udp/ipv6 optimisations
Status from this message: This series was applied to netdev/net-next.git (master)
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Patches in v2 All 10 applied
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/10 | ipv6: optimise dst refcounting on skb initnet/ | +10 | 0 replies | Applied |
| 2/10 | udp6: shuffle up->pending AF_INET bitsnet/ | +2 | 0 replies | Applied |
| 3/10 | ipv6: remove daddr temp buffer in __ip6_make_skbnet/ | +3 | 0 replies | Applied |
| 4/10 | ipv6: clean up cork setup/releasenet/ | +21 | 0 replies | Applied |
| 5/10 | ipv6: don't zero inet_cork_full::fl after usenet/ net/ | +2 | 0 replies | Applied |
| 6/10 | ipv6: pass full cork into __ip6_append_data()net/ | +4 | 0 replies | Applied |
| 7/10 | udp6: pass flow in ip6_make_skb together with corkinclude/ net/ net/ | +13 | 0 replies | Applied |
| 8/10 | udp6: don't make extra copies of iflownet/ | +42 | 0 replies | Applied |
| 9/10 | ipv6: optimise dst refcounting on cork initnet/ net/ | +11 | 0 replies | Applied |
| 10/10 | ipv6: partially inline ipv6_fixup_optionsinclude/ net/ | +14 | 0 replies | Applied |
Reviews trailers per patch
None of the 10 patches has a Reviewed-by or Acked-by of their own; the series has one for all of them.
| Patch | Willem de Bruijn |
|---|---|
| Series | R-b |
| 1/10 | |
| 2/10 | |
| 3/10 | |
| 4/10 | |
| 5/10 | |
| 6/10 | |
| 7/10 | |
| 8/10 | |
| 9/10 | |
| 10/10 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH net-next v2 00/10] udp/ipv6 optimisations
Shed some weight from udp/ipv6. Zerocopy benchmarks over dummy showed ~5% tx/s improvement, should be similar for small payload non-zc cases.
The performance comes from killing 4 atomics and a couple of big struct memcpy/memset. 1/10 removes a pair of atomics on dst refcounting for cork->skb setup, 9/10 saves another pair on cork init. 5/10 and 8/10 kill extra 88B memset and memcpy respectively.
v2: add a comment about setting dst early in ip6_setup_cork()
drop non-udp patches for now
add patch 10
Pavel Begunkov (10):
ipv6: optimise dst refcounting on skb init
udp6: shuffle up->pending AF_INET bits
ipv6: remove daddr temp buffer in __ip6_make_skb
ipv6: clean up cork setup/release
ipv6: don't zero inet_cork_full::fl after use
ipv6: pass full cork into __ip6_append_data()
udp6: pass flow in ip6_make_skb together with cork
udp6: don't make extra copies of iflow
ipv6: optimise dst refcounting on cork init
ipv6: partially inline ipv6_fixup_options
include/net/ipv6.h | 14 ++++-- net/ipv6/exthdrs.c | 8 ++-- net/ipv6/ip6_output.c | 99 ++++++++++++++++++++++------------------ net/ipv6/udp.c | 103 ++++++++++++++++++++---------------------- 4 files changed, 118 insertions(+), 106 deletions(-)
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2.34.1