Intel Xeon E5-2600 Series - R2 Pcie Performance Monitoring Events; An Overview; R2 Pcie Box Events Ordered by Code; R2 Pcie Box Common Metrics (Derived Events)

Intel® Xeon® Processor E5-2600 Product Family Uncore Performance Monitoring
114 Reference Number: 327043-001
2.8.4 R2PCIe Performance Monitoring Events
2.8.4.1 An Overview
R2PCIe provides events to track information related to all the traffic passing through it’s boundaries.
• IIO credit tracking - credits rejected, acquired and used all broken down by message Class.
•Ring Stop Events
To track Ingress/Egress Traffic and Ring Utilization (broken down by direction and ring type)
statistics.
2.8.5 R2PCIe Box Events Ordered By Code
The following table summarizes the directly measured R2PCIe Box events.
2.8.6 R2PCIe Box Common Metrics (Derived Events)
The following table summarizes metrics commonly calculated from R2PCIe Box events.
Table 2-108. Performance Monitor Events for R2PCIe
Symbol Name
Event
Code
Ctrs
Max
Inc/
Cyc
Description
CLOCKTICKS 0x1 0-3 1 Number of uclks in domain
RING_AD_USED 0x07 0-3 1 R2 AD Ring in Use
RING_AK_USED 0x08 0-3 1 R2 AK Ring in Use
RING_BL_USED 0x09 0-3 1 R2 BL Ring in Use
RING_IV_USED 0x0A 0-3 1 R2 IV Ring in Use
RxR_CYCLES_NE 0x10 0-1 1 Ingress Cycles Not Empty
RxR_AK_BOUNCES 0x12 0 1 AK Ingress Bounced
TxR_CYCLES_NE 0x23 0 1 Egress Cycles Not Empty
TxR_INSERTS 0x24 0 1 Egress Allocations
TxR_CYCLES_FULL 0x25 0 1 Egress Cycles Full
Table 2-109. Metrics Derived from R2PCIe Events (Sheet 1 of 2)
Symbol Name:
Definition
Equation
CYC_USED_DNEVEN:
Cycles Used in the Down direction, Even
polarity
RING_BL_USED.CCW_EVEN / SAMPLE_INTERVAL
CYC_USED_DNODD:
Cycles Used in the Down direction, Odd
polarity
RING_BL_USED.CCW_ODD / SAMPLE_INTERVAL
CYC_USED_UPEVEN:
Cycles Used in the Up direction, Even
polarity
RING_BL_USED.CW_EVEN / SAMPLE_INTERVAL
CYC_USED_UPODD:
Cycles Used in the Up direction, Odd
polarity
RING_BL_USED.CW_ODD / SAMPLE_INTERVAL