PROF(2)                                                   PROF(2)

     NAME
          prof, _profdump - profile functions

     SYNOPSIS
          void prof(void (*fn)(void*), void *arg, int entries, int
          what)

          void _profdump(void)

     DESCRIPTION
          Prof profiles a single function and writes the profiling
          data to a file on return as specified in prof(1). The func-
          tion _profdump may be called to dump profile information
          before function exit, or when profiling whole program invo-
          cations, at any point before exit.

     SOURCE
     SEE ALSO
          prof(1).

     BUGS
          When mixing calls to prof and _profdump and whole-program
          profiling, it is easy to overwrite the fixed output file.

     Page 1                       Plan 9             (printed 4/19/26)