[Bug libfortran/91030] Poor performance of I/O -fconvert=big-endian

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91030

--- Comment #9 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
On powerpc64le-unknown-linux-gnu:

 write time(sec) =   0.48150300979614258     
 done

real    0m0.889s
user    0m0.279s
sys     0m0.608s

vs.

 write time(sec) =    1.4788339138031006     
 done

real    0m1.880s
user    0m0.669s
sys     0m1.208s

Less good, but not as bad as you're reporting.

On aarch64-unknown-linux-gnu:

 write time(sec) =    3.3060228824615479     
 done

real    0m4.739s
user    0m0.300s
sys     0m4.420s

vs.

 write time(sec) =    4.7578129768371582     
 done

real    0m6.091s
user    0m1.080s
sys     0m5.000s

The factor is also bearable.