMC2)/2)*64.0
|
||
|
|
|
||
|
|
LONG
|
||
|
|
Formulas:
|
||
|
|
CPI = PM_RUN_CYC/PM_RUN_INST_CMPL
|
||
|
|
L2D load bandwidth [MBytes/s] = 1.0E-06*(PM_DATA_FROM_L2/2)*128.0/time
|
||
|
|
L2D load data volume [GBytes] = 1.0E-09*(PM_DATA_FROM_L2/2)*128.0
|
||
|
|
L2D store bandwidth [MBytes/s] = 1.0E-06*(PM_ST_MISS_L1)*128.0/time
|
||
|
|
L2D store data volume [GBytes] = 1.0E-09*(PM_ST_MISS_L1)*128.0
|
||
|
|
L2 bandwidth [MBytes/s] = 1.0E-06*(PM_DATA_FROM_L2/2 + PM_ST_MISS_L1)*128.0/time
|
||
|
|
L2 data volume [GBytes] = 1.0E-09*(PM_DATA_FROM_L2/2 + PM_ST_MISS_L1)*128.0
|
||
|
|
-
|
||
|
|
Profiling group to measure L2 cache bandwidth. The bandwidth is computed by the
|
||
|
|
number of cacheline loaded from the L2 to the L1 data cache. There is currently no
|
||
|
|
event to get the evicted data volume.
|