Uncore Manual

Uncore Performance Monitoring
R3QPI Performance Monitoring
182 Reference Number: 329468-002
RING_BL_USED
• Title: R3 BL Ring in Use
• Category: RING Events
• Event Code: 0x09
• Max. Inc/Cyc:. 1, Register Restrictions: 0-2
• 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.
RING_IV_USED
• Title: R2 IV Ring in Use
• Category: RING Events
• Event Code: 0x0a
• Max. Inc/Cyc:. 1, Register Restrictions: 0-2
• Definition: Counts the number of cycles that the IV ring is being used at this ring stop. This
includes when packets are passing by and when packets are being sent, but does not include when
packets are being sunk into the ring stop. The IV ring is unidirectional. Whether UP or DN is used is
dependent on the system programming. Therefore, one should generally set both the UP and DN
bits for a given polarity (or both) at a given time.
CW b00110011 Clockwise
CCW b11001100 Counterclockwise
Table 2-203. 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.
CCW_VR0_ODD bxxxx1xxx Counterclockwise and Odd on VRing 0
Filters for the Counterclockwise and Odd ring polarity on Virtual
Ring 0.
CW b00110011 Clockwise
CCW b11001100 Counterclockwise
Table 2-204. Unit Masks for RING_IV_USED
Extension
umask
[15:8]
Description
CW b00110011 Clockwise
Filters for Clockwise polarity
Table 2-202. Unit Masks for RING_AK_USED
Extension
umask
[15:8]
Description