Hi Meiyo, Thank you for sharing this information with us!
Can you also share what numbers you get when you run measure_get against berlin.guixsd.org directly? Clearly, the connection from you to CloudFront is not as performant as it is for others in other parts of the world, but I wonder if it's still better than accessing berlin directly. If you could run measure_get against berlin directly and share the numbers, we can see if it represents any significant improvement for you. Meiyo Peng <meiyo.p...@gmail.com> writes: > I tested your script several times. > > 1. Tested today at home. China Unicom home broadband. 50Mb/s. > > The result is slow as usual. curl failed once. > berlin-mirror.marusich.info is resolved to Seattle, WA, US. Well, that's not great. Perhaps it's still better than it would be if the DNS name resolved to a location in Europe, though. > #+BEGIN_EXAMPLE > ➜ ~ measure_get > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > % Total % Received % Xferd Average Speed Time Time Time > Current > Dload Upload Total Spent Left > Speed > 55 66.6M 55 36.9M 0 0 17926 0 1:04:59 0:36:02 0:28:57 > 17733 > url_effective: > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > http_code: 200 > num_connects: 1 > num_redirects: 0 > remote_ip: 52.85.158.151 > remote_port: 443 > size_download: 38764357 B > speed_download: 17926.000 B/s > time_appconnect: 6.078850 s > time_connect: 3.006821 s > time_namelookup: 2.659785 s > time_pretransfer: 6.079097 s > time_redirect: 0.000000 s > time_starttransfer: 9.626001 s > time_total: 2162.379211 s > curl: (92) HTTP/2 stream 0 was not closed cleanly: INTERNAL_ERROR (err 2) I see, this is about 143 Kbps (not Mbps) of throughput, and 347 ms after DNS name resolution. > ➜ ~ measure_get > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > % Total % Received % Xferd Average Speed Time Time Time > Current > Dload Upload Total Spent Left > Speed > 100 66.6M 100 66.6M 0 0 109k 0 0:10:25 0:10:25 --:--:-- > 241k > url_effective: > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > http_code: 200 > num_connects: 1 > num_redirects: 0 > remote_ip: 52.85.158.22 > remote_port: 443 > size_download: 69899433 B > speed_download: 111816.000 B/s > time_appconnect: 3.507528 s > time_connect: 2.650373 s > time_namelookup: 2.261801 s > time_pretransfer: 3.507637 s > time_redirect: 0.000000 s > time_starttransfer: 5.995298 s > time_total: 625.129571 s > > ➜ ~ measure_get > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > % Total % Received % Xferd Average Speed Time Time Time > Current > Dload Upload Total Spent Left > Speed > 100 66.6M 100 66.6M 0 0 109k 0 0:10:23 0:10:23 --:--:-- > 141k > url_effective: > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > http_code: 200 > num_connects: 1 > num_redirects: 0 > remote_ip: 52.85.158.22 > remote_port: 443 > size_download: 69899433 B > speed_download: 112187.000 B/s > time_appconnect: 2.280972 s > time_connect: 1.407197 s > time_namelookup: 1.056180 s > time_pretransfer: 2.281234 s > time_redirect: 0.000000 s > time_starttransfer: 3.167703 s > time_total: 623.061584 s > #+END_EXAMPLE 897 Kbps, 351 ms after the name lookup. > 2. Tested 3 days ago at my office. China Telecom enterprise broadband. 