Ultra low latency in cluster application

[Trustin Lee]

Hi David,

Any updates on this issue?  I'd like to help you if you are still
experiencing this problem.

— Trustin Lee, http://gleamynode.net/

On Thu, Feb 26, 2009 at 9:03 PM, Trustin Lee <tlee at redhat.com> wrote:
> Hi David,
>
> On Thu, Feb 26, 2009 at 1:56 AM, David Alves <davidralves at gmail.com> wrote:
>>  The only way I can prevent the problem is by using plain old blocking
>> Sockets, there the latency is minimal, but the throughput also plummets 10
>> fold (dropping from 40.000 to 5.000 on my mac). What I find curious is that
>> Oio in netty is supposed to be built over the old sockets right? If i use
>> Oio the latency still increases...
>
> This is really interesting.  Oio in Netty is a very thin layer built
> on top of the old sockets, so it shouldn't involve any additional
> latency.  If you used Oio on all nodes, then you should see the same
> result with the plain sockets.  Otherwise, it means whether 1) there's
> a bug in Netty or 2) there's a bug in your app.
>
> Anyway, I'd appreciate your help if you could send me some
> reproduceable code.  It might be working just fine in my machines, but
> who knows? :)
>
> — Trustin Lee, http://gleamynode.net/
>