From patchwork Thu May 25 21:20:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Namhyung Kim X-Patchwork-Id: 99206 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp54612vqr; Thu, 25 May 2023 14:28:12 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ6kFL2qRHPr7GE9v/W8uk1JpjRvVg4u2aFFvPtShe0MNCj8a6F+fuq0a5AaVkZ6DG878ZXa X-Received: by 2002:a05:6a20:3947:b0:10b:4539:fa0a with SMTP id r7-20020a056a20394700b0010b4539fa0amr20081804pzg.1.1685050092361; Thu, 25 May 2023 14:28:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1685050092; cv=none; d=google.com; s=arc-20160816; b=gaRM8dNuZsHxru6sQTC87vWKwo7Xanzo0H2GEl8xMbXoj6kYzi1COnKm8jCmADIzNN pKMiyB0nD51gkrRn9aopUfiVY9oOzXOPb2+e98d7Y5qrhB5d/PgeAeg1KQwAbUaEBLwL jTXOiv0i2J48t8mCyFFwu9TNfZyVBqzHB+dTYFPYFuFlKGLmDwXjkLDbyeHCN2+m4Koc p6vEz7CkcjBQeWjMGNkYAFPohR70mfBMcVO8HL5FjcNStoWOy8b7v3UX9Zi0RMvRE58k ex7ErL1C7bggGmgYPkSPDx/TVl4EIbL+Nm6UGWQ7phUejDlgmVZT/3GhEGY69mexNdfY DM+g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:sender:dkim-signature; bh=45SuE5tqoQ9NMHm14LfNKKCQI6JSEw3tNHdyDgpIw7s=; b=U9wv0Py5xvFRGSH/T7tMyTBsZ7CGm/vB3hWn5pVtD9hmjMM0YIzRgjaUBJnou9yQt4 69t0a/ec3oFoZQ/Y4wqmfIWus7002zgJNw0/QIG414Yj/fWR5PgeB1EYG2CofDWH9Fmk mH/WIvCybLRs7uOe/CffVKH9fyZvL83bYIEZ9OzUKCQujN53kqaueKA70QQgcPgxTU5e ikEezZG+EtbzLlIlTEJ+G6M4IgeF7ZoZukfk/Jlq3a+srTpSOpn8QvxcpFsoQInJkX/1 TG8VJMOr0TgSVwpaSMKrNh8qoqpPAVMp1qLNk3Wx++46Depz26a3p6AGLlZr+1HsQnLl xG5Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20221208 header.b=Ndi8URAN; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id 133-20020a63058b000000b00534792ee2c9si1963351pgf.499.2023.05.25.14.28.00; Thu, 25 May 2023 14:28:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20221208 header.b=Ndi8URAN; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240535AbjEYVUo (ORCPT + 99 others); Thu, 25 May 2023 17:20:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33966 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232016AbjEYVUn (ORCPT ); Thu, 25 May 2023 17:20:43 -0400 Received: from mail-pf1-x42b.google.com (mail-pf1-x42b.google.com [IPv6:2607:f8b0:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38056195; Thu, 25 May 2023 14:20:42 -0700 (PDT) Received: by mail-pf1-x42b.google.com with SMTP id d2e1a72fcca58-64d18d772bdso276607b3a.3; Thu, 25 May 2023 14:20:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685049641; x=1687641641; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:sender:from:to:cc:subject:date:message-id:reply-to; bh=45SuE5tqoQ9NMHm14LfNKKCQI6JSEw3tNHdyDgpIw7s=; b=Ndi8URAN5vHTz0bC2Q7OVlxN3AK2sCndjWHABSvRm9nbF5fn4ZXFeimGpbGBda43Ho RoPfDpYH3U+Pzob+GqEvecnebL1ca5e9tSk54SEY8gnqiu1a45A9VkR5Ee7eLWbPVe1F UQdOuztfkHpn1+dCPgTmv8Cgo311zeaUy+hEnFTAkiRTWa2u+E526k7UAipC7O/OQeDv mH3nqfv348ul7HoBIaGK4mPAy8tSqObwa6z2x2FFDyuJx8fOSTMWRtEa25LaLd2+7YEs