Simon Kirby <sim@netnation.com> scribbled: > > Yes, and I have done 60 MB/second and more, but had to increase the MTU > slightly to get over 90 MB/second TCP transfers. Something must be not > quite right. Note that bing doesn't actually do a bandwidth test from > host to host, it tries to estimate bandwidth by using varying packet > sizes. The interrupt coalescing in the tg3 driver may be throwing off > these tests. Try using FTP or a more simple test to measure TCP > throughput. > I forgot to mention that I am using the bcm5700 driver (version 5.0.17). Do you think I should switch to the tg3 driver instead? These cards are running on Dell PowerEdge 2650 serves. The PCI interface is a 64-bit PCIX 133Mhz interface. The card is running on IRQ 28. Another person on SuSE's SLE mailing list mentioned that they were get up to 42% packet loss using the suse verified bcm5700 driver. I will try the tg3 driver as soon as drbd finishing synching, unless i can figure out a way to stop the synch remotely. -- +----------------------------------+---------------------------------+ | Lee Leahu | voice -> 708-444-2690 | | Internet Technology Specialist | fax -> 708-444-2697 | | RICIS, Inc. | email -> lee@ricis.com | +----------------------------------+---------------------------------+ | PGP Public Key: http://www.dyweni.com/index2.php?page=gpg | +--------------------------------------------------------------------+ | I cannot conceive that anybody will require multiplications at the | | rate of 40,000 or even 4,000 per hour ... | | -- F. H. Wales (1936) | +--------------------------------------------------------------------+ - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
