On Jul 7, 2008, at 9:16 PM, Daniel J. Luke wrote:
On Jul 7, 2008, at 10:34 PM, William Siegrist wrote:On Jul 7, 2008, at 6:22 PM, Ryan Schmidt wrote:MacPorts trunk seems to like picking distfiles.macports.org to download distfiles because its pings return fast, but actually downloading files from it is slow, like less than 10KB/sec. Anyone else seeing this?I just did a quick test and I get much better results. Obviously, to my office is 5-10 MB/s which is expected since the servers are very close to me. But even downloading to my personal machine at home over a cable modem averaged around 1 MB/s. There's probably a point when you're too far away for pings to accurately model the bandwidth between, but I think you should be getting something better than 10KB/s anyway.Maybe there's some ICMP filtering that's breaking PMTU discovery (which could be interfering with TCP window scaling):[xeon:~] dluke% ping -s 1600 gandalf.geeklair.net PING geeklair.net (129.250.34.2): 1600 data bytes 1608 bytes from 129.250.34.2: icmp_seq=0 ttl=51 time=90.470 ms 1608 bytes from 129.250.34.2: icmp_seq=1 ttl=51 time=74.231 ms ^C --- gandalfgeeklair.net ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max/stddev = 74.231/82.350/90.470/8.119 ms [xeon:~] dluke% ping -s 1600 distfiles.macports.org PING alpha.macosforge.org (17.254.17.246): 1600 data bytes ^C --- alpha.macosforge.org ping statistics --- 6 packets transmitted, 0 packets received, 100% packet loss
I enabled all ICMP types. Does that help? -Bill
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