search for: 550mbit

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2006 Jan 27
0
dom0 packet drops caused by domU cpu load
...-> eth0 <- dom0 -> eth1 <- Spirent Testflow was a simple unidirectional UDP stream from left to right with differen paket sizes. Throughput is measured by Spirent in highest Mbit flow without packet drops... Dom0 as gateway with no virtual instances and 256 packet size performes with 550Mbit. After starting three virtual instances with light load performance drops to 320Mbit! Even worser was the following installation with an virtual instance as gateway: Spirent -> eth0 <- dom0 -> vif1.0 <- domU -> vif1.1 <- dom0 ->eth1 <- Spirent eth0 and vif1.0 are bridged...