At 12:08 17.04.2001 -0400, Tim Seaver wrote:
>I apologize to VeriSign for mis-stating my gTLD performance results. What
>I was actually seeing in my DNS tests was a regular 4% loss from the two
>gTLD servers closest to me, c and g. However, this loss was due to the
>servers being unresponsive for two 30 minute periods per day during zone
>reloads rather than being overloaded. With the move of g on April 4, it
>no longer shows that behavior, and Matt tells me that c will be moving
>to a new configuration shortly to avoid the reload outages. That's
>good news, since it should remove some 20% of the server retries I see.
A random measurement from a site in Trondheim, Norway, April 15 to now:
[hta@dokka dnsstuff]$ tail -5000 log.log | ./buckets
384 samples
Server Samp % Min Ave Max 0 1.0 2.0 3.0 4.0 5.0 6.0
A.GTLD-SERVERS.NET 384 100.00 133 189 5150 381 1 2
B.GTLD-SERVERS.NET 363 94.53 194 351 6665 360 2 1
C.GTLD-SERVERS.NET 382 99.48 132 161 5126 380 1 1
D.GTLD-SERVERS.NET 384 100.00 133 215 5433 379 1 4
E.GTLD-SERVERS.NET 377 98.18 134 185 383 377
F.GTLD-SERVERS.NET 384 100.00 207 235 1584 383 1
G.GTLD-SERVERS.NET 383 99.74 205 231 1548 382 1
I.GTLD-SERVERS.NET 384 100.00 32 91 5079 381 3
J.GTLD-SERVERS.NET 381 99.22 309 443 6095 372 1 7 1
K.GTLD-SERVERS.NET 385 100.26 53 93 5068 384 1
L.GTLD-SERVERS.NET 385 100.26 150 189 6504 384 1
M.GTLD-SERVERS.NET 355 92.45 375 773 5535 328 2 25
My test seems to be doing 1 retry after 5 seconds.
Apart from B and M, I think they are doing very well.
Same measurement for the root servers:
[hta@dokka dnsstuff]$ tail -5000 arpa.log | ./buckets
500 samples
Server Samp % Min Ave Max 0 1.0 2.0 3.0 4.0 5.0 6.0 7
A.ROOT-SERVERS.NET 495 99.00 142 280 5160 482 2 11
B.ROOT-SERVERS.NET 490 98.00 207 602 5486 461 2 27
C.ROOT-SERVERS.NET 479 95.80 140 848 8947 424 53 1
D.ROOT-SERVERS.NET 499 99.80 133 170 5173 496 2 1
E.ROOT-SERVERS.NET 490 98.00 191 226 5209 487 2 1
F.ROOT-SERVERS.NET 497 99.40 194 278 5214 491 1 5
G.ROOT-SERVERS.NET 448 89.60 145 949 7548 385 1 61 1
H.ROOT-SERVERS.NET 379 75.80 173 1652 6962 286 1 90 2
I.ROOT-SERVERS.NET 500 100.00 33 47 250 500
G and H are not terribly useful to me. I is in Sweden, proving how much
speed-of-light matters in these things; its average is a third of the
minimum roundtrip time of the second best root server.
The reason J-M are not included is that the script actually looks for the
current root servers of in-addr.arpa....
