Messages in this thread | | | From | "Linux Mailing Lists Receiver @serious.xs4all.nl" <> | Subject | Linux + ISDN + SLOW speed on BSDI systems | Date | Tue, 31 Aug 1999 08:53:21 +0200 (CEST) |
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Hey People!
Got some strange problem here:
If I use e.g. kernel 2.2.0 or later or 2.3.0 or later I get a very low transfer rate when leeching data from BSDI systems. (for example: my uucp feed is on a BSDI box, I normally would at least get 6 to 7k/sec but with those kernels I get like 1500cps max.) (and there are loads of 2.1.xx versions so to compile em all and see where things went 'wrong' would take a while... ;))
If I during the same connection try another non BSDI site it all works just fine. So the problem afaik only arises with BSDI boxes.
I mailed my provider about this and they were pretty clueless...1 made a remark that it could have something to do with the Linux TCP/IP kernel stack or whatever...(?)
My system:
AMD K6-2 266 Teles 16.3 ISA card, using Hisax drivers. (Slackware Linux distribution) isdn4k-utils-3.0beta2 (but I also have this with older versions and also with a current cvs version from SuSE and also with a complete isdn prepared (?) kernel from SuSE (as I recall I tried version 2.2.5)). Euro DSS1 ISDN (Netherlands)
I tried to see what happened with tcpdump...but it gave me lots of "missing bytes" packages or so ...I merely think this is a tcpdump vs ISDN layer problem...or something like that.
If anyone has only a tiny clue or a hint in what direction I should look :) I would really appreciate it ...(I want to use the latter kernels ofcourse and also LSZ / STAC compression....:\ (Can't get that done with 2.0.37.))
Pretty clueless here...;)
Thanks,
Bas Oude Nijeweme linux@serious.xs4all.nl
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