Intel Xeon E5-2600 Series - Page 118

Intel® Xeon® Processor E5-2600 Product Family Uncore Performance Monitoring
118 Reference Number: 327043-001
TxR_CYCLES_NE
• Title: Egress Cycles Not Empty
• Category: EGRESS Events
• Event Code: 0x23
• Max. Inc/Cyc: 1, Register Restrictions: 0
• Definition: Counts the number of cycles when the R2PCIe Egress is not empty. This tracks one of
the three rings that are used by the R2PCIe agent. This can be used in conjunction with the R2PCIe
Egress Occupancy Accumulator event in order to calculate average queue occupancy. Only a single
Egress queue can be tracked at any given time. It is not possible to filter based on direction or
polarity.
TxR_INSERTS
• Title: Egress Allocations
• Category: EGRESS Events
• Event Code: 0x24
• Max. Inc/Cyc: 1, Register Restrictions: 0
• Definition: Counts the number of allocations into the R2PCIe Egress. This tracks one of the three
rings that are used by the R2PCIe agent. This can be used in conjunction with the R2PCIe Egress
Occupancy Accumulator event in order to calculate average queue latency. Only a single Egress
queue can be tracked at any given time. It is not possible to filter based on direction or polarity.
Table 2-116. Unit Masks for TxR_CYCLES_NE
Extension
umask
[15:8]
Description
AD bxxxxxxx1 AD:
AD Egress Queue
AK bxxxxxx1x AK:
AK Egress Queue
BL bxxxxx1xx BL:
BL Egress Queue