Flat profile:

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total           
 time   seconds   seconds    calls   s/call   s/call  name    
 80.61     34.07    34.07 10010000     0.00     0.00  bubblesort
 18.16     41.74     7.67 10000000     0.00     0.00  find_rank_student
  0.92     42.13     0.39        1     0.39    42.13  sort_students
  0.33     42.27     0.14     1000     0.00     0.00  generate_array
  0.14     42.33     0.06        1     0.06     0.06  generate_ranks
  0.00     42.33     0.00        2     0.00     0.00  free_array
  0.00     42.33     0.00        1     0.00     0.14  generate_grades

			Call graph


granularity: each sample hit covers 2 byte(s) for 0.02% of 42.33 seconds

index % time    self  children    called     name
                                                 <spontaneous>
[1]    100.0    0.00   42.33                 main [1]
                0.39   41.74       1/1           sort_students [2]
                0.00    0.14       1/1           generate_grades [6]
                0.06    0.00       1/1           generate_ranks [7]
                0.00    0.00       2/2           free_array [8]
-----------------------------------------------
                0.39   41.74       1/1           main [1]
[2]     99.5    0.39   41.74       1         sort_students [2]
                7.67   34.03 10000000/10000000     find_rank_student [3]
                0.03    0.00   10000/10010000     bubblesort [4]
-----------------------------------------------
                7.67   34.03 10000000/10000000     sort_students [2]
[3]     98.5    7.67   34.03 10000000         find_rank_student [3]
               34.03    0.00 10000000/10010000     bubblesort [4]
-----------------------------------------------
                0.03    0.00   10000/10010000     sort_students [2]
               34.03    0.00 10000000/10010000     find_rank_student [3]
[4]     80.5   34.07    0.00 10010000         bubblesort [4]
-----------------------------------------------
                0.14    0.00    1000/1000        generate_grades [6]
[5]      0.3    0.14    0.00    1000         generate_array [5]
-----------------------------------------------
                0.00    0.14       1/1           main [1]
[6]      0.3    0.00    0.14       1         generate_grades [6]
                0.14    0.00    1000/1000        generate_array [5]
-----------------------------------------------
                0.06    0.00       1/1           main [1]
[7]      0.1    0.06    0.00       1         generate_ranks [7]
-----------------------------------------------
                0.00    0.00       2/2           main [1]
[8]      0.0    0.00    0.00       2         free_array [8]
-----------------------------------------------

Index by function name

   [4] bubblesort              [5] generate_array          [2] sort_students
   [3] find_rank_student       [6] generate_grades
   [8] free_array              [7] generate_ranks