[Bug libfortran/31501] libgfortran internal unit I/O performance issues

[jvdelisle at gcc dot gnu dot org]

------- Comment #6 from jvdelisle at gcc dot gnu dot org  2007-04-22 21:18 -------
Created an attachment (id=13426)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13426&action=view)
Modified patch for further improvement

This modified patch, gets the time for the test case on my system from about 12
seconds down to about 7.6.

before$ time ./a.out

real    0m11.162s
user    0m10.845s
sys     0m0.306s

after$ time ./a.out
real    0m7.680s
user    0m7.666s
sys     0m0.002s

We probably want to make is_array_io a macro so we can retain code readability.
 The big culprit here is now push_char in list_read.c


-- 

jvdelisle at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #13425|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31501