Nagios Tuning – Adventures in ping

After exhausting the official recommendations on tuning Nagios I begain searching for additional recommendations. I found several mailing list archives discussing the use of check_fping in place of check_ping (fping = fast ping). This sounded great since upwards of 30% of our 9000+ checks are ping. The net effect of one second faster per check is significant. Unfortunately, fping is only faster because its default behavior is to send 1 packet. For fping to remain comparable to our existing check it must send 3 packets. In my tests check_fping is actually slower then check_ping. # /usr/bin/time...