Uncore Manual

Reference Number: 329468-002 185
Uncore Performance Monitoring
R3QPI Performance Monitoring
TxR_CYCLES_NE
• Title: Egress Cycles Not Empty
• Category: EGRESS Events
• Event Code: 0x23
• Max. Inc/Cyc:. 1, Register Restrictions: 0-1
• Definition: Counts the number of cycles when the QPI Egress is not empty. This tracks one of the
three rings that are used by the QPI agent. This can be used in conjunction with the QPI 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_NACK_CCW
• Title: Egress NACK
• Category: EGRESS Events
• Event Code: 0x28
• Max. Inc/Cyc:. 1, Register Restrictions: 0-1
• Definition:
TxR_NACK_CW
• Title: Egress NACK
• Category: EGRESS Events
• Event Code: 0x26
• Max. Inc/Cyc:. 1, Register Restrictions: 0-1
• Definition:
VN0_CREDITS_REJECT
• Title: VN0 Credit Acquisition Failed on DRS
• Category: LINK_VN0_CREDITS Events
• Event Code: 0x37
• Max. Inc/Cyc:. 1, Register Restrictions: 0-1
Table 2-208. Unit Masks for TxR_NACK_CCW
Extension
umask
[15:8]
Description
AD bxxxxxxx1 AK CCW
BL CounterClockwise Egress Queue
AK bxxxxxx1x BL CW
AD Clockwise Egress Queue
BL bxxxxx1xx BL CCW
AD CounterClockwise Egress Queue
Table 2-209. Unit Masks for TxR_NACK_CW
Extension
umask
[15:8]
Description
AD bxxxxxxx1 AD CW
AD Clockwise Egress Queue
AK bxxxxxx1x AD CCW
AD CounterClockwise Egress Queue
BL bxxxxx1xx AK CW
BL Clockwise Egress Queue