The -stat compiler option provides a listing of statistics for each phase of the compilation. The statistics are displayed at the terminal by default or can be redirected to a file. The following figure is a sample terminal display from a UNIX system.
Figure 1-2 Sample Output from the -stat Option (UNIX)
PHASE USER SYSTEM CPU REAL 13:43:26 Parser Pass 1 0.05 0.02 0.07 0 13:43:26 Declare 0.00 0.00 0.00 0 13:43:26 Parser Pass 2 0.08 0.03 0.11 0 13:43:26 Allocator 0.01 0.00 0.01 0 13:43:27 Code Generator 0.71 0.05 0.76 1 13:43:27 Total 0.85 0.10 0.95 1 13:43:27 Total source lines: 38 Lines per minute (CPU): 2,400 Lines per minute (real): 2,280 Text size: 2,574 bytes Data size: 914 bytes Bss Size: 0 bytes
The following names and describes each of the columns displayed in the printout.
| Column | Description |
|---|---|
| PHASE | Defines the various phases of the compilation. Each phase and its corresponding statistics displays upon completion. |
| USER | Indicates the CPU time spent on this phase of compilation, excluding CPU time spent by the operating system on behalf of the Compiler. |
| SYSTEM | Indicates the CPU time used by the operating system while executing the corresponding phase. |
| CPU | Indicates the CPU time used by the Compiler while executing the corresponding phase. This is simply the sum of USER and SYSTEM. |
| REAL | Indicates the number of seconds elapsed during the corresponding phase. |
| The final column | Displays the current time of day in 24-hour notation (on Intel systems only). |