From mboxrd@z Thu Jan 1 00:00:00 1970 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 7A3BE363 for ; Sun, 30 Jul 2023 13:46:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8C39AC433C7; Sun, 30 Jul 2023 13:46:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1690724799; bh=YPrmyB5tQxEByL25F26LpxKBO3P6pu2hL7l8PcwZwJ4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UEBYuvFBtCgdf40VXXxlPktePICoF6jJoBug4+B/PechPy1OZzPrM2ZqUBfXvgIgr f/YqzliN58wnJBRNNT0NEwKIDTFtpjJxwh/iHI+pi7ak1DALSCsUDIUluXRINubWUs oaEmjBTm8NzPPEHZzIkHs04cdaI5bTYC/B2N4Q9wBroWwrUsAjoBtAaY3HOTSlx1bH /9EiBYo4G1InlaGoe90beSWpTumRqELk5LAPP9CEbMtJqXc+CxkL/fZKy2nw7f0xI0 hZkKxxfW+9972r1HypuU7i0pDqBgjZg1r27+2DxeY5b9b7vSGhn1fXH7sI/v0bu/mT T4CmXUtDNmfJg== 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 , Yafang Shao Subject: [PATCHv5 bpf-next 25/28] selftests/bpf: Add uprobe_multi usdt bench test Date: Sun, 30 Jul 2023 15:42:20 +0200 Message-ID: <20230730134223.94496-26-jolsa@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230730134223.94496-1-jolsa@kernel.org> References: <20230730134223.94496-1-jolsa@kernel.org> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Adding test that attaches 50k usdt probes in usdt_multi binary. After the attach is done we run the binary and make sure we get proper amount of hits. With current uprobes: # perf stat --null ./test_progs -n 254/6 #254/6 uprobe_multi_test/bench_usdt:OK #254 uprobe_multi_test:OK Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED Performance counter stats for './test_progs -n 254/6': 1353.659680562 seconds time elapsed With uprobe_multi link: # perf stat --null ./test_progs -n 254/6 #254/6 uprobe_multi_test/bench_usdt:OK #254 uprobe_multi_test:OK Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED Performance counter stats for './test_progs -n 254/6': 0.322046364 seconds time elapsed Signed-off-by: Jiri Olsa --- .../bpf/prog_tests/uprobe_multi_test.c | 39 +++++++++++++++++++ .../selftests/bpf/progs/uprobe_multi_usdt.c | 16 ++++++++ 2 files changed, 55 insertions(+) create mode 100644 tools/testing/selftests/bpf/progs/uprobe_multi_usdt.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 56c2062af1c9..19a66431a61f 100644 --- a/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c +++ b/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c @@ -4,6 +4,7 @@ #include #include "uprobe_multi.skel.h" #include "uprobe_multi_bench.skel.h" +#include "uprobe_multi_usdt.skel.h" #include "bpf/libbpf_internal.h" #include "testing_helpers.h" @@ -234,6 +235,42 @@ static void test_bench_attach_uprobe(void) printf("%s: detached in %7.3lfs\n", __func__, detach_delta); } +static void test_bench_attach_usdt(void) +{ + struct uprobe_multi_usdt *skel = NULL; + long attach_start_ns, attach_end_ns; + long detach_start_ns, detach_end_ns; + double attach_delta, detach_delta; + + skel = uprobe_multi_usdt__open_and_load(); + if (!ASSERT_OK_PTR(skel, "uprobe_multi__open")) + goto cleanup; + + attach_start_ns = get_time_ns(); + + skel->links.usdt0 = bpf_program__attach_usdt(skel->progs.usdt0, -1, "./uprobe_multi", + "test", "usdt", NULL); + if (!ASSERT_OK_PTR(skel->links.usdt0, "bpf_program__attach_usdt")) + goto cleanup; + + attach_end_ns = get_time_ns(); + + system("./uprobe_multi usdt"); + + ASSERT_EQ(skel->bss->count, 50000, "usdt_count"); + +cleanup: + detach_start_ns = get_time_ns(); + uprobe_multi_usdt__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")) @@ -246,4 +283,6 @@ void test_uprobe_multi_test(void) test_link_api(); if (test__start_subtest("bench_uprobe")) test_bench_attach_uprobe(); + if (test__start_subtest("bench_usdt")) + test_bench_attach_usdt(); } diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_usdt.c b/tools/testing/selftests/bpf/progs/uprobe_multi_usdt.c new file mode 100644 index 000000000000..9e1c33d0bd2f --- /dev/null +++ b/tools/testing/selftests/bpf/progs/uprobe_multi_usdt.c @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include "vmlinux.h" +#include +#include + +char _license[] SEC("license") = "GPL"; + +int count; + +SEC("usdt") +int usdt0(struct pt_regs *ctx) +{ + count++; + return 0; +} -- 2.41.0