Re: libcj java.nio.DirectBuffer is slow (no inlining)

[David Daney <ddaney at avtrex dot com>]

Florian Weimer wrote:
> * P. O. Gaillard:
>
>
> > I am using the gcj 4.1 that came with Fedora Core 5 and the NIO
> > buffers are quite slow. From what I see with Oprofile, I would say
> > that this is because the code is not inlined.
>
>
> Most of the java.nio buffer methods are non-final,

As I said in the other message, none of the Buffer classes have 
accessible constructors.  They can effectively all be thought of as 
final classes.

> so inlining can
> only happen after devirtualization. This is hard to do at compile
> time.
>
> Are you sure the problem is lack of inlining?  There used to be
> problems with inefficient implementations of the array-based get/put
> methods.  Maybe you could post an excerpt of the profiles, so that we
> can see what's going on.