%of Cycles lost due to register dependency stalls (excludes FR/FR stalls)

%of Cycles lost due to GR/GR dependency stalls

%of Cycles lost due to FPU (floating-point unit) stalls

%Core cycles due to this thread

Percentage of cycles lost due to register dependency stalls. It exclude FR/FR dependency stalls.

Percentage of cycles lost due to GR/GR dependency stalls.

Percentage of cycles lost due to floating-point unit stalls.

This indicates the percentage of available processor cycles that the measured process consumed. The other processor cycles were consumed by other process(es) running in the core's other hyperthread or were lost to HyperThreading overhead.

traps Measurement Metrics

See Table 34 (page 230).

In this table, “program object” refers to any of the following:

•Thread

•Load module

•Function

•Source statement

•Instruction

Table 34 Information in traps Measurement Reports

Column

Description

% Total Trap Samples

Percent of the total trap samples attributable to a given program object.

 

 

Cumulat % of Total

Running sum of the percent of total trap samples accounted for by the given program object

 

and those listed above it.

 

 

Trap Samples

Total number of trap samples attributed to the given program object.

 

 

Samples Per Trap

Total number of these traps attributed to the given program object. “Other” is the total number

 

of all the remaining traps attributed to the given program object.

 

 

Kernel Thread

Kernel Thread ID suffixed with the the name of the routine that the thread will execute once it

Identification Number

is created.

 

 

Load Module

Shared library or the main executable.

 

 

Function

Routine from your application.

 

 

File

Source file associated with a function.

 

 

Line

The column contains one of these:

Slot

• A source-code line number for rows showing statements

Col,Offset

• An instruction slot number for rows showing instructions not on a bundle boundary

 

 

• A source-code column number followed by an offset from the beginning address of a function

 

for rows showing instructions on a bundle boundary

 

Column and line numbers are preceded by “~” when they are approximate due to optimization.

 

 

>Statement

The column contains either a source statement preceded by “>” or a disassembled instruction.

Instruction

Statements that are out of order due to optimization are preceded by “*>”.

 

 

230 Descriptions of Measurement Reports