On Mon, 2007-08-10 at 15:29 +0530, Krishna Kumar2 wrote: > Hi Jamal, > > If you don't mind, I am trying to run your approach vs mine to get some > results for comparison.
Please provide an analysis when you get the results. IOW, explain why one vs the other get different results. > For starters, I am having issues with iperf when using your infrastructure > code with > my IPoIB driver - about 100MB is sent and then everything stops for some > reason. I havent tested with iperf in a while. Can you post the netstat on both sides when the driver stops? It does sound like a driver issue to me. > The changes in the IPoIB driver that I made to support batching is to set > BTX, set > xmit_win, and dynamically reduce xmit_win on every xmit > and increase xmit_win on every xmit completion. >From driver howto: --- This variable should be set during xmit path shutdown(netif_stop), wakeup(netif_wake) and ->hard_end_xmit(). In the case of the first one the value is set to 1 and in the other two it is set to whatever the driver deems to be available space on the ring. ---- > Is there anything else that is required from the > driver? Your driver needs to also support wake thresholding. I will post the driver howto later today. cheers, jamal - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
