Intel Xeon E5-2600 Series - Page 38

Intel® Xeon® Processor E5-2600 Product Family Uncore Performance Monitoring
38 Reference Number: 327043-001
RING_BOUNCES
• Title: Number of LLC responses that bounced on the Ring.
• Category: RING Events
• Event Code: 0x05
• Max. Inc/Cyc: 1, Register Restrictions: 0-1
• Definition:
RING_IV_USED
• Title: BL Ring in Use
• Category: RING Events
• Event Code: 0x1E
• Max. Inc/Cyc: 1, Register Restrictions: 2-3
• 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 sunk, but does not include when
packets are being sent from the ring stop. There is only 1 IV ring in JKT. Therefore, if one wants to
monitor the "Even" ring, they should select both UP_EVEN and DN_EVEN. To monitor the "Odd"
ring, they should select both UP_ODD and DN_ODD.
RING_SRC_THRTL
• Title:
• Category: RING Events
• Event Code: 0x07
• Max. Inc/Cyc: 1, Register Restrictions: 0-1
• Definition:
Table 2-21. Unit Masks for RING_BL_USED
Extension
umask
[15:8]
Description
UP_EVEN bxxxxxxx1 Up and Even:
Filters for the Up and Even ring polarity.
UP_ODD bxxxxxx1x Up and Odd:
Filters for the Up and Odd ring polarity.
DOWN_EVEN bxxxxx1xx Down and Even:
Filters for the Down and Even ring polarity.
DOWN_ODD bxxxx1xxx Down and Odd:
Filters for the Down and Odd ring polarity.
Table 2-22. Unit Masks for RING_BOUNCES
Extension
umask
[15:8]
Description
AK_CORE bxxxxxx1x Acknowledgements to core
BL_CORE bxxxxx1xx Data Responses to core
IV_CORE bxxxx1xxx Snoops of processor's cache.
Table 2-23. Unit Masks for RING_IV_USED
Extension
umask
[15:8]
Description
ANY b00001111 Any:
Filters any polarity