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