kernel/tools/testing/selftests/bpf/benchs/bench_sockmap.c, branch linux-rolling-stable

selftests/bpf: Fix incorrect array size calculation

2025-11-13T20:36:49Z

[ Upstream commit f85981327a90c51e76f60e073cb6648b2f167226 ] The loop in bench_sockmap_prog_destroy() has two issues: 1. Using 'sizeof(ctx.fds)' as the loop bound results in the number of bytes, not the number of file descriptors, causing the loop to iterate far more times than intended. 2. The condition 'ctx.fds[0] > 0' incorrectly checks only the first fd for all iterations, potentially leaving file descriptors unclosed. Change it to 'ctx.fds[i] > 0' to check each fd properly. These fixes ensure correct cleanup of all file descriptors when the benchmark exits. Reported-by: Dan Carpenter Signed-off-by: Jiayuan Chen Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20250909124721.191555-1-jiayuan.chen@linux.dev Closes: https://lore.kernel.org/bpf/aLqfWuRR9R_KTe5e@stanley.mountain/ Signed-off-by: Sasha Levin

selftest/bpf/benchs: Remove duplicate sys/types.h header

2025-04-15T18:03:57Z

./tools/testing/selftests/bpf/benchs/bench_sockmap.c: sys/types.h is included more than once. Reported-by: Abaci Robot Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=20436 Signed-off-by: Jiapeng Chong Signed-off-by: Martin KaFai Lau Link: https://patch.msgid.link/20250415061459.11644-1-jiapeng.chong@linux.alibaba.com

selftest/bpf/benchs: Add benchmark for sockmap usage

2025-04-10T02:59:00Z

Add TCP+sockmap-based benchmark. Since sockmap's own update and delete operations are generally less critical, the performance of the fast forwarding framework built upon it is the key aspect. Also with cgset/cgexec, we can observe the behavior of sockmap under memory pressure. The benchmark can be run with: ''' ./bench sockmap -c 2 -p 1 -a --rx-verdict-ingress ''' In the future, we plan to move socket_helpers.h out of the prog_tests directory to make it accessible for the benchmark. This will enable better support for various socket types. Signed-off-by: Jiayuan Chen Link: https://lore.kernel.org/r/20250407142234.47591-5-jiayuan.chen@linux.dev Signed-off-by: Alexei Starovoitov