From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,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 EBD1AC433C1 for ; Wed, 24 Mar 2021 13:05:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A0BA461992 for ; Wed, 24 Mar 2021 13:05:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234228AbhCXNE3 (ORCPT ); Wed, 24 Mar 2021 09:04:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232501AbhCXNEW (ORCPT ); Wed, 24 Mar 2021 09:04:22 -0400 Received: from mail-wr1-x42e.google.com (mail-wr1-x42e.google.com [IPv6:2a00:1450:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86196C061763 for ; Wed, 24 Mar 2021 06:04:21 -0700 (PDT) Received: by mail-wr1-x42e.google.com with SMTP id 14so1142379wrz.12 for ; Wed, 24 Mar 2021 06:04:21 -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:mime-version :content-transfer-encoding; bh=HtxPQ25PE5//Awn5wGqP8YGAlQctVvzxbZe8RL8oxU8=; b=Y1fNMSOpJlCSRMwjCfPrwEMbNC+saTaXeQ37+N5oVL9lQp3MCA6Rhriq/Hz4oENHva RTzt94UFiMtHdrO++FoE1wvJGKRieRaWwbmEH5xieCtsv+tKYatJ0zITIs5J2ySr0Hsv N0oEsOicEv6Z+HaatJikBK8RGDBmN4tcpE6tL+396UIe/1wpo1tnvi4HoGq2GmAsj0wd 0ijYF84RZbkTNywWR3Idt1WbQUhc4P2M1p1uwlnq0czFXBc9qeZkbGppaq50TfI9YImm lybRGdgLi4QqT+6Q7xR17V1s6SFVGOO97qQq5znHzgTBUJG9k1Ih4sLpux6GpH9+WnBi P+Pg== 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:mime-version :content-transfer-encoding; bh=HtxPQ25PE5//Awn5wGqP8YGAlQctVvzxbZe8RL8oxU8=; b=ExbH7S8YkP+st7AfmTFDmzz5tVLyL4CEYPSh+BKJQaVSI4u84V1XBeRllDK7SIAWC6 mwxBm2zagnblabEzJuGCypYL+zFS3A6zjVkkTQOtwpQkKHkNmshMhkfJnfs6DEyVUBYT VXsFJwX6NxhVT/Uykzx1catf1B1iwzZZNC5w+VDBrZvx4jYD+vZL8Jn82nlejtV6OQsg kUo85FbyNzk528uwnYcdxnCcEzVhbruWKxE3OXuvVmlkhHOSKiJUmKajCKSxvGOulZhF RGVdy2IYNa4LM9vgusdiI69NopTuQIRpjVVTe8M5OCCKjApPTdT/v0yqyFqU5JF6xd/q f/xA== X-Gm-Message-State: AOAM53031Lv8m6U7rvmuFV8ISgvcw+pNVKL+0xKVRvGl5JJIX69hTrjF 8q864t751HNtIxq8KJqjnZngO0s3AcUMNQ== X-Google-Smtp-Source: ABdhPJw24OHywjGXTiWDjLkiEY2k2lU1ihHAVmIOnPLGFyTHY+u+zAw4t5l3k0/Wso1DlQU1rZmwLA== X-Received: by 2002:adf:f186:: with SMTP id h6mr3449078wro.290.1616591060331; Wed, 24 Mar 2021 06:04:20 -0700 (PDT) Received: from oberon.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id w11sm3034919wrv.88.2021.03.24.06.04.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Mar 2021 06:04:19 -0700 (PDT) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v3 00/23] TSC trace clock to nanosecond conversion Date: Wed, 24 Mar 2021 15:03:55 +0200 Message-Id: <20210324130418.436206-1-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org Added new logic for converting TSC event's timestamps to nanoseconds. This trace clock is used by default in host-guest tracing session in combination with KVM time sync plugin. The parameters for conversion are retrieved by the perf kernel interface. New option is added to "trace-cmd report" command to force displaying raw time stamps from the trace file, without any corrections to the time stamps. These changes depend on "Refactoring and improvements of time sync logic" patch set. v3 changes: - Split logically the changes in more patches. - Extended the TRACECLOCK option with trace clocks. - Fixed the TRACEID option to expect at least 8 bytes, so it can be extended in the future without breaking the old logic. - Code cleanup and coding style fixes. v2 changes: - Added new trace clock "-C tsc2nsec", which does not depend on host-guest tracing use case. - A few minor improvements and fixes. Tzvetomir Stoyanov (VMware) (23): trace-cmd: Add initial perf interface in trace-cmd library trace-cmd: Extend trace-cmd dump subcommand to display the clock trace-cmd: Save only the selected clock in the trace.dat file trace-cmd: Internal refactoring, move logic for local tep handler in its own function trace-cmd: Add new local function to check if a trace clock is supported trace-cmd: Add new trace-cmd clock tsc2nsec trace-cmd: Define a new option for tsc2nsec conversion trace-cmd: Save information for tsc to nanoseconds conversion in trace file trace-cmd: Read information for tsc to nanoseconds conversion from trace file trace-cmd: Save tsc2nsec clock in trace.dat file trace-cmd: Append new options into guest trace file at the end of the tracing session trace-cmd: Remove unneeded multiply in events timestamp reading trace-cmd: Perform all timestamp corrections in a single function trace-cmd: Convert tsc timestamps to nanosecods when reading trace data from a file trace-cmd: Set order and priorities when applying timestamp corrections trace-cmd: Add a new flag to disable any timestamp corrections trace-cmd: Change "--nodate" option to affect "--date" option only trace-cmd: Add new parameter "--raw-ts" to "trace-cmd report" command trace-cmd: Print times in TimeShift options as unsigned in trace-cmd dump trace-cmd: Use tsc clock for host-guest tracing, if available trace-cmd: Get current clock for host-guest tracing session trace-cmd: Save the trace clocks in TRACECLOCK option trace-cmd: Read at least 8 bytes trace-id option Documentation/trace-cmd/trace-cmd-dump.1.txt | 2 + Makefile | 6 + lib/trace-cmd/Makefile | 3 + .../include/private/trace-cmd-private.h | 22 + lib/trace-cmd/trace-input.c | 103 +++-- lib/trace-cmd/trace-output.c | 65 ++- lib/trace-cmd/trace-perf.c | 105 +++++ lib/trace-cmd/trace-timesync.c | 1 - tracecmd/include/trace-local.h | 7 + tracecmd/trace-dump.c | 55 ++- tracecmd/trace-read.c | 9 +- tracecmd/trace-record.c | 387 +++++++++++++++--- tracecmd/trace-usage.c | 1 + 13 files changed, 662 insertions(+), 104 deletions(-) create mode 100644 lib/trace-cmd/trace-perf.c -- 2.30.2