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| author | Paolo Abeni <pabeni@redhat.com> | 2025-03-18 13:40:33 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-03-18 13:40:34 +0300 |
| commit | aedfbe251e1c56034cb6ffd87eabe5895b31ae5d (patch) | |
| tree | 3d1bf81f61f5a67fa29b27bfbf10b5dece0a0e6e /net/core/dev_api.c | |
| parent | f5825e79b2b7b1b0912c219d24cd7aa3eb3e300d (diff) | |
| parent | 311b36574ceaccfa3f91b74054a09cd4bb877702 (diff) | |
| download | linux-aedfbe251e1c56034cb6ffd87eabe5895b31ae5d.tar.xz | |
Merge branch 'udp_tunnel-gro-optimizations'
Paolo Abeni says:
====================
udp_tunnel: GRO optimizations
The UDP tunnel GRO stage is source of measurable overhead for workload
based on UDP-encapsulated traffic: each incoming packets requires a full
UDP socket lookup and an indirect call.
In the most common setups a single UDP tunnel device is used. In such
case we can optimize both the lookup and the indirect call.
Patch 1 tracks per netns the active UDP tunnels and replaces the socket
lookup with a single destination port comparison when possible.
Patch 2 tracks the different types of UDP tunnels and replaces the
indirect call with a static one when there is a single UDP tunnel type
active.
I measure ~5% performance improvement in TCP over UDP tunnel stream
tests on top of this series.
v3: https://lore.kernel.org/netdev/cover.1741632298.git.pabeni@redhat.com/
v2: https://lore.kernel.org/netdev/cover.1741338765.git.pabeni@redhat.com/
v1: https://lore.kernel.org/netdev/cover.1741275846.git.pabeni@redhat.com/
====================
Link: https://patch.msgid.link/cover.1741718157.git.pabeni@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/core/dev_api.c')
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