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authorDavid S. Miller <davem@davemloft.net>2021-11-16 16:10:35 +0300
committerDavid S. Miller <davem@davemloft.net>2021-11-16 16:10:35 +0300
commit6fcc06205c15bf1bb90896efdf5967028c154aba (patch)
tree9485fbb54c44a7933e5e7904aaebaedbe0f82907 /net/ipv6/esp6_offload.c
parent3ad4b7c81a992463c29ae130332c217607fe4452 (diff)
parent43f51df4172955971ef5498f09308a9dc0291766 (diff)
downloadlinux-6fcc06205c15bf1bb90896efdf5967028c154aba.tar.xz
Merge branch 'tcp-optimizations'
Eric Dumazet says: ==================== tcp: optimizations for linux-5.17 Mostly small improvements in this series. The notable change is in "defer skb freeing after socket lock is released" in recvmsg() (and RX zerocopy) The idea is to try to let skb freeing to BH handler, whenever possible, or at least perform the freeing outside of the socket lock section, for much improved performance. This idea can probably be extended to other protocols. Tests on a 100Gbit NIC Max throughput for one TCP_STREAM flow, over 10 runs. MTU : 1500 (1428 bytes of TCP payload per MSS) Before: 55 Gbit After: 66 Gbit MTU : 4096+ (4096 bytes of TCP payload, plus TCP/IPv6 headers) Before: 82 Gbit After: 95 Gbit ==================== Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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