Uncore Manual

Reference Number: 329468-002 69
Uncore Performance Monitoring
Home Agent (HA) Performance Monitoring
• Definition: Counts the number of cycles that the AK ring is being used at this ring stop. This
includes when packets are passing by and when packets are being sunk, but does not include
when packets are being sent from the ring stop.
• NOTE: On a 2 column implementation (e.g. 10C) CW_EVEN is actually
CW_VR0_EVEN+CW_VR1_EVEN (similarly for CCW/ODD). In any cycle, a ring stop can see up to
one packet moving in the CW direction and one packet moving in the CCW direction.
RING_BL_USED
• Title: HA BL Ring in Use
• Category: RING Events
• Event Code: 0x40
• Max. Inc/Cyc:. 1, Register Restrictions: 0-3
• Definition: Counts the number of cycles that the BL ring is being used at this ring stop. This
includes when packets are passing by and when packets are being sunk, but does not include
when packets are being sent from the ring stop.
• NOTE: On a 2 column implementation (e.g. 10C) CW_EVEN is actually
CW_VR0_EVEN+CW_VR1_EVEN (similarly for CCW/ODD). In any cycle, a ring stop can see up to
one packet moving in the CW direction and one packet moving in the CCW direction.
Table 2-58. Unit Masks for RING_AK_USED
Extension
umask
[15:8]
Description
CW_VR0_EVEN bxxxxxxx1 Clockwise and Even on VRing 0
Filters for the Clockwise and Even ring polarity on Virtual Ring 0.
CW_VR0_ODD bxxxxxx1x Clockwise and Odd on VRing 0
Filters for the Clockwise and Odd ring polarity on Virtual Ring 0.
CCW_VR0_EVEN bxxxxx1xx Counterclockwise and Even on VRing 0
Filters for the Counterclockwise and Even ring polarity on Virtual
Ring 0.
CCW_VR0_ODD bxxxx1xxx Counterclockwise and Odd on VRing 0
Filters for the Counterclockwise and Odd ring polarity on Virtual
Ring 0.
CW_VR1_EVEN bxxx1xxxx Clockwise and Even on VRing 1
Filters for the Clockwise and Even ring polarity on Virtual Ring 1.
CW_VR1_ODD bxx1xxxxx Clockwise and Odd on VRing 1
Filters for the Clockwise and Odd ring polarity on Virtual Ring 1.
CW b00110011 Clockwise
CCW_VR1_EVEN bx1xxxxxx Counterclockwise and Even on VRing 1
Filters for the Counterclockwise and Even ring polarity on Virtual
Ring 1.
CCW_VR1_ODD b1xxxxxxx Counterclockwise and Odd on VRing 1
Filters for the Counterclockwise and Odd ring polarity on Virtual
Ring 1.
CCW b11001100 Counterclockwise
Table 2-59. Unit Masks for RING_BL_USED
Extension
umask
[15:8]
Description
CW_VR0_EVEN bxxxxxxx1 Clockwise and Even on VRing 0
Filters for the Clockwise and Even ring polarity on Virtual Ring 0.
CW_VR0_ODD bxxxxxx1x Clockwise and Odd on VRing 0
Filters for the Clockwise and Odd ring polarity on Virtual Ring 0.
CCW_VR0_EVEN bxxxxx1xx Counterclockwise and Even on VRing 0
Filters for the Counterclockwise and Even ring polarity on Virtual
Ring 0.