Intel® Xeon® Processor E5-2600 Product Family Uncore Performance Monitoring
52
Reference Number: 327043-001
DIRECT2CORE_COUNT
• Title:
Direct2Core Messages Sent
• Category:
DIRECT2CORE Events
• Event Code:
0x11
• Max. Inc/Cyc:
1,
Register Restrictions:
0-3
• Definition:
Number of Direct2Core messages sent
DIRECT2CORE_CYCLES_DISABLED
• Title:
Cycles when Direct2Core was Disabled
• Category:
DIRECT2CORE Events
• Event Code:
0x12
• Max. Inc/Cyc:
1,
Register Restrictions:
0-3
• Definition:
Number of cycles in which Direct2Core was disabled
DIRECT2CORE_TXN_OVERRIDE
• Title:
Number of Reads that had Direct2Core Overridden
• Category:
DIRECT2CORE Events
• Event Code:
0x13
• Max. Inc/Cyc:
1,
Register Restrictions:
0-3
• Definition:
Number of Reads where Direct2Core overridden
DIRECTORY_LOOKUP
• Title:
Directory Lookups
• Category:
DIRECTORY Events
• Event Code:
0x0C
• Max. Inc/Cyc:
1,
Register Restrictions:
0-3
• Definition:
Counts the number of transactions that looked up the directory. Can be filtered by
requests that had to snoop and those that did not have to.
• NOTE:
Only valid for parts that implement the Directory
Table 2-43. Unit Masks for CONFLICT_CYCLES
Extension
umask
[15:8]
Description
NO_CONFLICT
bxxxxxxx1
No Conflict:
Counts the number of cycles that we are NOT handling conflicts.
CONFLICT
bxxxxxx1x
Conflict Detected:
Counts the number of cycles that we are handling conflicts.
Table 2-44. Unit Masks for DIRECTORY_LOOKUP
Extension
umask
[15:8]
Description
SNP
bxxxxxxx1
Snoop Needed:
Filters for transactions that had to send one or more snoops because
the directory bit was set.
NO_SNP
bxxxxxx1x
Snoop Not Needed:
Filters for transactions that did not have to send any snoops because
the directory bit was clear.
