Ubuntu
linux package

  1. Bug #433972
  2. Comment #37

Comment 37 for bug 433972

Revision history for this message
Yermo (yml-yml) wrote : Re: Internet ping very slow on Karmic Koala

I am also seeing random network slowdowns on my Dell N-Series using a wired connection. (Kubuntu 9.10, all updates applied) It does not seem to affect local connections (e.g. connecting to Apache on the same box, which was not the case with the ipv6 bug and nsswitch.conf issue ).

Cataloging my experiences here: http://yml.com/fv-b-1-545/Slow-DNS-Lookups-in-Ubuntu-9-10--Karmic-Koala-.html

I have disabled ipv6 and edited nsswitch.conf which improved performance, but I am still seeing very long connection delays and random slowdowns in network connections. Running WinXp in VMWare on the very same machine shows no such slowdowns, thereby eliminating any questions about the network.

My feeling is this is a race condition. It seems to occur most frequently when more than one process (or thread) attempts to make a network connection (e.g. load up a bunch of tabs in firefox simultaneously and at the same time pull mail using Thunderbird)

If there are any tests I can run to help track this down, please let me know.