HP Caliper User Guide Release 5.5 (5900-2351, August 2012)

The metrics are:
• Read Rate
Number of memory read requests per second.
• Live Reads
This is the average number of outstanding reads per cycle. This gives some idea about the
memory request density.
• Ave Latency - Cycle
Average system memory read latency in CPU cycles.
• Ave Latency - Nsec
Average system memory read latency in nanoseconds.
• Pftch
This is total number of cacheable instruction prefetch memory requests per 1000 retired
instructions, including nops and predicated off instructions.
• Dmnd
This is total number of cacheable instruction demand fetch memory requests per 1000 retired
instructions, including nops and predicated off instructions.
• Load
This is total number of cacheable loads per 1000 retired instructions, including nops and
predicated off instructions.
• Store
This is total number of cacheable RFO (Read For Ownership) stores per 1000 retired
instructions, including nops and predicated off instructions.
• Hint
This is total number of cacheable RFO (Read For Ownership) hints per 1000 retired instructions,
including nops and predicated off instructions.
• WB - 128
This is total number of cacheable 128-byte write backs per 1000 retired instructions, including
nops and predicated off instructions.
• WB - 64
This is total number of cacheable 64-byte write backs per 1000 retired instructions, including
nops and predicated off instructions.
• Instr
This is total number of uncacheable instruction (prefetch and demand) fetches per 1000 retired
instructions, including nops and predicated off instructions.
• Load
This is total number of uncacheable loads per 1000 retired instructions, including nops and
predicated off instructions.
• Store
This is total number of uncacheable stores (write backs) per 1000 retired instructions, including
nops and predicated off instructions.
queues Event Set
Available only on Itanium 2 and dual-core Itanium 2 systems.
254 Event Set Descriptions for CPU Metrics