RE: Linux 2.6.17-rc2

[Hua Zhong]

http://lwn.net/Articles/178199/ 

> -----Original Message-----
> From: linux-kernel-owner@xxxxxxxxxxxxxxx 
> [mailto:linux-kernel-owner@xxxxxxxxxxxxxxx] On Behalf Of Diego Calleja
> Sent: Wednesday, April 19, 2006 11:00 AM
> To: Linus Torvalds
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Subject: Re: Linux 2.6.17-rc2
> 
> Could someone give a long high-level description of what 
> splice() and tee() are? I need a description for 
> wiki.kernelnewbies.org/Linux_2_6_17 (while we're it, it'd be 
> nice if some people can review it in case it's missing 
> something ;) I've named it "generic zero-copy mechanism" but 
> I bet there's a better description, if it's so cool as people 
> says it'd be nice to do some "advertising" of it (notifying 
> people of new features is not something linux has done too 
> well historically :)
> 
> What kind of apps available today could get performance 
> benefits by using this? Is there a new class of "processes" 
> (or apps) that couldn't be done and can be done now using 
> splice, or are there some kind of apps that become too 
> complex internally today because they try to avoid extra copy 
> of data and they can get much simpler by using splice? Why 
> people sees it as a "radical" improvement in some cases over 
> the typical way of doing I/O in Unix. Is this similar or can 
> be compared with ritchie's/SYSV STREAMS?
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