[ovs-discuss] ovs memory requirements / limits

Madhusudan Challa challa at ngfw.org
Tue May 17 21:56:02 UTC 2011

I am trying to understand ovf memory requirements and flow limits for the
vswitchd daemon and the ovs kernel module. Specifically :

1. memory taken in userspace and kernel per flow control rule.
2. limits on # of flows control rules.
3. any additional memory taken by datapath when packet arrives.
4. # of packets that could be buffered in user space pending reply from

Any numbers based on experiments you done will be helpful. If I were to do
this myself, besides profiling the code, was curious if these stats are
already being collected somewhere similar to the flow count stats.

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