Hi As part of our packet filtering project we did some performance measurements where we do up to 180kps with NAPI drivers. see more: http://www.cs.auc.dk/~mixxel/cf/experiments.html Cheers Mikkel Quoting Surya Srinivasan <surya_srinivasan@hotmail.com>: > > > We are planning to use a linux PC as a router in our lab. I was wondering if > anyone has recently measured the forwarding rate using a standard PC (say > Pentium)? Have there been any changes to the kernel to improve the > forwarding rate? > > The best performance I have seen so far is with the Click modular router ( > http://www.pdos.lcs.mit.edu/papers/click:tocs00/paper.pdf ). According to > their study on a 700Mhz Pentium (64 byte packets) > Linux does 75kpps > Linux polling 300kpps (Polling amortizes the device handling overhead over > several packets when packet rates are high is my understanding. It also > avoids the receive livelock issue). > Is receive livelock still an issue with Linux today? Or is this avoided by > throttling the receive interfaces? > > Is there anyone using polling mode for better forwarding rates? > > I have been looking for documentation in this regard and would appreciate > any pointers. > > If there is a more appropriate list for such questions kindly point me to > the right list. > > thanks > Surya > > _________________________________________________________________ > Is your PC infected? Get a FREE online computer virus scan from McAfee® > Security. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 > > - > : 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 > - : 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
