From nobody Mon Apr 13 18:45:45 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2529EC433FE for ; Wed, 16 Nov 2022 06:46:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231135AbiKPGqn (ORCPT ); Wed, 16 Nov 2022 01:46:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56302 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229491AbiKPGqk (ORCPT ); Wed, 16 Nov 2022 01:46:40 -0500 Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C1C8286DA; Tue, 15 Nov 2022 22:46:39 -0800 (PST) Received: by mail-pf1-x431.google.com with SMTP id v28so16592944pfi.12; Tue, 15 Nov 2022 22:46:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=l9EiJ25n++7znh9J7WxtOwiU22GdLesWLAuGdvSt8Mk=; b=fXKYH+vM/bjons48DuHzNEYQqS6Kn8v+CpylJCKVpmNNjeoTWJ4ndYmHca05b3HEj6 QZijJKvtNLL09lgcDSK+U2IEwRcLbWkAS3ReVY7gV4/0+e25MEJ1zWsxjSH4bZzjXH3G AKsRDBBHkL2IcqmP2j0qB9I+TovwOE4RmrRL3rkKlYtTbzlh0BnFRjU9BoMAsnd3ACYD yAnvSfftOtiFKL3AZCCdvSs3k6U1j4cMkgT5J0Swy2CysQmpNz+C0PZNQytoSPvxnbBm kX45aPrGhXjs0vc8toSYZrfKwT3AlM8H4sQmXlIAdD2HLdgLRz92LitFQoXIuCU0P1Hb ZXvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=l9EiJ25n++7znh9J7WxtOwiU22GdLesWLAuGdvSt8Mk=; b=e8RHn/ma/88NFvsusLIh8sWyYXWWDRmqRp9HSOUxUR3CnblI5t40l87F7U8yUqSbTA 5zZEFQ7nSC1oLY4fPw7nsa0XO461HELrd1+LIzBleWGNS0z+9IXAiTjakG0VUTDLmYzO BpJsSRl22edFVf5E60QiaQg4YMCFbrG2hZGfxlL6jEcyPm3O7W40vt8o2E5pkMRbQ+iw 6VLLMTREYx7WNIr1JaL22u63qvWXjKH6DoERQy1K9Gvm9zyEuoosWJFDN86lOvx9XHtJ zcWNCv4p9MjTIQIDKLDXB+N2H2EXswsSiBqHHHvn4RVP+d7hFQ1jSYmEMEFqStAYlnvf pGwA== X-Gm-Message-State: ANoB5pn/iI0qZAKMdMv+jkHTdIRECNI0LDn/bZ7ZEOAwTHkV+VTij4Zx yf00AkS1AI2BPq3F0iLHAKE= X-Google-Smtp-Source: AA0mqf6ggRaXMeqRzBAY6BeqyR6T4ZDEU0UWbcwnNbGSk0R4lnaO0o3uB8vu5/AIVP1byFnz1O8CRA== X-Received: by 2002:a05:6a00:4009:b0:56e:7b62:bba with SMTP id by9-20020a056a00400900b0056e7b620bbamr21786967pfb.55.1668581198601; Tue, 15 Nov 2022 22:46:38 -0800 (PST) Received: from localhost.localdomain ([14.5.161.132]) by smtp.gmail.com with ESMTPSA id g190-20020a6252c7000000b0057255b82bd1sm3820012pfb.217.2022.11.15.22.46.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Nov 2022 22:46:38 -0800 (PST) From: Kang Minchul To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko Cc: Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , bpf@vger.kernel.org, linux-kernel@vger.kernel.org, Kang Minchul Subject: [PATCH] samples, bpf: Add duration option D for sampleip Date: Wed, 16 Nov 2022 15:46:31 +0900 Message-Id: <20221116064631.16224-1-tegongkang@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Although sampleip program can handle three options, (-F for frequency, duration, and -h for help) currently there is no independent option for duration. This patch adds option -D for duration like below: $ sudo ./samples/bpf/sampleip -h USAGE: sampleip [-F freq] [-D duration] -F freq # sample frequency (Hertz), default 99 -D duration # sampling duration (seconds), default 5 $ sudo ./samples/bpf/sampleip -F 120 Sampling at 120 Hertz for 5 seconds. Ctrl-C also ends. ADDR KSYM COUNT ... $ sudo ./samples/bpf/sampleip -D 7 Sampling at 99 Hertz for 7 seconds. Ctrl-C also ends. ADDR KSYM COUNT ... $ sudo ./samples/bpf/sampleip -F 120 -D 7 Sampling at 120 Hertz for 7 seconds. Ctrl-C also ends. ADDR KSYM COUNT ... Signed-off-by: Kang Minchul --- samples/bpf/sampleip_user.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/samples/bpf/sampleip_user.c b/samples/bpf/sampleip_user.c index 921c505bb567..ce6aadd496e1 100644 --- a/samples/bpf/sampleip_user.c +++ b/samples/bpf/sampleip_user.c @@ -28,9 +28,9 @@ static int nr_cpus; =20 static void usage(void) { - printf("USAGE: sampleip [-F freq] [duration]\n"); - printf(" -F freq # sample frequency (Hertz), default 99\n"); - printf(" duration # sampling duration (seconds), default 5\n"); + printf("USAGE: sampleip [-F freq] [-D duration]\n"); + printf(" -F freq # sample frequency (Hertz), default 99\n"); + printf(" -D duration # sampling duration (seconds), default 5\n"); } =20 static int sampling_start(int freq, struct bpf_program *prog, @@ -145,19 +145,20 @@ int main(int argc, char **argv) char filename[256]; =20 /* process arguments */ - while ((opt =3D getopt(argc, argv, "F:h")) !=3D -1) { + while ((opt =3D getopt(argc, argv, "F:D:h")) !=3D -1) { switch (opt) { case 'F': freq =3D atoi(optarg); break; + case 'D': + secs =3D atoi(optarg); + break; case 'h': default: usage(); return 0; } } - if (argc - optind =3D=3D 1) - secs =3D atoi(argv[optind]); if (freq =3D=3D 0 || secs =3D=3D 0) { usage(); return 1; --=20 2.34.1