Uncore Manual

Reference Number: 329468-002 137
Uncore Performance Monitoring
Intel® QPI Link Layer Performance Monitoring
Events Derived from Packet Filters
Following is a selection of common events that may be derived by using the Intel
®
QPI packet
matching facility. The Match/Mask columns correspond to the Match0/Mask0 registers. For the cases
where additional fields need to be specified, they will be noted.
OPC 8:5 0x0 Opcode
See Section 2.11, “Packet Matching Reference” for a listing of
opcodes that may be filtered per message class.
VNW 4:3 0x0 Virtual Network
--- 2:0 0x0 Reserved; Must write to 0 else behavior is undefined.
Table 2-137. Message Events Derived from the Match/Mask filters
Field
Match
[12:0]
Mask
[12:0]
Description
DRS.AnyDataC 0x1C00 0x1F80 Any Data Response message containing a cache line in
response to a core request. The AnyDataC messages are
only sent to a C-Box. The metric DRS.AnyResp -
DRS.AnyDataC will compute the number of DRS writeback
and non snoop write messages.
DRS.DataC_M 0x1C00
&&
Match1
[19:16]
0x8
0x1FE0
&&
Mask1
[19:16]
0xF
Data Response message of a cache line in M state that is
response to a core request. The DRS.DataC_M messages
are only sent to Intel® QPI.
DRS.DataC_E 0x1C00
&&
Match1
[19:16]
0x4
0x1FE0
&&
Mask1
[19:16]
0xF
Data Response message of a cache line in E state that is
response to a core request. The DRS.DataC_E messages
are only sent to Intel® QPI.
DRS.DataC_F 0x1C00
&&
Match1
[19:16]
0x1
0x1FE0
&&
Mask1
[19:16]
0xF
Data Response message of a cache line in F state that is
response to a core request. The DRS.DataC_F messages
are only sent to Intel® QPI.
DRS.DataC_E_Cmp 0x1C40
&&
Match1
[19:16]
0x4
0x1FE0
&&
Mask1
[19:16]
0xF
Complete Data Response message of a cache line in E
state that is response to a core request. The DRS.DataC_E
messages are only sent to Intel® QPI.
DRS.DataC_F_Cmp 0x1C40
&&
Match1
[19:16]
0x1
0x1FE0
&&
Mask1
[19:16]
0xF
Complete Data Response message of a cache line in F
state that is response to a core request. The DRS.DataC_F
messages are only sent to Intel® QPI.
DRS.DataC_E_FrcAc
kCnflt
0x1C20
&&
Match1
[19:16]
0x4
0x1FE0
&&
Mask1
[19:16]
0xF
Force Acknowledge Data Response message of a cache
line in E state that is response to a core request. The
DRS.DataC_E messages are only sent to Intel® QPI.
Table 2-136. Q_Py_PCI_PMON_PKT_MASK0 Registers (Sheet 2 of 2)
Field Bits
HW
Reset
Val
Description