low through-put on bge cards OBSD 4.0 3.9
I have a pair of Sunfire x2100's I am trying to configure as vpn routers to bridge between two Data Centres. isakmpd - easy working bridging - also easy bridging over ipsec tunnel - surprisingly easy as well The problem I am having is the one part that I _assumed_ would be the easiest. I can not seem to get more that ~43 megabytes per second through the bge cards on these boxes. This is the unencrypted speed with the cards attached by x-over cable or on a 2950 switch with only these two boxes attached. I am running 4.0 using the 386 mp kernel compiled for IOAPIC. I had essentially the same results w/ 3.9. I tried installing Suse 10.0 just to see what kind of throughput I got there, and was getting ~80 megabytes per second. This told me that the HW was at least capable of getting the throughput I expected. Of course the bloody linux dist is useless for these types of applications.
low through-put on bge cards OBSD 4.0 3.9
I have a pair of Sunfire x2100's I am trying to configure as vpn routers to bridge between two Data Centres. isakmpd - easy working bridging - also easy bridging over ipsec tunnel - surprisingly easy as well The problem I am having is the one part that I _assumed_ would be the easiest. I can not seem to get more that ~43 megabytes per second through the bge cards on these boxes. This is the unencrypted speed with the cards attached by x-over cable or on a 2950 switch with only these two boxes attached. I am running 4.0 using the 386 mp kernel compiled for IOAPIC. I had essentially the same results w/ 3.9. I tried installing Suse 10.0 just to see what kind of throughput I got there, and was getting ~80 megabytes per second. This told me that the HW was at least capable of getting the throughput I expected. Of course the bloody linux dist is useless for these types of applications. Any suggestions?
Re: low through-put on bge cards OBSD 4.0 3.9
On Mon, 30 Oct 2006, Dag Richards wrote: I can not seem to get more that ~43 megabytes per second through the bge cards on these boxes. This is the unencrypted speed with the cards attached by x-over cable or on a 2950 switch with only these two boxes attached. [snip] Any suggestions? Try bumping net.inet.tcp.recvspace and net.inet.tcp.sendspace. http://www.openbsd.org/faq/faq6.html#Tuning -- Kyle George [EMAIL PROTECTED]
Re: low through-put on bge cards OBSD 4.0 3.9
Kyle George wrote: On Mon, 30 Oct 2006, Dag Richards wrote: I can not seem to get more that ~43 megabytes per second through the bge cards on these boxes. This is the unencrypted speed with the cards attached by x-over cable or on a 2950 switch with only these two boxes attached. [snip] Any suggestions? Try bumping net.inet.tcp.recvspace and net.inet.tcp.sendspace. http://www.openbsd.org/faq/faq6.html#Tuning Yes I had tried setting the send and receive buffers to 65536 om 3.9 it helped but not much as I recall. I just tried setting the buffers on 4.0 and got ~57 MBps throughput, so thanks thats it better. I am using the oh so precise and accurate ftp as a means of measuring throughput. I know it is at best an imprecise method, but I was so far off my expectation I did not see the point in being more rigorous. I just download the iperf package, I will see if I can get some more precise numbers.
