HP Caliper 5.3 User Guide (5900-1558, February 2011)

• 128 Byte - Miss
This is the fraction of 128-byte data snoops that miss, out of all data snoops (64-byte and
128-byte).
• 128 Byte - Hit
This is the fraction of 128-byte data snoops that hit a cache line, out of all data snoops (64-byte
and 128-byte).
• 128 Byte - Hitm
This is the fraction of 128-byte data snoops that hit a modified cache line, out of all data
snoops (64-byte and 128-byte).
• 128 Byte - Impwb
This is the fraction of 128-byte data snoops that are due to implicit write backs, out of all data
snoops (64-byte and 128-byte).
• 64 Byte - Miss
This is the fraction of 64-byte data snoops that miss, out of all data snoops (64-byte and
128-byte).
• 64 Byte - Hit
This is the fraction of 64-byte data snoops that hit a cache line, out of all data snoops (64-byte
and 128-byte).
• 64 Byte - Hitm
This is the fraction of 64-byte data snoops that hit a modified cache line, out of all data snoops
(64-byte and 128-byte).
• 64 Byte - Impwb
This is the fraction of 64-byte data snoops that are due to implicit write backs, out of all data
snoops (64-byte and 128-byte).
• Inv Snoop - Hitm
This is the fraction of invalid snoops that hit a modified cache line, out of all invalid snoops
(64-byte and 128-byte).
• Inv Snoop - Impwb
This is the fraction of invalid snoops that are due to implicit write backs, out of all invalid
snoops (64-byte and 128-byte).
• Inv Snoop - 64B
This is the fraction of invalid snoops that are 64-byte snoops, out of all invalid snoops (64-byte
and 128-byte).
stall Event Set
The stall event set provides information on primary CPU performance limiters by breaking the
CPI into seven components.
If you use this event set, the default is to make the measurements irrespective of CPU operating
state (that is, user, system, or interrupt states). By default, the idle state is not included in the
measurement. You can use command-line options to limit the scope of the measurement. Specifically,
you can:
• Limit measurement to a specific privilege level: -m event_set[:all|user|kernel]
• Include idle: --exclude-idle False
stall Event Set 245