I've used your ping data before, it was useful to know where to place my servers, and how nice of you to publish a dump as well! If I can wish for mor data: a min-median-max client latencies for all those servers would be swell, but I can see that you might not want to publish the results of that maybe on per month basis? Just a couple of thousand packets every hour should be enough: tcpdump -w stats.pcap -c5000 "tcp[tcpflags] & (tcp-syn|tcp-ack) != 0"