Merge branch 'udp-ipv6-use-scratch-helpers'

Browse source

Paolo Abeni says:

====================
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.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

David S. Miller 2017-06-27 15:43:57 -04:00

parent d97af30f61 67a51780ae

commit ed9208be8d

3 changed files with 70 additions and 65 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

61

include/net/udp.h

View file

60

net/ipv4/udp.c

View file

14

net/ipv6/udp.c

View file