Re: [hobbit] fping tuning

[Frédéric Mangeant <frederic.mangeant (at) steria.com>]

Schwimmer, Eric E *HS a écrit :
> We're monitoring 1420 IPs in hobbit, and it takes fping
> ~40 seconds to go through them all:
>
> <snip>
> [root (at) hobbit fping]# fping -i5 -b12 -f ips -r1 -t250 -B2 -q -s
>     1430 targets
>     1419 alive
>       11 unreachable
>        0 unknown addresses
>
>       55 timeouts (waiting for response)
>     1474 ICMP Echos sent
>     1420 ICMP Echo Replies received
>        0 other ICMP received
>
>  0.05 ms (min round trip time)
>  5.83 ms (avg round trip time)
>  281 ms (max round trip time)
>        40.704 sec (elapsed real time)
> </snip>
>   


Hi Eric

this won't help you much, but I'm monitoring 1733 hosts with Hobbit, on 
a dual Xeon 3.2 GHz with 4 Gb running an up-to-date Gentoo Linux.
Hobbit takes between 15 and 30 seconds to ping 1632 hosts; sudo is used 
to run fping :


TIME SPENT
Event                                            Starttime          Duration
PING test completed (1632 hosts)         1146122348.804056         19.808170


Running fping by hand gives this :


# fping -i5 -b12 -f /tmp/ips.txt -r1 -t250 -B2 -q -s
[...]
30.999 sec (elapsed real time)


Lowering the -i, -r, -t values doesn't give anything...

The funny thing is that Hobbit runs sudo with -Ae, which is way slower 
when I run it by hand...

--

Frédéric Mangeant

Steria EDC Sophia-Antipolis