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authorDavid S. Miller <davem@davemloft.net>2016-11-16 13:40:59 -0500
committerDavid S. Miller <davem@davemloft.net>2016-11-16 13:40:59 -0500
commitfc3f9146cec6ced8866071f711aba3f356af65f6 (patch)
tree51efb65cae00ee88ec39c9e41569a95c0f8526f7 /tools/perf/scripts/python/export-to-postgresql.py
parentbpf: Fix compilation warning in __bpf_lru_list_rotate_inactive (diff)
parentbnx2x: switch to napi_complete_done() (diff)
downloadlinux-dev-fc3f9146cec6ced8866071f711aba3f356af65f6.tar.xz
linux-dev-fc3f9146cec6ced8866071f711aba3f356af65f6.zip
Merge branch 'busypoll-preemption-and-other-optimizations'
Eric Dumazet says: ==================== net: busy-poll: allow preemption and other optimizations It is time to have preemption points in sk_busy_loop() and improve its scalability. Also napi_complete() and friends can tell drivers when it is safe to not re-enable device interrupts, saving some overhead under high busy polling. mlx4 and bnx2x are changed accordingly, to show how this busy polling status can be exploited by drivers. Next steps will implement Zach Brown suggestion, where NAPI polling would be enabled all the time for some chosen queues. This is needed for efficient epoll() support anyway. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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