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

L2D_REFERENCES.ALL Number of requests made to L2D due to a data read and/or
write accesses. Semaphore operations are counted as one
read and one write.
% of Cycles lost due to GR/load
dependency stalls (lower is better)
Percentage of cycles lost due GR/load dependency stalls.
% of Cycles lost due to GR/GR
dependency stalls (lower is better)
Percentage of cycles lost due GR/GR dependency stalls.
% of Cycles lost due to FR/load and
FR/FR dependency stalls (lower is
better)
Percentage of cycles lost due to FR/load and FR/FR
dependency stalls
L1 data cache miss percentage Percentage of L1 data cache reads that are misses.
Percent of data references accessing
L1 data cache
Percentage of data references that access the L1 data cache.
L2 data cache miss percentage Percentage of L2 data cache reads that are misses.
L1 data cache misses per 1000
instructions retired
Number of L1 data cache misses per 1000 instruction
retired.
L2 data cache misses per 1000
instructions retired
Number of L2 data cache misses per 1000 instruction
retired.
Instructions retired per L1 data cache
access
Number of instructions retired per L1 data cache access.
Instructions retired per L2 data cache
access
Number of instructions retired per L2 data cache access.
dcache Measurement Report Metrics
See Table 21 (page 189).
In this table, “program object” refers to any of the following:
• Thread
• Load module
• Function
• Source statement
• Instruction
Table 21 Information in dcache Measurement Reports
DescriptionColumn
Total cache miss latency cycles, expressed as a percent of the total cycles.
For example, in Example 5, 84.29 percent of the total cycles were expended on data cache
misses.
% Total Dcache
Latency Cycles
Total number of sampled data cache misses attributed to the given program object.Sampled Dcache
Misses
Number of cycles expended on data cache misses summed across samples for the given program
object.
Dcache Latency
Cycles
Average number of cycles expended on data cache misses across samples for the given program
object.
Avg. Dcache
Laten. Cycles
dcache Measurement Report Description 189