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From: kumaraparameshwaran rathinavel <kumaraparamesh92@gmail.com>
To: dev@dpdk.org, hujiayu.hu@foxmail.com
Subject: RFC - GRO Flowlookup Optimisation
Date: Wed, 22 Nov 2023 11:31:35 +0530	[thread overview]
Message-ID: <CANxNyatFQg6EH8zsy2za0meuDXqj1K8TkCEpcLBkzdF3LgXPwQ@mail.gmail.com> (raw)

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Hi Folks,

The current GRO code uses an unoptimised version of flow lookup where each
flow in the table is iterated over during the flow matching process. For a
rte_gro_reassemble_burst in lightweight mode this would not cause much of
an impact. But with rte_gro_reassemble which is done with a timeout
interval, this causes higher CPU utilisation during throughput tests. The
proposal here is to use a Hash based flowtable which could make use of the
rte_hash table implementation in DPDK. There could be a hash table for each
of the GRO types. The lookup function and the key could be different for
each one of the types. If there is a consensus that this could have a
better performance impact I would work on an initial patch set. Please let
me know your thoughts.

Thanks,
Kumara.

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             reply	other threads:[~2023-11-22  6:01 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-22  6:01 kumaraparameshwaran rathinavel [this message]
2023-11-22 10:35 ` Ferruh Yigit
2023-11-22 15:35   ` kumaraparameshwaran rathinavel
2023-11-22 15:14 胡嘉瑜
2023-11-22 15:36 ` kumaraparameshwaran rathinavel

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