Messages in this thread |  | | Date | Fri, 09 Jun 2006 17:27:52 -0700 | | From | Rick Jones <> | | Subject | Re: [RFC] [patch 5/6] [Network namespace] ipv4 isolation |
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James Morris wrote: > On Fri, 9 Jun 2006, dlezcano@fr.ibm.com wrote: > > >>When an outgoing packet has the loopback destination addres, the >>skbuff is filled with the network namespace. So the loopback packets >>never go outside the namespace. This approach facilitate the migration >>of loopback because identification is done by network namespace and >>not by address. The loopback has been benchmarked by tbench and the >>overhead is roughly 1.5 % > > > I think you'll need to make it so this code has zero impact when not > configured.
Indeed, and over stuff other than loopback too. I'll not so humbly suggest :) netperf TCP_STREAM and TCP_RR figures _with_ CPU utilization/service demand measures.
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