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=-13.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=no 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 8DF80C433B4 for ; Tue, 6 Apr 2021 18:31:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B1DE613D4 for ; Tue, 6 Apr 2021 18:31:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232440AbhDFSbj (ORCPT ); Tue, 6 Apr 2021 14:31:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230280AbhDFSbj (ORCPT ); Tue, 6 Apr 2021 14:31:39 -0400 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3AE45C06174A for ; Tue, 6 Apr 2021 11:31:31 -0700 (PDT) Received: by mail-lf1-x130.google.com with SMTP id o126so24381853lfa.0 for ; Tue, 06 Apr 2021 11:31:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=euRo0fFZW1XQm6HPp79K+3LluoMpXlXxzV1+Kzw4l1U=; b=ap1mpGSaMnVKbk1wKPql8sMs4MA2LO03upICp5gY0NdhClfvjKjX3PvvrSL8yWYncn WuAZwKULDXFj7juBZdoZtSPZOFJLrCIKR4Bh+XvvYItum2e1k2TG4IlhiQKyhAbfsgam V7AQprdrzUTOf/NaGcjir9f8Y/1usIPs4Y1bKDRtQid2q7Iv+bk1GvAu5OlR3inTqeGj x6cVjDjD7U3cAXUSTyWFhuoBrfP3mhfYVOvoxG+Z4KGQnHIn2xcgf7POqF8nGFoqwxsC 5OtLLAqfKKnaPfpRTCEQa6DlTH3qvQw7irO2O4fzGvA+f46JUtcIYVYqeWBUD2wwpyab XwTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=euRo0fFZW1XQm6HPp79K+3LluoMpXlXxzV1+Kzw4l1U=; b=ArOUBTrwY1nZO7OvcfHzIWyp6oox4OWAzY9DfxpKcpDG3oAv2oo+RJL2ywZwJhvLh+ HDROddRVs/6nbM0NgINJvy7c0tV1PFoGSHYEgBUfgNoNxkM6ioR4WQoNPJmDxyWk5Fvl bqgCAkXBkND3hU50cth9t9v1u1KB/cqG5QxjtjJvPz0GfVkPJVqiY+9yUNJ/hGj39/vD Mdlxb4qoyaGwJ+dgWjPXzyIkkX1dVeVP84aww5CqN59NAbP3Jw51QMbRqbtiqdIGOuY8 QKUus1jbF7VfySPegR77GomA/mAHKOMzfBJUMXSOm53C1SuGMgdYuGEGL43PLgYH+No8 mtmg== X-Gm-Message-State: AOAM530y/TP2naFXbW9rUJ/2scwEIEj9u+V30bHJO3ICZ1L8C54LLot5 WtPwr46GOWYeIKAvoo+af3zfifH/p/IKgc7BIG7tmA== X-Google-Smtp-Source: ABdhPJw+0wjMbthWQznQ4MeKcArGPuhj+Jm6HV9o3uq8zPVkkqJffJ3ehBxJ/t3F8LQFbULOKk4N1UPNp9bQv4j36wg= X-Received: by 2002:a05:6512:94d:: with SMTP id u13mr20191207lft.368.1617733889510; Tue, 06 Apr 2021 11:31:29 -0700 (PDT) MIME-Version: 1.0 References: <06ba2ed4-2730-9ce8-0665-3c720bc786a3@fb.com> <3a6aa243-add9-88a5-b405-85fd8bfbe21d@fb.com> <4eda63d8-f9df-71ab-d625-dcc4df429a89@fb.com> In-Reply-To: From: Nick Desaulniers Date: Tue, 6 Apr 2021 11:31:18 -0700 Message-ID: Subject: Re: [PATCH dwarves 0/2] dwarf_loader: improve cus__merging_cu() To: Arnaldo Carvalho de Melo Cc: Yonghong Song , Bill Wendling , Jiri Olsa , dwarves@vger.kernel.org, Alexei Starovoitov , Andrii Nakryiko , bpf , David Blaikie , =?UTF-8?B?RsSBbmctcnXDrCBTw7JuZw==?= , kernel-team@fb.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On Tue, Apr 6, 2021 at 11:04 AM Arnaldo Carvalho de Melo wrote: > > Em Tue, Apr 06, 2021 at 03:03:29PM -0300, Arnaldo Carvalho de Melo escreveu: > > /me goes back to building clang/llvm HEAD, reducing the number of linker > > instances to 1 as I have just 32GB of ram in this Ryzen machine... ;-) > > And guess what takes a long time? > > [ 61%] Linking CXX executable ../../bin/llvm-lto During configuration of LLVM (cmake): $ cmake ... -DLLVM_ENABLE_LLD=ON to link the binaries with LLD, which should be able to link using all cores. https://llvm.org/docs/CMake.html -- Thanks, ~Nick Desaulniers