L2D_REFERENCES.ALL

%of Cycles lost due to GR/load dependency stalls (lower is better)

%of Cycles lost due to GR/GR dependency stalls (lower is better)

%of Cycles lost due to FR/load and FR/FR dependency stalls (lower is better)

L1 data cache miss percentage

Percent of data references accessing L1 data cache

L2 data cache miss percentage

L1 data cache misses per 1000 instructions retired

L2 data cache misses per 1000 instructions retired

Instructions retired per L1 data cache access

Instructions retired per L2 data cache access

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.

Percentage of cycles lost due GR/load dependency stalls.

Percentage of cycles lost due GR/GR dependency stalls.

Percentage of cycles lost due to FR/load and FR/FR dependency stalls

Percentage of L1 data cache reads that are misses. Percentage of data references that access the L1 data cache.

Percentage of L2 data cache reads that are misses.

Number of L1 data cache misses per 1000 instruction retired.

Number of L2 data cache misses per 1000 instruction retired.

Number of instructions retired per L1 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

Column

Description

% Total Dcache

Total cache miss latency cycles, expressed as a percent of the total cycles.

Latency Cycles

For example, in Example 5, 84.29 percent of the total cycles were expended on data cache

 

 

misses.

 

 

Sampled Dcache

Total number of sampled data cache misses attributed to the given program object.

Misses

 

 

 

Dcache Latency

Number of cycles expended on data cache misses summed across samples for the given program

Cycles

object.

 

 

Avg. Dcache

Average number of cycles expended on data cache misses across samples for the given program

Laten. Cycles

object.

 

 

dcache Measurement Report Description 189