Intel Xeon E5-2600 Series - Acronyms Frequently Used in Intel QPI Events; Intel QPI LL Box Events Ordered by Code

Reference Number: 327043-001 95
Intel® Xeon® Processor E5-2600 Product Family Uncore Performance Monitoring
2.7.4.2 Acronyms frequently used in Intel® QPI Events:
RxL (aka IGR) - “Receive from Link” referring to Ingress (requests from the Ring) queues.
TxL (aka EGR) - “Transmit to Link” referring to Egress (requests headed for the Ring) queues.
2.7.5 Intel® QPI LL Box Events Ordered By Code
The following table summarizes the directly measured Intel QPI LL Box events.
Table 2-94. Performance Monitor Events for Intel® QPI LL (Sheet 1 of 2)
Symbol Name
Event
Code
Extra
Select
Bit
Ctrs
Max
Inc/
Cyc
Description
TxL_FLITS_G0 0x00 0 0-3 2 Flits Transferred - Group 0
RxL_FLITS_G0 0x01 0 0-3 2 Flits Received - Group 0
TxL_INSERTS 0x04 0 0-3 1 Tx Flit Buffer Allocations
TxL_BYPASSED 0x05 0 0-3 1 Tx Flit Buffer Bypassed
TxL_CYCLES_NE 0x06 0 0-3 1 Tx Flit Buffer Cycles not Empty
TxL_OCCUPANCY 0x07 0 0-3 1 Tx Flit Buffer Occupancy
RxL_INSERTS 0x08 0 0-3 1 Rx Flit Buffer Allocations
RxL_BYPASSED 0x09 0 0-3 1 Rx Flit Buffer Bypassed
RxL_CYCLES_NE 0x0A 0 0-3 1 RxQ Cycles Not Empty
RxL_OCCUPANCY 0x0B 0 0-3 128 RxQ Occupancy - All Packets
TxL0_POWER_CYCLES 0x0C 0 0-3 1 Cycles in L0
TxL0P_POWER_CYCLES 0x0D 0 0-3 1 Cycles in L0p
RxL0_POWER_CYCLES 0x0F 0 0-3 1 Cycles in L0
RxL0P_POWER_CYCLES 0x10 0 0-3 1 Cycles in L0p
L1_POWER_CYCLES 0x12 0 0-3 1 Cycles in L1
DIRECT2CORE 0x13 0 0-3 1 Direct 2 Core Spawning
CLOCKTICKS 0x14 0 0-3 1 Number of qfclks
TxL_FLITS_G1 0x00 1 0-3 2 Flits Transferred - Group 1
TxL_FLITS_G2 0x01 1 0-3 2 Flits Transferred - Group 2
RxL_FLITS_G1 0x02 1 0-3 2 Flits Received - Group 1
RxL_FLITS_G2 0x03 1 0-3 2 Flits Received - Group 2
RxL_INSERTS_DRS 0x09 1 0-3 1 Rx Flit Buffer Allocations - DRS
RxL_INSERTS_NCB 0x0A 1 0-3 1 Rx Flit Buffer Allocations - NCB
RxL_INSERTS_NCS 0x0B 1 0-3 1 Rx Flit Buffer Allocations - NCS
RxL_INSERTS_HOM 0x0C 1 0-3 1 Rx Flit Buffer Allocations - HOM
RxL_INSERTS_SNP 0x0D 1 0-3 1 Rx Flit Buffer Allocations - SNP
RxL_INSERTS_NDR 0x0E 1 0-3 1 Rx Flit Buffer Allocations - NDR
RxL_OCCUPANCY_DRS 0x15 1 0-3 128 RxQ Occupancy - DRS
RxL_OCCUPANCY_NCB 0x16 1 0-3 128 RxQ Occupancy - NCB
RxL_OCCUPANCY_NCS 0x17 1 0-3 128 RxQ Occupancy - NCS
RxL_OCCUPANCY_HOM 0x18 1 0-3 128 RxQ Occupancy - HOM
RxL_OCCUPANCY_SNP 0x19 1 0-3 128 RxQ Occupancy - SNP
RxL_OCCUPANCY_NDR 0x1A 1 0-3 128 RxQ Occupancy - NDR