Uncore Manual

Reference Number: 329468-002 67
Uncore Performance Monitoring
Home Agent (HA) Performance Monitoring
OSB_EDR
• Title: OSB Early Data Return
• Category: OSB (Opportunistic Snoop Broadcast) Events
• Event Code: 0x54
• Max. Inc/Cyc:. 1, Register Restrictions: 0-3
• Definition: Counts the number of transactions that broadcast snoop due to OSB, but found clean
data in memory and was able to do early data return
REQUESTS
• Title: Read and Write Requests
• Category: TRACKER Events
• Event Code: 0x01
• Max. Inc/Cyc:. 1, Register Restrictions: 0-3
• Definition: Counts the total number of read requests made into the Home Agent. Reads include
all read opcodes (including RFO). Writes include all writes (streaming, evictions, HitM, etc).
Table 2-54. Unit Masks for OSB
Extension
umask
[15:8]
Description
READS_LOCAL bxxxxxx1x Local Reads
INVITOE_LOCAL bxxxxx1xx Local InvItoE
REMOTE bxxxx1xxx Remote
Table 2-55. Unit Masks for OSB_EDR
Extension
umask
[15:8]
Description
ALL bxxxxxxx1 All
READS_LOCAL_I bxxxxxx1x Reads to Local I
READS_REMOTE_I bxxxxx1xx Reads to Remote I
READS_LOCAL_S bxxxx1xxx Reads to Local S
READS_REMOTE_S bxxx1xxxx Reads to Remote S
Table 2-56. Unit Masks for REQUESTS
Extension
umask
[15:8]
Description
READS_LOCAL bxxxxxxx1 Local Reads
This filter includes only read requests coming from the local
socket. This is a good proxy for LLC Read Misses (including
RFOs) from the local socket.
READS_REMOTE bxxxxxx1x Remote Reads
This filter includes only read requests coming from the remote
socket. This is a good proxy for LLC Read Misses (including
RFOs) from the remote socket.
READS b00000011 Reads
Incoming read requests. This is a good proxy for LLC Read
Misses (including RFOs).
WRITES_LOCAL bxxxxx1xx Local Writes
This filter includes only writes coming from the local socket.
WRITES_REMOTE bxxxx1xxx Remote Writes
This filter includes only writes coming from remote sockets.