[infinispan-dev] Zero-copy buffer transfers

[Bela Ban]

maybe, but I don't know netty

On 5/23/13 6:42 PM, William Burns wrote:
> Bela,
>
> You are thinking something like Netty's composite byte buffer?
>
> http://netty.io/4.0/guide/#architecture.5
>
> On 5/23/13 2:09 PM, Manik Surtani wrote:
>> Bela,
>>
>> We shouldn't need to wait for NIO2/JDK7 for this.  We can do this in JDK6
> as well, granted the impl may not be as good unless run on a Java7 VM.
>
> In the current NIO impl, unfortunately MulticastSockets are not
> supported (MulticastChannel), only DatagramChannels, so I couldn't
> implement multicasting, only TCP this way.
>
>
>> Do you have any notes on your designs somewhere?
>
> Not really, but some JIRAs (se below). The main idea is that JGroups
> passes a list of buffers directly to the socket which then creates
> packets by writing them in sequence (gathering writes). One of the
> buffers will be the buffer passed by Infinispan to JGroups; JGroups then
> doesn't copy it into one single larger buffer, but passes it directly to
> the socket, avoiding a copy.
>
> - https://issues.jboss.org/browse/JGRP-815
> - https://issues.jboss.org/browse/JGRP-809
> - https://issues.jboss.org/browse/JGRP-816
>
>
>
> --
> Bela Ban, JGroups lead (http://www.jgroups.org)
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-- 
Bela Ban, JGroups lead (http://www.jgroups.org)