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Subject: Re: Unexpected splice "always copy" behavior observed
From: Steven Rostedt <rostedt@goodmis.org>
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Wed, 2010-05-19 at 07:39 -0700, Linus Torvalds wrote:

> The real limitation is likely always going to be the fact that it has to 
> be page-aligned and a full page. For a lot of splice inputs, that simply 
> won't be the case, and you'll end up copying for alignment reasons anyway.

That's understandable. For the use cases of splice I use, I work to make
it page aligned and full pages. Anyone else using splice for
optimizations, should do the same. It only makes sense.

The end of buffer may not be a full page, but then it's the end anyway,
and I'm not as interested in the speed.

-- Steve