Re: File output and buffering

[Maciej Sobczak <see.my.homepage@gmail.com>]

On 21 Sie, 11:24, "Dmitry A. Kazakov" <mail...@dmitry-kazakov.de>
wrote:

> > I do not know what is "conveyered".
>
> Pipelined processing. When you refer to throughput, then it is increased
> only because of existence of hidden conveyers, which ultimately always
> boils down to some asynchronously working elements.

No, there is no asynchronous processing there (usually). There is
grouping that leads to smaller number of still synchronous operations.

> Well, here we need to clarify what is the I/O end point.

No, we do not need to, especially when it is already clear that we
would spiral down in an endless philosophy discussion about
definitions.

It is enough to get a clock and measure two simple test programs.
I can offer the test programs if needed.

> Ada.Text_IO is slow because of the buffering it does in order to implement
> a protocol (pages) which you do not need.

I do not see how paging could be related here.
Or at least I can imagine an implementation where the overhead of
bookkeeping pages is less than 15-20x.

--
Maciej Sobczak * www.msobczak.com * www.inspirel.com

Database Access Library for Ada: www.inspirel.com/soci-ada