stdio and Tango I/O performance

[Lars Ivar Igesund]

Andrei Alexandrescu (See Website For Email) wrote:

> This ate a lot of time measuring, testing, and optimizing. So I have a
> question - has anyone verified that Tango's I/O performance is up to
> snuff? I see it imposes the dynamic-polymorphic approach, and unless
> there was some serious performance work going on, it's possible it's
> even slower than stdio.

If you have actually tested Tango IO and finds it to be slower than
the "new" stdio, then this would be interesting to know, and also the test
harness in use. If not, I find your suggestive tone above to be rather
rude, given the time put into making Tango IO as good as possible. If the
IO in Phobos has been as slow as you say, I highly doubt that Tango has
been in similar ranges, given that it obviates C IO by going directly to
the OS via a buffer.

Now, if you have tested that Tango's IO is slower than Phobos, then maybe
you could spend some time helping to improve it too? Your approach above is
rather unconstructive in an overall fashion.

-- 
Lars Ivar Igesund
blog at http://larsivi.net
DSource, #d.tango & #D: larsivi
Dancing the Tango