From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by sourceware.org (Postfix) with ESMTPS id D2AD638582AB for ; Wed, 10 May 2023 22:12:41 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org D2AD638582AB Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-ed1-x52b.google.com with SMTP id 4fb4d7f45d1cf-50bd37ca954so73456659a12.0 for ; Wed, 10 May 2023 15:12:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1683756760; x=1686348760; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=qnTJ2mT+gxcIuB98btex6OlvzSnmUGx3MQnC472k8G4=; b=PqeKHUn+KkmJrqtKbM844c36PxpLah6V7tDtSQH/CpK1lkFtjAzP6yciwdo6PlcndR +8T2F9ncmrqhLTg26ujrnXNb6GxTKrqbsL7xNoLZAV/oVoMbL000XyyGJNs2m5ORZVIQ 5dMFJzyPU9vU6cfHLXK89q5CZiYnbsXN/mydSTtlyBf0VBuAOeDFtVsX9hnPB45L5fBm 4VAYaEdruTzXwFI+l6Avy3g1o9jzKkMFG1/ix6/RrgZzxDQHasnH7ElOkWj9e+n0HC9f KSNpWyLPGJ4yyCrGH90G/8SHpXHUV9jRLjYNKdu6NkHMnDh3UsqngGZdp/fZKnX92dKB 6Isw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683756760; x=1686348760; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=qnTJ2mT+gxcIuB98btex6OlvzSnmUGx3MQnC472k8G4=; b=lr5SzrYb/7MgQkdgqcoLr+Vg/7ZBMdpMwFBg/ZgSk+LTf9mWIsYGdP3UBttByAh8FR JQmOmRK7N6hlp45OyZ3trrHzAxvoTDy6v2my7Z2YWqTzMEEYsEiInflIusPnnxau06QK o1aRxrDQS9ryAkIin/NfRzXaha2Km91mL3kCUQK/HLgPfuu/1SxsyUzcyOrg4Hz6ppm1 Hu+dhUfvJANW8Xwjb4a1U0cPlpSj71Kf8uVvCz35sMaZzsdyyHoVASji6CG9JJFotHfF TtJ3EZE/ow9U2TJKZ4CKPsaLZCmPhKTDddrEpaN9q86wCOprKNIhGTpwmco+sZ7Ze4gP raQg== X-Gm-Message-State: AC+VfDzDc8F3DPgEZlJP3fl+d7lhzq3arOWGUJkJEuQKAiOMlZw4q+W3 9b6sGPsvR8TyVX0CDa5U0Z8RdHE4phE= X-Google-Smtp-Source: ACHHUZ7RBy4xznlssotgy71AqaleuqjCj8GNEdewp5yx5HmFhcv920g9vKeSZEiq6boIFnrB2BMq8w== X-Received: by 2002:a17:907:1622:b0:965:aa65:233f with SMTP id hb34-20020a170907162200b00965aa65233fmr17696979ejc.2.1683756759576; Wed, 10 May 2023 15:12:39 -0700 (PDT) Received: from noahgold-desk.lan (2603-8080-1301-76c6-d514-288c-2603-6ec7.res6.spectrum.com. [2603:8080:1301:76c6:d514:288c:2603:6ec7]) by smtp.gmail.com with ESMTPSA id mc27-20020a170906eb5b00b00966330021e9sm3141378ejb.47.2023.05.10.15.12.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 May 2023 15:12:38 -0700 (PDT) From: Noah Goldstein To: libc-alpha@sourceware.org Cc: goldstein.w.n@gmail.com, hjl.tools@gmail.com, carlos@systemhalted.org Subject: [PATCH v7 4/4] x86: Tune 'Saltwell' microarch the same was a 'Bonnell' Date: Wed, 10 May 2023 17:12:13 -0500 Message-Id: <20230510221213.765754-3-goldstein.w.n@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230510221213.765754-1-goldstein.w.n@gmail.com> References: <20230424050329.1501348-1-goldstein.w.n@gmail.com>v7-0001-x86-Increase-non_temporal_threshold-to-roughly-si.patch> <20230510221213.765754-1-goldstein.w.n@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-12.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,GIT_PATCH_0,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE 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: Saltwell is just a die shrink of Bonnell, so the same micro-architectural optimization preferences apply. --- sysdeps/x86/cpu-features.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c index 4cc1cd9fed..0fb02d2f39 100644 --- a/sysdeps/x86/cpu-features.c +++ b/sysdeps/x86/cpu-features.c @@ -672,7 +672,8 @@ init_cpu_features (struct cpu_features *cpu_features) { /* Atom / KNL tuning. */ case INTEL_ATOM_BONNELL: - /* BSF is slow on Bonnell. */ + case INTEL_ATOM_SALTWELL: + /* BSF is slow on Bonnell/Saltwell. */ cpu_features->preferred[index_arch_Slow_BSF] |= bit_arch_Slow_BSF; break; @@ -710,7 +711,6 @@ init_cpu_features (struct cpu_features *cpu_features) /* Default tuned atom microarch. */ case INTEL_ATOM_SIERRAFOREST: case INTEL_ATOM_GRANDRIDGE: - case INTEL_ATOM_SALTWELL: goto default_tuning; /* Bigcore Tuning. */ -- 2.34.1