[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] I/O descriptor ring size bottleneck?
> BTW, I'd actually be very suspicious of dummynet's ability to operate at > 500Mb/s. It's possible that the reduced bandwidth is due to some bad > interaction between burstiness caused by Xen's context switching and > dummynet. Could you elaborate a bit more on this? Even if dummynet can't operate at 500Mbps, we should atleast see the same degradation in performance right? > Are your dom0 and domU running on the same processor? Could you try > using hyperthreading or SMP? Yep, same processor. For various other reasons, I wanted to avoid SMP, so I was running with the nosmp option. I'll try running with SMP and post an update. > Have you checked that domU <-> domU performance is good on the LAN with > a single TCP connection? I had a long time back, but I think that was with SMP. I'll check again. -- Diwaker Gupta http://resolute.ucsd.edu/diwaker ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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