[asterisk-dev] [RFC] optimising RTP traffic?

[Roy Sigurd Karlsbakk]

>> Summing it up about optimizing RTP traffic - I get that "sendfile"  
>> is off-limits"
>> because one of the file descriptions can't be a socket.
>>
>> splice - while einticing, is only avaialbe in new Lunix kernels,  
>> also it lacks
>> user space library support (I'll take this back if someone  
>> explains me how I
>> can do a syscall without library support)
>>
>> This leaves epoll and the only candiate to boost RTP performance  
>> on asterisk.
>>
>> Did I get it right?
>
> Isn't this exactly the sort of thing that Streams are supposed to do ?
> http://en.wikipedia.org/wiki/STREAMS says :
>
> "An important concept in STREAMS is the ability to push drivers —  
> custom code modules that can modify the functionality of a network  
> interface or other device — together to form a stack. Several of  
> these drivers can be chained together in order."
>
> Sounds like you could push a driver that would handle the majority  
> of rtp cases in the kernel, leaving the tricky ones for
> userlevel code.
>
> Now, I'm ignorant as to the practicality, but I do know that there  
> is a streams implementation for Linux.
> T.

This is LiS, Linux Streams, http://www.gcom.com/linux/lis/, if this  
is the same thing.

roy
--
Roy Sigurd Karlsbakk
roy at karlsbakk.net
(+47) 98013356
---
In space, loud sounds, like explosions, are even louder because there  
is no air to get in the way.