Messages in this thread | | | Date | Mon, 11 Mar 2002 23:20:10 -0700 | From | Richard Gooch <> | Subject | Re: Broadcom 5700/5701 Gigabit Ethernet Adapters |
| |
David S. Miller writes: > From: Richard Gooch <rgooch@ras.ucalgary.ca> > Date: Mon, 11 Mar 2002 12:48:43 -0700 > > David S. Miller writes: > > NAPI is really only going to help with high packet rates not with > > thinks like raw bandwidth tests. > > You're saying that people should just go and use jumbo frames? Isn't > that a problem for mixed 10/100/1000 LANs? > > No, I'm saying that the current situation is fine with most cards > and most uses. > > Ben pointed out that interrupt-mitigation challenged cards like the > NatSemi do gain, but that is the only case I can imagine at this > time. > > Unless you have a card like the NatSemi (no interrupt mitigation) or > your interfaces are being hit with 120,000 packets per second EACH, > then NAPI is not going to be an explosive gain for you. > > Look, we were able to get world records in web serving without NAPI, > right? :-)
:-) I'd be happy to get near 1 Gb/s (800 Mb/s is acceptable) with a cheap card and MTU=1500. Ben's message about his tweaks is encouraging. Pity the P3 is so piss-poor.
Regards,
Richard.... Permanent: rgooch@atnf.csiro.au Current: rgooch@ras.ucalgary.ca - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |