ipv6: udp: exploit dev_scratch helpers
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- v1 Latest2 patches 1 replyIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | udp: move scratch area helpers into the include fileinclude/ net/ | +61 | 0 replies | |
| 2/2 | ipv6: udp: leverage scratch area helpersnet/ | +9 | 0 replies |
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Cover letter [PATCH net-next 0/2] ipv6: udp: exploit dev_scratch helpers
When bringing in the recent cache optimization for the UDP protocol, I forgot to leverage the newly introduced scratched area helpers in the UDPv6 code path. As a result, the UDPv6 implementation suffers some unnecessary performance penality when compared to v4.
This series aim to bring back UDPv6 on equal footing in respect to v4. The first patch moves the shared helpers to the common include files, while the second uses them in the UDPv6 code.
This gives 5-8% performance improvement for a system under flood with small UDPv6 packets. The performance delta is less than the one reported on the original patch set because the UDPv6 code path already leveraged some of the optimization.
Paolo Abeni (2):
udp: move scratch area helpers into the include file
ipv6: udp: leverage scratch area helpers
include/net/udp.h | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ net/ipv4/udp.c | 60 ------------------------------------------------------ net/ipv6/udp.c | 14 ++++++++----- 3 files changed, 70 insertions(+), 65 deletions(-)
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2.9.4