50Mb/s. > > Unusually fast! berlin-mirror.marusich.info is resolved to Seattle, WA, > US. I have no idea why it's so fast that day. > > #+BEGIN_EXAMPLE > ➜ ~ measure_get > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > % Total % Received % Xferd Average Speed Time Time Time > Current > Dload Upload Total Spent Left > Speed > 100 66.6M 100 66.6M 0 0 1364k 0 0:00:50 0:00:50 --:--:-- > 1352k > url_effective: > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > http_code: 200 > num_connects: 1 > num_redirects: 0 > remote_ip: 13.35.20.109 > remote_port: 443 > size_download: 69899433 B > speed_download: 1397429.000 B/s > time_appconnect: 2.432387 s > time_connect: 0.200842 s > time_namelookup: 0.000446 s > time_pretransfer: 2.432659 s > time_redirect: 0.000000 s > time_starttransfer: 2.673045 s > time_total: 50.020945 s 11 Mbps, 200 ms after the name lookup. > ➜ ~ measure_get > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > % Total % Received % Xferd Average Speed Time Time Time > Current > Dload Upload Total Spent Left > Speed > 100 66.6M 100 66.6M 0 0 1592k 0 0:00:42 0:00:42 --:--:-- > 2506k > url_effective: > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > http_code: 200 > num_connects: 1 > num_redirects: 0 > remote_ip: 13.35.20.109 > remote_port: 443 > size_download: 69899433 B > speed_download: 1630687.000 B/s > time_appconnect: 0.653270 s > time_connect: 0.209455 s > time_namelookup: 0.001582 s > time_pretransfer: 0.658399 s > time_redirect: 0.000000 s > time_starttransfer: 0.883126 s > time_total: 42.865868 s > #+END_EXAMPLE 13 Mbps, 208 ms after the name lookup. > 3. Tested today at my office. China Telecom enterprise broadband. 50Mb/s. > > Slow as usual. berlin-mirror.marusich.info is still resolved to Seattle, > WA, US. I killed the program several times because it hung there with no > data transfer for a few minutes. The TCP connection was probably closed > by GFW. This is very common here. > > #+BEGIN_EXAMPLE > ➜ ~ measure_get > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > % Total % Received % Xferd Average Speed Time Time Time > Current > Dload Upload Total Spent Left > Speed > 100 66.6M 100 66.6M 0 0 48110 0 0:24:12 0:24:12 --:--:-- > 41808 > url_effective: > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > http_code: 200 > num_connects: 1 > num_redirects: 0 > remote_ip: 52.85.158.151 > remote_port: 443 > size_download: 69899433 B > speed_download: 48110.000 B/s > time_appconnect: 0.872926 s > time_connect: 0.282048 s > time_namelookup: 0.000524 s > time_pretransfer: 0.873099 s > time_redirect: 0.000000 s > time_starttransfer: 1.187467 s > time_total: 1452.904154 s 385 Kbps, 282 ms. > ➜ ~ measure_get > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > % Total % Received % Xferd Average Speed Time Time Time > Current > Dload Upload Total Spent Left > Speed > 2 66.6M 2 1809k 0 0 5760 0 3:22:15 0:05:21 3:16:54 > 0^C% > > ➜ ~ measure_get > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > % Total % Received % Xferd Average Speed Time Time Time > Current > Dload Upload Total Spent Left > Speed > 52 66.6M 52 34.9M 0 0 16772 0 1:09:27 0:36:26 0:33:01 > 0^C% > > ➜ ~ measure_get > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > % Total % Received % Xferd Average Speed Time Time Time > Current > Dload Upload Total Spent Left > Speed > 100 66.6M 100 66.6M 0 0 58181 0 0:20:01 0:20:01 --:--:-- > 87975 > url_effective: > https://berlin-mirror.marusich.info/nar/gzip/1bq783rbkzv9z9zdhivbvfzhsz2s5yac-linux-libre-4.19 > http_code: 200 > num_connects: 1 > num_redirects: 0 > remote_ip: 52.85.158.22 > remote_port: 443 > size_download: 69899433 B > speed_download: 58181.000 B/s > time_appconnect: 2.297713 s > time_connect: 1.904176 s > time_namelookup: 1.727602 s > time_pretransfer: 2.297974 s > time_redirect: 0.000000 s > time_starttransfer: 2.503263 s > time_total: 1201.408929 s 465 Kbps, 177 ms. -- Chris
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