From patchwork Mon Mar 15 06:18:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Tzvetomir Stoyanov (VMware)" X-Patchwork-Id: 12138401 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A7DBC43381 for ; Mon, 15 Mar 2021 06:19:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4EB4D64E51 for ; Mon, 15 Mar 2021 06:19:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229899AbhCOGS7 (ORCPT ); Mon, 15 Mar 2021 02:18:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58246 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229914AbhCOGSn (ORCPT ); Mon, 15 Mar 2021 02:18:43 -0400 Received: from mail-ej1-x633.google.com (mail-ej1-x633.google.com [IPv6:2a00:1450:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED637C061574 for ; Sun, 14 Mar 2021 23:18:42 -0700 (PDT) Received: by mail-ej1-x633.google.com with SMTP id mj10so64193308ejb.5 for ; Sun, 14 Mar 2021 23:18:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=w6avxxa59CWKnEJJRYffo95ueCrWvVZMSAzBPlxpHUI=; b=leVek15DA1tfUVN6E0F/UPoJ+3pLD5Aq4Iss9tAZ5nTkoy9F85Fe7KlyMSpROUmquy xgMwia1QzfBR6QUjsDnGDOGU13oH6Sabwv8WM8Z3WLJ9Qw24KSP8+XFs+I3iWImj2GcZ Phf9fpRqFRXG1bQ19wXL0KnDK6Z5ceWgjRoO6n8qYQG5r9A0ywPd+jk3j3sA4a7rFxe/ G1dF+2+iuLXUXHFJM6VcTSHH+81yNkiQax0hrcakCHo0jSAJxib7i1A/kfW1YdJyBwYP MeOI2xE54oRfaYhsveRLF8cxQ/GntelR1mgz2MNVKn+GOqDCOku6pdUSOIjjocUaG6CX RUhQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=w6avxxa59CWKnEJJRYffo95ueCrWvVZMSAzBPlxpHUI=; b=Mq63g3rWPjSnStxgIyyh/0bPUuZ9bZDtCko6l+YbRxadZhdVbbr6APViQG0xkATusJ zcuP31LPPwXRuqaD5GJagZ3vS++fMISflwsFp/rlnSfKvtguOumbqyRCZThwBxA43XP8 82ZHOJbol9GhkxgqjxL12Zoi7xM5Tr9b4dnmKbq2Z5mAshGG8Ya+fTL6du9dwPkEt6Kv wF7HAddghNDgsoWaRL+/4K2ncByQ6jgdsVDhw58WnjbbWl/FRVfWOvYjt6Hk7QsNTP9G 4eKJ2jrCLOmfFk0vz6pqYFVhFc6p36jFr2a5jthHKQLOgKjtelJ8TrMGsjxD9/uS6vxF 0+iA== X-Gm-Message-State: AOAM530F5rv7dyztPFIcin4SrxpsEb9wr1Mbex9c6NnRyRjBf+WKT7VN 9eDM3Jy59NmhDzfhqbd0bNo= X-Google-Smtp-Source: ABdhPJz96JAPSqqV7jI7BD9eUwQWtUcET2ZpE7q5kwC7P1G3dahoc3mE3jtrQT2nGh+2sB7bx8SQHg== X-Received: by 2002:a17:906:18aa:: with SMTP id c10mr21768763ejf.248.1615789121759; Sun, 14 Mar 2021 23:18:41 -0700 (PDT) Received: from localhost.localdomain ([130.185.229.134]) by smtp.gmail.com with ESMTPSA id t6sm7468478edq.48.2021.03.14.23.18.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Mar 2021 23:18:41 -0700 (PDT) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH 06/12] trace-cmd: Read information for tsc to nanoseconds conversion from trace file Date: Mon, 15 Mar 2021 08:18:26 +0200 Message-Id: <20210315061832.168495-7-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210315061832.168495-1-tz.stoyanov@gmail.com> References: <20210315061832.168495-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org Read multiplier and shift, required for TSC clock to nanosecond conversion from the metadata of the trace file and save them in the tracecmd input file handler. Signed-off-by: Tzvetomir Stoyanov (VMware) --- lib/trace-cmd/trace-input.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c index 2093a3dc..1e925f45 100644 --- a/lib/trace-cmd/trace-input.c +++ b/lib/trace-cmd/trace-input.c @@ -99,6 +99,12 @@ struct host_trace_info { struct ts_offset_sample *ts_samples; }; +struct tsc2nsec { + int mult; + int shift; + int offset; +}; + struct tracecmd_input { struct tep_handle *pevent; unsigned long file_state; @@ -118,6 +124,8 @@ struct tracecmd_input { bool use_pipe; struct cpu_data *cpu_data; long long ts_offset; + struct tsc2nsec tsc_calc; + struct host_trace_info host; double ts2secs; char * cpustats; @@ -2674,6 +2682,16 @@ static int handle_options(struct tracecmd_input *handle) case TRACECMD_OPTION_GUEST: trace_guest_load(handle, buf, size); break; + case TRACECMD_OPTION_TSC2NSEC: + if (size != 12) + break; + handle->tsc_calc.mult = tep_read_number(handle->pevent, + buf, 4); + handle->tsc_calc.shift = tep_read_number(handle->pevent, + buf + 4, 4); + handle->tsc_calc.offset = tep_read_number(handle->pevent, + buf + 8, 4); + break; default: warning("unknown option %d", option); break;