From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by sourceware.org (Postfix) with ESMTPS id 474FB3858417 for ; Tue, 23 Apr 2024 14:53:57 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 474FB3858417 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 474FB3858417 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=2607:f8b0:4864:20::1029 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1713884038; cv=none; b=D1AwC16LC6uxInHQXu6CnnoJA2GQAXn+zElEbc3SWRRJKbkFkEa/l2Y2SlM3SGeGapwoY5jKtFp9Me3rxowvfUxirHmcl1qKwgh7K8GFF89w0KufRW6HW6SZvy74Z7cHnYXz/khrXwisqD4F0RL3jfUm/W1R5ZHgPrz5zX+hvaE= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1713884038; c=relaxed/simple; bh=gzu8h7IoFydVD+jlvcBlG/ofP0fqsddgLfxMVRRozws=; h=DKIM-Signature:MIME-Version:From:Date:Message-ID:Subject:To; b=JDdTl8J1KHfwNrBKeEdsGpdl8FfPKOmD3qZJHyrz14vsl1qC06TuA/JTmPW+LPf4dY4dahKK6vJNMEwubCkhjwIsmRo8dBYVWxke4lSTwIZRrv41+I2LRVFS+AopIPbs5xY2ZoXi9H2rjsobBHoyEWh9OFjou4xGdva3/D9fqs0= ARC-Authentication-Results: i=1; server2.sourceware.org Received: by mail-pj1-x1029.google.com with SMTP id 98e67ed59e1d1-2a559928f46so3760943a91.0 for ; Tue, 23 Apr 2024 07:53:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1713884036; x=1714488836; darn=gcc.gnu.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=gzu8h7IoFydVD+jlvcBlG/ofP0fqsddgLfxMVRRozws=; b=KY4lN7VU24WG0TnDeKBOaDxpl2o+O1547+1OPxPtaPrJlDDM8cImbYnAfLHvCU+lXI D6R1ak/pA0e2fEjyl6QN99AxB+XXjj2DgPEIQKg9iXFM4UU4ozIJ/Tvgc3QUaKgcyfmV FSFjHs/AXHp+2B0JBr76qnIuj1Vn3qwnGSnF0Sc+itTZmgQZPSbdcVpVuAsPd1xxJ2ak b2+yA3fviBYdVVoOD8waBOKIVSsMr9u6pBkdMHQ4RfRyw/Zd2vnyOm2P6NWun8fCSODL 1iktzaoPWBNM0Kp64K5nG8C0yqynhucq7crOGWaJD1kiceiyEj0HKs0QNWCk7cm9WxaS Esng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713884036; x=1714488836; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=gzu8h7IoFydVD+jlvcBlG/ofP0fqsddgLfxMVRRozws=; b=J/bwWo6AaiNOKQ0wnWBO1OF6qyXM4CC3F2k6+cABOIH7oq5lOUqMB5bYSrv80YvhMA 9P4K8ax9pmdBRhLX79cLL7/kt3a5zH8E6rL6VZrjgIvZx2a3WWsc7rK9d85/7mx+MDiQ vyoWxC5/PrXu9yF7rb6g5peGUISsjdAmjrUnyHd8bgUklwsn0YQvbbKPOdlMHH0m/i3j G95iyDTM1Un7Iv9REbFBwxHFoT66nKdaohXHqoaajRIsQ2HHRrCZIoFizS1TK+eMqvQX K3D6DQdpr04CD+tG/RfALQ5y1xnotCBImfFZ8+vaoofTA5PvSbO/V2rQvCwGmdPnd/40 YkTg== X-Gm-Message-State: AOJu0YxtbCzeaPUZViDAFqdLrlG0ILzQxEBDizxmcm5OZtObQS8MsHBK Moe9GMboLLMkp2yUwm87DDwOhI9ykN6k/EfNbI+GxOqumfXJofylZKt5Ah2tcOIA0ZiwI9XHzPH ohtXKamNiJEzonfKFb4Hw+9UeFrOZDuCmng== X-Google-Smtp-Source: AGHT+IEws+w1OSsci09qZlvGvGdeO1mBei3rqH8Hq9vsta3JTuFy3IBVdHIPoQfxNQ1ye063zKVHiS57PPyST7EegMU= X-Received: by 2002:a17:90a:12c5:b0:2ab:e345:4685 with SMTP id b5-20020a17090a12c500b002abe3454685mr11599134pjg.17.1713884035978; Tue, 23 Apr 2024 07:53:55 -0700 (PDT) MIME-Version: 1.0 From: =?UTF-8?B?546L5rez5rSL?= Date: Tue, 23 Apr 2024 22:53:44 +0800 Message-ID: Subject: problem with lto To: gcc-help@gcc.gnu.org Content-Type: multipart/alternative; boundary="00000000000026a1110616c4b9c5" X-Spam-Status: No, score=-0.2 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: --00000000000026a1110616c4b9c5 Content-Type: text/plain; charset="UTF-8" Hello, I am using -flto when building nginx, but got lower benchmark scores, about -1%~-2%, which makes me confused. I am wondering if there are other options to be combined with -flto, to make the best optimization. By the way, will lto acts on the process of merging .o to generate .a . Thanks. --00000000000026a1110616c4b9c5--