Uncore Manual

Uncore Performance Monitoring
R3QPI Performance Monitoring
178 Reference Number: 329468-002
CLOCKTICKS
• Title: Number of uclks in domain
• Category: UCLK Events
• Event Code: 0x01
• Max. Inc/Cyc:. 0, Register Restrictions: 0-2
• Definition: Counts the number of uclks in the QPI uclk domain. This could be slightly different than
the count in the Ubox because of enable/freeze delays. However, because the QPI Agent is close to
the Ubox, they generally should not diverge by more than a handful of cycles.
C_HI_AD_CREDITS_EMPTY
• Title: CBox AD Credits Empty
• Category: EGRESS Credit Events
• Event Code: 0x2c
• Max. Inc/Cyc:. 1, Register Restrictions: 0-1
• Definition: No credits available to send to Cbox on the AD Ring (covers higher CBoxes)
C_LO_AD_CREDITS_EMPTY
• Title: CBox AD Credits Empty
• Category: EGRESS Credit Events
• Event Code: 0x2b
• Max. Inc/Cyc:. 1, Register Restrictions: 0-1
• Definition: No credits available to send to Cbox on the AD Ring (covers lower CBoxes)
Table 2-194. Unit Masks for C_HI_AD_CREDITS_EMPTY
Extension
umask
[15:8]
Description
CBO8 bxxxxxxx1 Cbox 8
CBO9 bxxxxxx1x Cbox 9
CBO10 bxxxxx1xx Cbox 10
CBO11 bxxxx1xxx Cbox 11
CBO12 bxxx1xxxx Cbox 12
CBO13 bxx1xxxxx Cbox 13
CBO14 bx1xxxxxx Cbox 14&16
Table 2-195. Unit Masks for C_LO_AD_CREDITS_EMPTY
Extension
umask
[15:8]
Description
CBO0 bxxxxxxx1 Cbox 0
CBO1 bxxxxxx1x Cbox 1
CBO2 bxxxxx1xx Cbox 2
CBO3 bxxxx1xxx Cbox 3
CBO4 bxxx1xxxx Cbox 4
CBO5 bxx1xxxxx Cbox 5
CBO6 bx1xxxxxx Cbox 6
CBO7 b1xxxxxxx Cbox 7