Re: A TCP monitoring /proc/net file

[Andi Kleen <ak@xxxxxx>]

On Fri, Mar 23, 2001 at 09:19:14PM +0100, Federico David Sacerdoti wrote:
> The external monitoring made possible by the /proc/net/tcphealth is
> interesting because the SRTT is proportional to the speed of one's
> network connection, and duplicate acks indicate that packets are being
> lost (or reordered, less likely) somewhere in the network.

2.4 has a special state machine to detect reordering when the connection
supports timestamps. 

I guess some long term statistics (currently TCP_INFO only dumps current
state) would be useful too, but it's David's call if he want to put in 
the few cycles that'll cost (probably only in slow paths anyways) 

I guess it would be better if you would put it into the existing TCP_INFO
framework, perhaps with an additional /proc frontend to TCP_INFO.
Having two ways to do a similar thing is not good.

-Andi