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From: Beman Dawes (bdawes_at_[hidden])
Date: 2001-03-04 08:38:28

At 03:13 PM 3/3/2001 +0000, pinkfloydhomer_at_[hidden] wrote:

>Would a non-blocking I/O library addition be off topic in Boost, or
>wouldn't it?

It certainly wouldn't be off topic for Boost.

But I wonder if it would actually result in a performance improvement on
most modern operating systems.

Don't most OS's already do anticipatory buffering? Have you run timings?

I ran some timings a few years ago on Win NT, and found that the compiler's
runtime library was actually slightly more efficient than explicitly
calling the native Win NT non-blocking I/O. The build-in OS I/O buffering
was more efficient that anything I could do in user code, perhaps because
it remaps memory and does other supervisor mode tricks you can't do in user

But if your timings show significant performance enhancements, non-blocking
I/O might well be of interest.


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