From patchwork Thu Jul 20 11:35:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Olsa X-Patchwork-Id: 13320378 X-Patchwork-Delegate: bpf@iogearbox.net Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 676E3174E9 for ; Thu, 20 Jul 2023 11:39:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 56260C433C8; Thu, 20 Jul 2023 11:39:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1689853193; bh=QZLZ1UkOLo9H98kcIawBe9i8KRU/GlG4NzN0fHBUPnE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oLeW8kzKoKC1KDW69xWvX8PhK3FmvY9yBacyhP/V1Yh37R439KV8MqrncUJAbtGYx cqswbPMnn4cLIkBCo2JPPuiy41p0otmwZL7+h5JVglqz6pzXfeso6ZDpyfM+YaKRwu JWGTb+Kr6OKl1JhwG3vvvw9v5CmXnrnYX8htfb5xn09ROorMlDwI7z/DMwiZ28o2Dz 9jh11dndIUeMGkLFpYRVmkA7RqVSOkWY8NugMnQPsFAAJM1U9emlkaeY3aulqNbxxc BWGGOoAg18nxBBmNeIXeDsTeJ0b6Jxd6pQGS8rG6LIhWaiFSD7Zt6rZXAEqrl29MHI 44dORbWOUeI/g== From: Jiri Olsa To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko Cc: bpf@vger.kernel.org, Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo Subject: [PATCHv4 bpf-next 23/28] selftests/bpf: Add uprobe_multi bench test Date: Thu, 20 Jul 2023 13:35:45 +0200 Message-ID: <20230720113550.369257-24-jolsa@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230720113550.369257-1-jolsa@kernel.org> References: <20230720113550.369257-1-jolsa@kernel.org> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net Adding test that attaches 50k uprobes in uprobe_multi binary. After the attach is done we run the binary and make sure we get proper amount of hits. The resulting attach/detach times on my setup: test_bench_attach_uprobe:PASS:uprobe_multi__open 0 nsec test_bench_attach_uprobe:PASS:uprobe_multi__attach 0 nsec test_bench_attach_uprobe:PASS:uprobes_count 0 nsec test_bench_attach_uprobe: attached in 0.346s test_bench_attach_uprobe: detached in 0.419s #262/5 uprobe_multi_test/bench_uprobe:OK Signed-off-by: Jiri Olsa --- .../bpf/prog_tests/uprobe_multi_test.c | 40 +++++++++++++++++++ .../selftests/bpf/progs/uprobe_multi_bench.c | 15 +++++++ 2 files changed, 55 insertions(+) create mode 100644 tools/testing/selftests/bpf/progs/uprobe_multi_bench.c diff --git a/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c index e460fd4d370d..56c2062af1c9 100644 --- a/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c +++ b/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c @@ -3,7 +3,9 @@ #include #include #include "uprobe_multi.skel.h" +#include "uprobe_multi_bench.skel.h" #include "bpf/libbpf_internal.h" +#include "testing_helpers.h" static char test_data[] = "test_data"; @@ -196,6 +198,42 @@ static void test_link_api(void) free(offsets); } +static void test_bench_attach_uprobe(void) +{ + long attach_start_ns, attach_end_ns = 0; + struct uprobe_multi_bench *skel = NULL; + long detach_start_ns, detach_end_ns; + double attach_delta, detach_delta; + int err; + + skel = uprobe_multi_bench__open_and_load(); + if (!ASSERT_OK_PTR(skel, "uprobe_multi__open")) + goto cleanup; + + attach_start_ns = get_time_ns(); + + err = uprobe_multi_bench__attach(skel); + if (!ASSERT_OK(err, "uprobe_multi__attach")) + goto cleanup; + + attach_end_ns = get_time_ns(); + + system("./uprobe_multi bench"); + + ASSERT_EQ(skel->bss->count, 50000, "uprobes_count"); + +cleanup: + detach_start_ns = get_time_ns(); + uprobe_multi_bench__destroy(skel); + detach_end_ns = get_time_ns(); + + attach_delta = (attach_end_ns - attach_start_ns) / 1000000000.0; + detach_delta = (detach_end_ns - detach_start_ns) / 1000000000.0; + + printf("%s: attached in %7.3lfs\n", __func__, attach_delta); + printf("%s: detached in %7.3lfs\n", __func__, detach_delta); +} + void test_uprobe_multi_test(void) { if (test__start_subtest("skel_api")) @@ -206,4 +244,6 @@ void test_uprobe_multi_test(void) test_attach_api_syms(); if (test__start_subtest("link_api")) test_link_api(); + if (test__start_subtest("bench_uprobe")) + test_bench_attach_uprobe(); } diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_bench.c b/tools/testing/selftests/bpf/progs/uprobe_multi_bench.c new file mode 100644 index 000000000000..5367f6105e30 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/uprobe_multi_bench.c @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include + +char _license[] SEC("license") = "GPL"; + +int count; + +SEC("uprobe.multi/./uprobe_multi:uprobe_multi_func_*") +int uprobe_bench(struct pt_regs *ctx) +{ + count++; + return 0; +}