The _PGOPTI_Prof_Dump_All() function dumps the profile information collected by the instrumented application. The prototype of the function call is listed below.
Syntax |
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void _PGOPTI_Prof_Dump_All(void); |
An older version of this function, _PGOPTI_Prof_Dump(), which will also dump profile information is still available; the older function operates much like _PGOPTI_Prof_Dump_All(), except on Linux when used in connection with shared libraries (.so) and _exit() to terminate a program. When _PGOPTI_Prof_Dump_All() is called before_exit() to terminate the program, the new function insures that a .dyn file is created for all shared libraries needing to create a .dyn file. Use _PGOPTI_Prof_Dump_All() on Linux to insure portability and correct functionality.
The profile information is generated in a .dyn file (generated in phase 2 of PGO).
Insert a single call to this function in the body of the function which terminates the user application. Normally, _PGOPTI_Prof_Dump_All() should be called just once. It is also possible to use this function in conjunction with _PGOPTI_Prof_Reset() function to generate multiple .dyn files (presumably from multiple sets of input data).
Example |
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#include <pgouser.h> void process_data(int foo) {} int get_input_data() { return 1; } int main(void) { // Selectively collect profile information for the portion // of the application involved in processing input data. int input_data = get_input_data(); while (input_data) { _PGOPTI_Prof_Reset(); process_data(input_data); _PGOPTI_Prof_Dump_All(); input_data = get_input_data(); } return 0; } |