bpf, sockmap: Improve performance with CPU affinity #8857
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Since the helper list is effectively frozen and the existing helpers cannot be extended, we add a new kfunc instead which simply set the redir_cpu to psock. The new kfunc is used to set redir_cpu to psock. All these changes conform to the kfuncs.rst documentation. Signed-off-by: Jiayuan Chen <[email protected]>
Introduce a sk_psock_schedule_delayed_work() wrapper function, which calls schedule_delayed_work_on() to specify the CPU for running the workqueue if the BPF program has set the redirect CPU using bpf_sk_skb_set_redirect_cpu(). Otherwise, it falls back to the original logic. Signed-off-by: Jiayuan Chen <[email protected]>
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Upstream branch: 224ee86 |
Add cpu-affinity for sockmap bench. Also add no-verify args to avoid validating data for performance enhancements. Signed-off-by: Jiayuan Chen <[email protected]>
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Pull request for series with
subject: bpf, sockmap: Improve performance with CPU affinity
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=957610