On Nov  9 17:28, Bastien Bouclet wrote:
> The call to fflush was invalidating the read buffer, preventing relative
> seeks to positions that would have been inside the read buffer from
> being optimized. The call to srefill would then re-read mostly the same
> data that was initially in the read buffer.
> ---
>  newlib/libc/stdio/fseeko.c     | 31 ++++++-------------------------
>  newlib/libc/stdio64/fseeko64.c | 31 ++++++-------------------------
>  2 files changed, 12 insertions(+), 50 deletions(-)

Pushed.


Thanks,
Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
Red Hat