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On every packet OVS needs to lookup flow-table with every mask until it finds a match. The packet flow-key is first masked with mask in the list and then the masked key is looked up in flow-table. Therefore number of masks can affect packet processing performance. Following patch adds mask index to mask cache from last pakcet lookup in same flow. Index of mask is stored in this cache. This cache is searched by 5 tuple hash (skb rxhash). Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Thomas Graf <tgraf@redhat.com>
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Pravin B Shelar
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Apr 29, 2014
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