ebpf iterators
summary
eBPF iterators let users dump kernel objects (tasks, files, maps, BPF programs, network objects) by opening and reading a file backed by an iterator; programs load with libbpf, attach via bpf_link + bpf_iter_create, and output is read from the iterator FD. Examples include bpf trace adding iter_task and iter_task_file, bpftool’s ether pin to pin to bpffs, and a planned switch in perf for faster task collection — current limit: iteration is not yet parallel.
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chapters (8)
- 0:00Start
- 0:12Ebpf Iterators
- 0:52Ebpf Iterator
- 3:41Load Ebpf Program to the Kernel
- 12:53Bpf Trace
- 14:03Examples
- 14:54Task File Iterator
- 19:28Bpf Preload
