[PATCH] Add a new TCP_IGNOREIDLE socket option

[Andre Oppermann]

On 30.01.2013 18:11, Alfred Perlstein wrote:
> On 1/30/13 11:58 AM, John Baldwin wrote:
>> On Tuesday, January 29, 2013 6:07:22 pm Andre Oppermann wrote:
>>>
>>> Yes, unfortunately I do object.  This option, combined with the inflated
>>> CWND at the end of a burst, effectively removes much, if not all, of the
>>> congestion control mechanisms originally put in place to allow multiple
>>> [TCP] streams co-exist on the same pipe.  Not having any decay or timeout
>>> makes it even worse by doing this burst after an arbitrary amount of time
>>> when network conditions and the congestion situation have certainly changed.
>> You have completely ignored the fact that Linux has had this as a global
>> option for years and the Internet has not melted.  A socket option is far more
>> fine-grained than their tunable (and requires code changes, not something a
>> random sysadmin can just toggle as "tuning").
>
> I agree with John here.
>
> While Andre's objection makes sense, since the majority of Linux/Unix hosts now have this as a
> global option I can't think of why you would force FreeBSD to be a final holdout.

Unless OpenBSD, NetBSD, Solaris/Ilumos also support this it is hardly a
majority of Linux/Unix hosts.  And this isn't something a "sysadmin" should
tune at all.

-- 
Andre