Uncore Manual

Reference Number: 329468-002 167
Uncore Performance Monitoring
R2PCIe Performance Monitoring
2.9.7 R2PCIe Box Performance Monitor Event List
The section enumerates performance monitoring events for the R2PCIe Box.
CLOCKTICKS
• Title: Number of uclks in domain
• Category: UCLK Events
• Event Code: 0x01
• Max. Inc/Cyc:. 1, Register Restrictions: 0-3
• Definition: Counts the number of uclks in the R2PCIe uclk domain. This could be slightly different
than the count in the Ubox because of enable/freeze delays. However, because the R2PCIe is close
to the Ubox, they generally should not diverge by more than a handful of cycles.
RING_AD_USED
• Title: R2 AD Ring in Use
• Category: RING Events
• Event Code: 0x07
• Max. Inc/Cyc:. 1, Register Restrictions: 0-3
• Definition: Counts the number of cycles that the AD 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.
CYC_USED_UPEVEN:
Cycles Used in the Up direction, Even
polarity
RING_BL_USED.CW_EVEN / SAMPLE_INTERVAL
CYC_USED_UPODD:
Cycles Used in the Up direction, Odd
polarity
RING_BL_USED.CW_ODD / SAMPLE_INTERVAL
RING_THRU_DNEVEN_BYTES:
Ring throughput in the Down direction,
Even polarity in Bytes
RING_BL_USED.CCW_EVEN * 32
RING_THRU_DNODD_BYTES:
Ring throughput in the Down direction, Odd
polarity in Bytes
RING_BL_USED.CCW_ODD * 32
RING_THRU_UPEVEN_BYTES:
Ring throughput in the Up direction, Even
polarity in Bytes
RING_BL_USED.CW_EVEN * 32
RING_THRU_UPODD_BYTES:
Ring throughput in the Up direction, Odd
polarity in Bytes
RING_BL_USED.CW_ODD * 32
Table 2-177. Unit Masks for RING_AD_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.
Symbol Name:
Definition
Equation