- From: Kent Vander Velden <graphix@iastate.edu>
- Date: Wed, 18 Feb 1998 12:49:47 -0600
- To: Henrik Frystyk Nielsen <frystyk@w3.org>
- CC: Kent Vander Velden <graphix@toybox.cc.iastate.edu>, www-lib@w3.org
Henrik Frystyk Nielsen wrote: > > At 22:04 02/17/98 -0600, Kent Vander Velden wrote: > > > > I have noticed that when running Apache on NT transferring files to > >another NT machine is somewhere around 20x faster than transferring > >to a Unix machine using libwww. Transferring between two Unix machines > >is a reasonable rate but NT to Unix is really bad. All machines are > >on the same wire. Is there something with libwww that it does not like > >to talk with NT servers? > > Hmm, that's interesting - the difference in performance may be in the TCP > stacks as well as in libwww itself. What Unix are you running? NT 4.0 Server and SGI Irix 5.3 and 6.2 and HPUX 9.07 are the ones that I have tried so far. Since I also see this problem with Netscape it must be something with the stack. NT <-> Unix trasfers seem to max out around 100k/s and generally are ~40k/s. Unix <-> Unix and NT <-> NT transfer generally are at >500k/s and often ~900k/s. > Also, do you have some TCP dumps of what is going on? As they are all on > the same wire, it should be easy to use tcpdump to capture the transfers. > Make sure that you are running the latest version of tcpdump - you can find > it linked from I will get a few dumps of the network when I get to work and make them available via ftp this evening. Thanks!
Received on Wednesday, 18 February 1998 13:49:54 UTC