Public bug reported: Accessing the non-local network with Ubuntu 7.04 installed on my laptop is approximately 50x slower than it should be.
I have an almost identical network configuration to my desktop (RH9) with which to compare. Also, my laptop is able to run Fedora 4 (dual boot) which achieves much better network throughput. I have disabled IPv6 & iptables (as a precaution), but observed no improvement. The following command downloads ~1.8Mb from an external site & takes < 1 second on my (RH9) desktop: time wget http://mirror.aarnet.edu.au/pub/CPAN/modules/by- category/02_Language_Extensions/Module/Language-Haskell-0.01.tar.gz The same command on Ubuntu 7.04 takes over 1 minute! scp'ing a 16Mb file from my desktop (RH9) to my laptop (Ubuntu) takes < 1 second, suggesting local network performance is very good. Here is ifconfig & route output on Ubuntu which is effectively the same as on Fedora: lapss# ifconfig eth0 Link encap:Ethernet HWaddr 00:12:3F:E1:4C:8C inet addr:192.231.167.147 Bcast:192.231.167.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:52977 errors:0 dropped:0 overruns:0 frame:0 TX packets:18182 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:14151823 (13.4 MiB) TX bytes:2253348 (2.1 MiB) Interrupt:19 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:14 errors:0 dropped:0 overruns:0 frame:0 TX packets:14 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1140 (1.1 KiB) TX bytes:1140 (1.1 KiB) lapss# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.231.167.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0 0.0.0.0 192.231.167.250 0.0.0.0 UG 0 0 0 eth0 lapss# cat /etc/resolv.conf search aao.gov.au nameserver 192.231.167.202 nameserver 192.231.167.2 My laptop is a Dell Inspiron 9300. My colleague just installed Ubuntu on his Dell Latitude D610 laptop & has similar (poor) performance when accessing a non-local network. I also tried Ubuntu 6.06 Live CD on my laptop. Non-local network throughput was fine! (~ 4 seconds for aforementioned 'wget' command to complete.) Please let me know what else I can do to help diagnose this problem. Scott. ** Affects: Ubuntu Importance: Undecided Status: New -- very slow external network access https://bugs.launchpad.net/bugs/126711 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
