Vol. 3B 19-75
PERFORMANCE-MONITORING EVENTS
03H
40H
UNC_GQ_ALLOC.PEER_PROBE
_TRACKER
Counts the number of GQ peer probe tracker (snoop)
entries that are allocated in the peer probe tracker
queue that miss the L3. The GQ peer probe occupancy
count is divided by this count to obtain the average L3
peer probe miss latency.
04H
01H
UNC_GQ_DATA.FROM_QPI
Cycles Global Queue Quickpath Interface input data
port is busy importing data from the Quickpath
Interface. Each cycle the input port can transfer 8 or
16 bytes of data.
04H
02H
UNC_GQ_DATA.FROM_QMC
Cycles Global Queue Quickpath Memory Interface input
data port is busy importing data from the Quickpath
Memory Interface. Each cycle the input port can
transfer 8 or 16 bytes of data.
04H
04H
UNC_GQ_DATA.FROM_L3
Cycles GQ L3 input data port is busy importing data
from the Last Level Cache. Each cycle the input port
can transfer 32 bytes of data.
04H
08H
UNC_GQ_DATA.FROM_CORES_
02
Cycles GQ Core 0 and 2 input data port is busy
importing data from processor cores 0 and 2. Each
cycle the input port can transfer 32 bytes of data.
04H
10H
UNC_GQ_DATA.FROM_CORES_
13
Cycles GQ Core 1 and 3 input data port is busy
importing data from processor cores 1 and 3. Each
cycle the input port can transfer 32 bytes of data.
05H
01H
UNC_GQ_DATA.TO_QPI_QMC
Cycles GQ QPI and QMC output data port is busy
sending data to the Quickpath Interface or Quickpath
Memory Interface. Each cycle the output port can
transfer 32 bytes of data.
05H
02H
UNC_GQ_DATA.TO_L3
Cycles GQ L3 output data port is busy sending data to
the Last Level Cache. Each cycle the output port can
transfer 32 bytes of data.
05H
04H
UNC_GQ_DATA.TO_CORES
Cycles GQ Core output data port is busy sending data
to the Cores. Each cycle the output port can transfer
32 bytes of data.
06H
01H
UNC_SNP_RESP_TO_LOCAL_H
OME.I_STATE
Number of snoop responses to the local home that L3
does not have the referenced cache line.
06H
02H
UNC_SNP_RESP_TO_LOCAL_H
OME.S_STATE
Number of snoop responses to the local home that L3
has the referenced line cached in the S state.
06H
04H
UNC_SNP_RESP_TO_LOCAL_H
OME.FWD_S_STATE
Number of responses to code or data read snoops to
the local home that the L3 has the referenced cache
line in the E state. The L3 cache line state is changed
to the S state and the line is forwarded to the local
home in the S state.
06H
08H
UNC_SNP_RESP_TO_LOCAL_H
OME.FWD_I_STATE
Number of responses to read invalidate snoops to the
local home that the L3 has the referenced cache line in
the M state. The L3 cache line state is invalidated and
the line is forwarded to the local home in the M state.
06H
10H
UNC_SNP_RESP_TO_LOCAL_H
OME.CONFLICT
Number of conflict snoop responses sent to the local
home.
Table 19-18. Non-Architectural Performance Events In the Processor Uncore for
Intel® Core™ i7 Processor and Intel® Xeon® Processor 5500 Series (Contd.)
Event
Num.
Umask
Value
Event Mask Mnemonic
Description
Comment