mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-11-14 05:57:25 +01:00
36 lines
1.4 KiB
Plaintext
36 lines
1.4 KiB
Plaintext
|
SHORT Main memory bandwidth in MBytes/s
|
||
|
|
|
||
|
|
EVENTSET
|
||
|
|
PMC0 NORTHBRIDGE_READ_RESPONSE_ALL
|
||
|
|
PMC1 OCTWORDS_WRITE_TRANSFERS
|
||
|
|
PMC2 DRAM_ACCESSES_DCTO_ALL
|
||
|
|
PMC3 DRAM_ACCESSES_DCT1_ALL
|
||
|
|
|
||
|
|
METRICS
|
||
|
|
Runtime (RDTSC) [s] time
|
||
|
|
Memory read bandwidth [MBytes/s] 1.0E-06*PMC0*64.0/time
|
||
|
|
Memory read data volume [GBytes] 1.0E-09*PMC0*64.0
|
||
|
|
Memory write bandwidth [MBytes/s] 1.0E-06*PMC1*8.0/time
|
||
|
|
Memory write data volume [GBytes] 1.0E-09*PMC1*8.0
|
||
|
|
Memory bandwidth [MBytes/s] 1.0E-06*(PMC2+PMC3)*64.0/time
|
||
|
|
Memory data volume [GBytes] 1.0E-09*(PMC2+PMC3)*64.0
|
||
|
|
|
||
|
|
LONG
|
||
|
|
Formulas:
|
||
|
|
Memory read bandwidth [MBytes/s] = 1.0E-06*NORTHBRIDGE_READ_RESPONSE_ALL*64/time
|
||
|
|
Memory read data volume [GBytes] = 1.0E-09*NORTHBRIDGE_READ_RESPONSE_ALL*64
|
||
|
|
Memory write bandwidth [MBytes/s] = 1.0E-06*OCTWORDS_WRITE_TRANSFERS*8/time
|
||
|
|
Memory write data volume [GBytes] = 1.0E-09*OCTWORDS_WRITE_TRANSFERS*8
|
||
|
|
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.
|
||
|
|
The memory read bandwidth contains all data from DRAM, L3, or another cache,
|
||
|
|
including another core on the same node. The event OCTWORDS_WRITE_TRANSFERS counts
|
||
|
|
16 Byte transfers, not 64 Byte.
|
||
|
|
|
||
|
|
|
||
|
|
|