[Bug libfortran/78549] Very slow formatted internal file output

[mecej4 at operamail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78549

--- Comment #6 from mecej4 at operamail dot com ---
(In reply to Jerry DeLisle from comment #5)
> 
> Can you explain what "Windows Subsystem for Linux (Ubuntu 14) on Windows-10"
> is?

Sorry if I created a bad portmanteau phrase. 

Here is a link to Microsoft's own description of WSL (Windows Subsystem for
Linux) : https://msdn.microsoft.com/en-us/commandline/wsl/about .

This beta product for Windows 10-x64 provides a Bash shell in which character
I/O, user-mode Linux applications can be run (only 64-bit a.out supported). I
found it fairly simple to install, and it worked well for the tests that I
tried. Once Bash has been installed, one can install Ubuntu-14 packages using
Apt-Get; in particular, there is a Gfortran 6.2 package that works.

While browsing the sources of LibGfortran, I found the file which seemed to be
a candidate for profiling: write_float.def, which I understand you are
currently revising.