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authorJian Wen <[email protected]>2023-07-11 11:24:05 +0800
committerJakub Kicinski <[email protected]>2023-07-12 14:47:31 -0700
commit9f4a7c930284bf2b5b84d3636a8e88857149328f (patch)
treef57056fb61c4bec3ed731a3b8654e26adfabb34e /drivers/fpga/fpga-mgr.c
parente0f0a5db5f8c413cbbf48607f711c2a21023ee66 (diff)
tcp: add a scheduling point in established_get_first()
Kubernetes[1] is going to stick with /proc/net/tcp for a while. This commit reduces the scheduling latency introduced by established_get_first(), similar to commit acffb584cda7 ("net: diag: add a scheduling point in inet_diag_dump_icsk()"). In our environment, the scheduling latency affects the performance of latency-sensitive services like Redis. Changes in V2 : - call cond_resched() before checking if a bucket is empty as suggested by Eric Dumazet - removed the delay of synchronize_net() from the commit message [1] https://github.com/google/cadvisor/blob/v0.47.2/container/libcontainer/handler.go#L130 Signed-off-by: Jian Wen <[email protected]> Reviewed-by: Simon Horman <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-mgr.c')
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