[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-users] Expected network throughput
Hi, I have just started to work with Xen and have a question regarding the expected network throughput. Here is my configuration: Processor: 2.8 GHz Intel Celeron (Socket 775) Motherboard: Gigabyte 8I865GVMF-775 Memory: 1.5 GB Basic system: Kubuntu 6.06 Dapper Drake Xen version: 3.02 (Latest 3.0 stable download) I get the following iperf results: Src Dest Throughput Dom0 Dom0 (127.0.0.1) 1.8 Gbits DomU DomU (127.0.0.1) 2.1 Gbits Dom0 DomU 125 Mbits DomU Dom0 80 Mbits DomU DomU 55 Mbits If I go DomU-DomU-DomU then I get about 35 Mbits. For all the above tests, the CPU load is 100%. I have experienced the tcp checksum corruption issue, so I have use the "ethtool -K iface tx off" fix. I have also run "xm sched-sedf 0 0 0 0 1 1" to help improve the performance (as recommended on one of the mailing list posts). With this class of processor and memory, I would have hoped that the network performance between DomU instances was better. Is this an unreasonable hope, or would I get better performance moving to the 3.0-Testing release (and would this fix the TCP checksum corruption)? Thanks, Roger _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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