cgpEteXtiN3DojMy4WMPp7JY1HZM8497v+vqK6sXYTGYHd3CkziKEU7pImqcH7h170q0 0v+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685049641; x=1687641641; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:sender:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=45SuE5tqoQ9NMHm14LfNKKCQI6JSEw3tNHdyDgpIw7s=; b=inAf6i+D61DQIaQkmYZpFLddnAWnFA2BbFZG3S7Vuu1px6yG0jGovCqV0OiQeD16uX mZBf3/8excShOcostjQ61dPzIGAHQ9NDG7yqvMn2WG2WI41mh67bAqUQn4LmUyhvMQ9d 3vKOuchYJUZSBlYuUEJ0k0WEw5RdjibeatEM+JmrsdgO21bPxsx6LkvuPd/UtRQVOiwz skzuNdprFiKmJA+223co+SWfDVf8UPsIJqozLvrxyl8gtTgJCGFYWqCtAyg9ZIXsT/JB 41tJleR8D6TwhoZjetMxwliUADc560ZstCutGe3+zRReoNyMrizrG6iDBYT6HHPJdjkb jTlw== X-Gm-Message-State: AC+VfDx5SxzSijSJY/hmE2KqnR7J0E7dBvKfW50zgje988rAiOootTPH NcFNkiowI5GW/qhQLX4DsDA= X-Received: by 2002:a05:6a00:1ac7:b0:64b:7c1d:518e with SMTP id f7-20020a056a001ac700b0064b7c1d518emr13583pfv.31.1685049641387; Thu, 25 May 2023 14:20:41 -0700 (PDT) Received: from moohyul.svl.corp.google.com ([2620:15c:2d4:203:7217:977f:12fc:72e0]) by smtp.gmail.com with ESMTPSA id l11-20020a62be0b000000b0064f46570bb7sm1522820pff.167.2023.05.25.14.20.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 May 2023 14:20:40 -0700 (PDT) Sender: Namhyung Kim From: Namhyung Kim To: Arnaldo Carvalho de Melo , Jiri Olsa Cc: Ian Rogers , Adrian Hunter , Peter Zijlstra , Ingo Molnar , LKML , linux-perf-users@vger.kernel.org, Changbin Du Subject: [PATCH] perf ftrace latency: Remove unnecessary "--" from --use-nsec option Date: Thu, 25 May 2023 14:20:38 -0700 Message-ID: <20230525212038.3535851-1-namhyung@kernel.org> X-Mailer: git-send-email 2.41.0.rc0.172.g3f132b7071-goog MIME-Version: 1.0 X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1766903085520427785?= X-GMAIL-MSGID: =?utf-8?q?1766903085520427785?= The option name should not have the dashes. Current version shows four dashes for the option. $ perf ftrace latency -h Usage: perf ftrace [] [] or: perf ftrace [] -- [] [] or: perf ftrace {trace|latency} [] [] or: perf ftrace {trace|latency} [] -- [] [] -b, --use-bpf Use BPF to measure function latency -n, ----use-nsec Use nano-second histogram -T, --trace-funcs Show latency of given function Fixes: 84005bb61486 ("perf ftrace latency: Add -n/--use-nsec option") Signed-off-by: Namhyung Kim --- tools/perf/builtin-ftrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c index ad2a9ae041f6..ac2e6c75f912 100644 --- a/tools/perf/builtin-ftrace.c +++ b/tools/perf/builtin-ftrace.c @@ -1177,7 +1177,7 @@ int cmd_ftrace(int argc, const char **argv) OPT_BOOLEAN('b', "use-bpf", &ftrace.target.use_bpf, "Use BPF to measure function latency"), #endif - OPT_BOOLEAN('n', "--use-nsec", &ftrace.use_nsec, + OPT_BOOLEAN('n', "use-nsec", &ftrace.use_nsec, "Use nano-second histogram"), OPT_PARENT(common_options), };