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SubjectRe: Linux ping flood on localhost
On Fri, 16 Apr 1999 kuznet@ms2.inr.ac.ru wrote:

> Hello!
>
> > I think the latest ping will produce 90% packet loss on a flood to
> > localhost. This was some kind of 'feature' (a side-effect) introduced
> > around 2.2.x (Alan responded to this). As I understand it, ICMP replies
> > are delayed by a HZ, so the maximum response-rate is 100/second. Ping
> > flood tries 1000/second so you lose the flood-game.
>
> Ping rate is unlimited for any kernel version.
> At least, I see 15kpps with zero packet loss and rtt below 100usecs.
> Taking into account that "ping -f" does not buffer output,
> it is close to perfect. It is the first.
>
Well it certainly does not work that way on my system and I use
the so-called latest ping from net-tools-1.50.tar.gz. Over six
months ago, I called this `ping -f` problem to Alan and it is
his response I quoted (although not directly).

> And the second: Dick, you were said already dozen of times:
> 1. your ping is buggy. Upgrade.
> 2. nothing occured in 2.1, it was behaviour of Linux since 1.0 or so.
>
> Please, stop to confuse people.
So where do I get a ping later than what is shown in /linux/Documentation
?


Cheers,
Dick Johnson
***** FILE SYSTEM WAS MODIFIED *****
Penguin : Linux version 2.2.5 on an i686 machine (400.59 BogoMips).
Warning : It's hard to remain at the trailing edge of technology.

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