* Sebastian Reitenbach <sebas...@l00-bugdead-prods.de> [2011-12-02 16:16]: > On Friday, December 2, 2011 15:30 CET, Henning Brauer <lists-open...@bsws.de> > wrote: > > well, you actually found the answer yourself. if your em is running at > > 100M the 10MByte/s download is superb. Why it isn't going to gig - dunno. > > Yes, Its also not my main concern, I guess, with a different card, I'd also > get the full 155MBit like I get with Linux in this case. > I was just curious if someone knows why this card doesn't make GigaBit on > OpenBSD, therefore appended dmesg...
i have never seen an em misnegotiating - but this might also have to do with the choice of switches. > But as said, its not my main problem. hmm, then i missed it. > > your other issue is wasting time, electrons, energy and whatnot with > > calomel.org garbage. > > > > if someone feels like he could do the broader community a favor, track > > down whoever runs that site and at least ask him to remove that > > network tuning on openbsd page. or better all pages he has about > > openbsd - all garbage, bad advice, plain wrong, you get the idea. > > OK, I got it, forgetting about calomel.org. > At least with older OpenBSD releases, there were the recvspace, and sendspace > to tune the buffers used for the networking. Especially for the high bandwith > and high latency case, they improved things for me in the past. the socket buffers are autosized these days. no more manual twiddling needed. > So when I understand you right, there are no knobs anymore I can tune? well, I usually touch ifq.len and the icmp err pps limit on higher bandwidth routers. > Also the FAQ: http://www.openbsd.org/faq/faq6.html#Tuning says, it should not > be necessary for most of the cases, as it states: > VERY FEW people will need to adjust any networking parameters! that statement is true. > But since with Linux, I get about 1MB/s more throughput on the > overseas connection. Since the FAQ did not stated, there are no > knobs, I was hoping there might be something I can tune for my use case? the socket buffer autosizing algorithm might not raise enough in your case... and if that is indeed the culprit we need to adjust it. > If someone can say for sure, there is no knob I can tune, then I'll > take it as is. > If there is someone who could explain, why its slower on OpenBSD, so > that I could understand what the problem is, then I'd like to hear > about it, and I'd be happy. tracking that down isn't trivial. at that point, I'd start to read the code and experiment. -- Henning Brauer, h...@bsws.de, henn...@openbsd.org BS Web Services, http://bsws.de, Full-Service ISP Secure Hosting, Mail and DNS Services. Dedicated Servers, Root to Fully Managed Henning Brauer Consulting, http://henningbrauer.com/
