Subject: Re: RFC: Nagle latency tuning

From: Arnaldo Carvalho de Melo <[email-masked]>
Date: Tue, 9 Sep 2008 16:21:19 -0300

Em Tue, Sep 09, 2008 at 09:07:37PM +0200, Andi Kleen escreveu:
> > These apps have a love/hate relationship with TCP.  They'll probably love 
> > SCTP 5 years from now, but it's not mature enough for them yet.  They do 
> > want to minimize all latencies, 
> 
> Then they should just TCP_NODELAY.
> 
> > and many of the apps explicitly set 
> > TCP_NODELAY. 
> 
> That's the right thing for them.

But please ask them to use writev or build the logical packet in
userspace, sending it as just one buffer, or they will start asking for
nagle tunables ;-)
 
- Arnaldo