Messages in this thread | | | Date | Fri, 12 Feb 1999 15:58:18 +0100 | From | Andi Kleen <> | Subject | Re: Weird tcp performance differences with 2.0 and 2.2 kernels |
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On Fri, Feb 12, 1999 at 08:09:43AM +0100, Mike Galbraith wrote: > On Fri, 12 Feb 1999, David C Niemi wrote: > > > > > Users are reporting odd and unpleasant FTP hangs on ftp.tux.org as well, > > which is now running 2.2.1 with the latest fixed wu-ftpd. These problems > > did not occur with the 2.0.36 kernel but did with 2.2pre6; I'm not quite > > sure whether they occured in the 2.1.126-8 era because the UP flu made > > things unusable back then. > > > > The hangs do not ALWAYS happen, they are more likely on more remote > > connections and on connections via firewalls (in the latter case the > > connections work fine for a similar FTP server running 2.0.36 and used to > > work fine for ftp.tux.org prior to 2.2.x. > > ftp.porcupine.org is one of these for me.. _always_ times out when I > do 'dir' in the /pub/security directory. (tcpdump attached). If I.. > echo 0 > /proc/sys/net/ipv4/tcp_timestamps > ..it works fine. Anyone know why?
Probably your terminal server has broken VJ compression. Try turning VJ compression off on your link.
-Andi
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