tools/testing/selftests/bpf/progs/ringbuf_bench.c
Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/progs/ringbuf_bench.c
File Facts
- System
- Linux kernel
- Corpus path
tools/testing/selftests/bpf/progs/ringbuf_bench.c- Extension
.c- Size
- 1593 bytes
- Lines
- 73
- Domain
- Support Tooling And Documentation
- Bucket
- tools
- Inferred role
- Support Tooling And Documentation: implementation source
- Status
- source implementation candidate
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
stdbool.hlinux/bpf.hstdint.hbpf/bpf_helpers.hbpf_misc.h
Detected Declarations
function get_flagsfunction bench_ringbuf
Annotated Snippet
if (!sample) {
__sync_add_and_fetch(&dropped, 1);
} else {
*sample = sample_val;
flags = get_flags();
bpf_ringbuf_submit(sample, flags);
if (bench_producer)
__sync_add_and_fetch(&hits, 1);
}
}
} else {
for (i = 0; i < batch_cnt; i++) {
flags = get_flags();
if (bpf_ringbuf_output(&ringbuf, &sample_val,
sizeof(sample_val), flags))
__sync_add_and_fetch(&dropped, 1);
else if (bench_producer)
__sync_add_and_fetch(&hits, 1);
}
}
return 0;
}
Annotation
- Immediate include surface: `stdbool.h`, `linux/bpf.h`, `stdint.h`, `bpf/bpf_helpers.h`, `bpf_misc.h`.
- Detected declarations: `function get_flags`, `function bench_ringbuf`.
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.