Re: resurrecting tcphealth

From: Eric Dumazet
Date: Mon Jul 16 2012 - 07:46:35 EST

On Mon, 2012-07-16 at 13:33 +0200, Piotr Sawuk wrote:
> On Sa, 14.07.2012, 01:55, Stephen Hemminger wrote:
> > I am not sure if the is really necessary since the most
> > of the stats are available elsewhere.
> if by "most" you mean address and port then you're right.
> but even the rtt reported by "ss -i" seems to differ from tcphealth.

Thats because tcphealth is wrong, it assumes HZ=1000 ?

tp->srtt unit is jiffies, not ms.

tcphealth is a gross hack.

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