Uncore Manual

Reference Number: 329468-002 161
Uncore Performance Monitoring
Intel® QPI Link Layer Performance Monitoring
TxR_BL_DRS_CREDIT_ACQUIRED
• Title: R3QPI Egress Credit Occupancy - DRS
• Category: R3QPI_EGRESS_CREDITS Events
• Event Code: 0x2a
• Extra Select Bit: Y
• Max. Inc/Cyc:. 1, Register Restrictions: 0-3
• Definition: Number of credits into the R3 (for transactions across the BGF) acquired each cycle.
DRS message class to BL Egress.
TxR_BL_DRS_CREDIT_OCCUPANCY
• Title: R3QPI Egress Credit Occupancy - BL DRS
• Category: R3QPI_EGRESS_CREDITS Events
• Event Code: 0x1f
• Extra Select Bit: Y
• Max. Inc/Cyc:. 8, Register Restrictions: 0-3
• Definition: Occupancy event that tracks the number of credits into the R3 (for transactions
across the BGF) available in each cycle. DRS message class to BL Egress.
TxR_BL_NCB_CREDIT_ACQUIRED
• Title: R3QPI Egress Credit Occupancy - NCB
• Category: R3QPI_EGRESS_CREDITS Events
• Event Code: 0x2b
• Extra Select Bit: Y
• Max. Inc/Cyc:. 1, Register Restrictions: 0-3
• Definition: Number of credits into the R3 (for transactions across the BGF) acquired each cycle.
NCB message class to BL Egress.
Table 2-166. Unit Masks for TxR_BL_DRS_CREDIT_ACQUIRED
Extension
umask
[15:8]
Description
VN0 b00000001 for VN0
VN1 b00000010 for VN1
VN_SHR b00000100 for Shared VN
Table 2-167. Unit Masks for TxR_BL_DRS_CREDIT_OCCUPANCY
Extension
umask
[15:8]
Description
VN0 b00000001 for VN0
VN1 b00000010 for VN1
VN_SHR b00000100 for Shared VN
Table 2-168. Unit Masks for TxR_BL_NCB_CREDIT_ACQUIRED
Extension
umask
[15:8]
Description
VN0 b00000001 for VN0
VN1 b00000010 for VN1