[Bug libfortran/127893] [14/15/16/17 regression] Severe libgfortran parallel-I/O performance regression on macOS since r14-6425

[jvdelisle at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127893

Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |jvdelisle at gcc dot 
gnu.org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2026-11-01

--- Comment #11 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Created attachment 66066
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=66066&action=edit
A test script to stress test

Please run a stress test using this attached script if you can. On my machine
it takes about 12 minutes to complete using the defaults.

In the meantime, I will submit the final patch to the lists for review and
approval.

Thanks ahead of time.