[PATCH] Add a new TCP_IGNOREIDLE socket option

[John Baldwin]

On Tuesday, February 05, 2013 12:44:27 pm Andre Oppermann wrote:
> On 05.02.2013 18:11, John Baldwin wrote:
> > On Wednesday, January 30, 2013 12:26:17 pm Andre Oppermann wrote:
> >> You can simply create your own congestion control algorithm with only the
> >> restart window changed.  See (pseudo) code below.  BTW, I just noticed that
> >> the other cc algos don't do not reset the idle window.
> >
> > *sigh*  I am fully competent at maintaining my own local changes.  The point
> > was to share this so that other people with similar workloads could make use
> > of it.  Also, a custom CC algo is not the right approach as we would want this
> > change regardless of the CC algo used for handling non-idle periods (so that
> > this is an orthogonal knob).  Linux also makes this an orthogonal knob rather
> > than requiring a separate CC algo.
> 
> If everything Linux does is good, then go ahead and commit it.  Discussing
> this change further then is pointless.  I don't mind too much and I have
> stated my case why I think it's the wrong thing to do.

Not everything Linux does is good, nor is everything Linux does bad.

> I would prefer to encapsulate it into its own not-so-much-congestion-management
> algorithm so you can eventually do other tweaks as well like more aggressive
> loss recovery which would fit your objective as well.  Since you have to modify
> your app anyways to do the sockopt call this seems a more complete solution to
> me.  At least better than to do a non-portable hack that violates one of the
> most fundamental TCP concepts.

This is real rich from the guy pushing the increased IW that came from Linux. :)

"Tools not policy" yadda yadda, but I digress.

-- 
John Baldwin