Intel Xeon E5-2600 Series - IMC Box Performance Monitor Event List

Intel® Xeon® Processor E5-2600 Product Family Uncore Performance Monitoring
64 Reference Number: 327043-001
2.5.8 iMC Box Performance Monitor Event List
The section enumerates the performance monitoring events for the iMC Box.
ACT_COUNT
• Title: DRAM Activate Count
• Category: ACT Events
• Event Code: 0x01
• Max. Inc/Cyc: 1, Register Restrictions: 0-3
Table 2-65. Metrics Derived from iMC Events
Symbol Name:
Definition
Equation
MEM_BW_READS:
Memory bandwidth consumed by reads.
Expressed in bytes.
(CAS_COUNT.RD * 64)
MEM_BW_TOTAL:
Total memory bandwidth. Expressed in
bytes.
MEM_BW_READS + MEM_BW_WRITES
MEM_BW_WRITES:
Memory bandwidth consumed by writes
Expressed in bytes.
(CAS_COUNT.WR * 64)
PCT_CYCLES_CRITICAL_THROTTLE:
The percentage of cycles all DRAM ranks in
critical thermal throttling
POWER_CRITICAL_THROTTLE_CYCLES /
MC_Chy_PCI_PMON_CTR_FIXED
PCT_CYCLES_DLOFF:
The percentage of cycles all DRAM ranks in
CKE slow (DLOFF) mode
POWER_CHANNEL_DLOFF / MC_Chy_PCI_PMON_CTR_FIXED
PCT_CYCLES_DRAM_RANKx_IN_CKE:
The percentage of cycles DRAM rank (x)
spent in CKE ON mode.
POWER_CKE_CYCLES.RANKx / MC_Chy_PCI_PMON_CTR_FIXED
PCT_CYCLES_DRAM_RANKx_IN_THR:
The percentage of cycles DRAM rank (x)
spent in thermal throttling.
POWER_THROTTLE_CYCLES.RANKx /
MC_Chy_PCI_PMON_CTR_FIXED
PCT_CYCLES_PPD:
The percentage of cycles all DRAM ranks in
PPD mode
POWER_CHANNEL_PPD / MC_Chy_PCI_PMON_CTR_FIXED
PCT_CYCLES_SELF_REFRESH:
The percentage of cycles Memory is in self
refresh power mode
POWER_SELF_REFRESH / MC_Chy_PCI_PMON_CTR_FIXED
PCT_RD_REQUESTS:
Percentage of read requests from total
requests.
RPQ_INSERTS / (RPQ_INSERTS + WPQ_INSERTS)
PCT_REQUESTS_PAGE_EMPTY:
Percentage of memory requests that
resulted in Page Empty
(ACT_COUNT - PRE_COUNT.PAGE_MISS)/ (CAS_COUNT.RD +
CAS_COUNT.WR)
PCT_REQUESTS_PAGE_HIT:
Percentage of memory requests that
resulted in Page Hits
1 - (PCT_REQUESTS_PAGE_EMPTY +
PCT_REQUESTS_PAGE_MISS)
PCT_REQUESTS_PAGE_MISS:
Percentage of memory requests that
resulted in Page Misses
PRE_COUNT.PAGE_MISS / (CAS_COUNT.RD + CAS_COUNT.WR)
PCT_WR_REQUESTS:
Percentage of write requests from total
requests.
WPQ_INSERTS / (RPQ_INSERTS + WPQ_INSERTS)