Re: Linux ping flood on localhost

kuznet@ms2.inr.ac.ru
Fri, 16 Apr 1999 21:45:15 +0400 (MSK DST)


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.

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.

Alexey Kuznetsov

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