Re: [PATCH net-next 2/3] tcp: add one skb cache for tx

2019-03-22 Thread kbuild test robot
Hi Eric, I love your patch! Perhaps something to improve: [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Eric-Dumazet/net-convert-rps_needed-and-rfs_needed-to-new-static-branch-api/20190322-211954 reproduce: make htmldocs All warnings (new ones pr

[PATCH net-next 2/3] tcp: add one skb cache for tx

2019-03-21 Thread Eric Dumazet
On hosts with a lot of cores, RPC workloads suffer from heavy contention on slab spinlocks. 20.69% [kernel] [k] queued_spin_lock_slowpath 5.64% [kernel] [k] _raw_spin_lock 3.83% [kernel] [k] syscall_return_via_sysret 3.48% [kernel] [k] __entry_text_s