Here, gprof shows that
ct_init's 13327 calls to init_block are broken down
into one call from line 396, 3071 calls from line 384, 3730 calls
from line 385, 6525 calls from line 387, as well as 169 calls
from other subroutines.
self children called name 0.00 0.00 1/13496 name_too_long (gzip.c:1440) 0.00 0.00 1/13496 deflate (deflate.c:763) 0.00 0.00 1/13496 ct_init (trees.c:396) 0.00 0.00 2/13496 deflate (deflate.c:727) 0.00 0.00 4/13496 deflate (deflate.c:686) 0.00 0.00 5/13496 deflate (deflate.c:675) 0.00 0.00 12/13496 deflate (deflate.c:679) 0.00 0.00 16/13496 deflate (deflate.c:730) 0.00 0.00 128/13496 deflate_fast (deflate.c:654) 0.00 0.00 3071/13496 ct_init (trees.c:384) 0.00 0.00 3730/13496 ct_init (trees.c:385) 0.00 0.00 6525/13496 ct_init (trees.c:387) 0.00 0.00 13496 init_block (trees.c:408)