------- Comment #11 from paolo dot carlini at oracle dot com 2010-09-08 09:59
(In reply to comment #8)
> But a 9-10x difference doesn't sound reasonable to me. The synced mode is not
> unbuffered, before or after my suggested change, it uses the internal buffer
So? We are not changing glibc here. The C++ library does *not* use buffering in
the synced mode, and it does otherwise, for fstreams in particular. Where do
you think the performance difference is essentially coming from?