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.

Dependency Surface

Detected Declarations

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

Implementation Notes