From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yb1-xb2a.google.com (mail-yb1-xb2a.google.com [IPv6:2607:f8b0:4864:20::b2a]) by sourceware.org (Postfix) with ESMTPS id 41862385609A for ; Wed, 10 May 2023 22:04:54 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 41862385609A 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-yb1-xb2a.google.com with SMTP id 3f1490d57ef6-ba68ad1b342so697309276.1 for ; Wed, 10 May 2023 15:04:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1683756293; x=1686348293; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=0QTv18Z67LsSl8duz7BwWa2z1hLgCZTFa9rP+BbLbts=; b=mfPaVEf2yLDlIzKhQ+Tl7vyx8twkqpNvZYZ3sxqaIcie0Uz1WLh+HHxfjauppDrqvN GcYM5Nj+4mnGrAM93LMWCRUqXPYz75iBYCHnFA4lRN6lpne2Fu403OkeZvs0a1O4ypT9 ve8vXLo/iisBxBpXJPj1KuhkRMBFsvQpvoKF4WA3zTSYME61FrQsYpfci20/LMh/VS1Q MBaxu4QLe68J+t8TI/wh9hdfztFONP2eqK7TQXiSjm3tQYx0emSxj2KDCrdZ6ff0ZG9W +a2f8u0Iy0/20t4RzPbeyan/QOghq1PBs/+r1aHCsVjobbYxcINONghxZE5A6HHD7aGI bzHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683756293; x=1686348293; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0QTv18Z67LsSl8duz7BwWa2z1hLgCZTFa9rP+BbLbts=; b=KrgG3NHCX+0COkhybi4MKL2B2kEWfaXCAo8lsQwW9pJ38nQeZeQ7YhFazb/owD8J9d AflBVg2K9dB5wjVQ0XP1zMemhmlVVJGWELAyCooge3ydDM1me871hxjoKenww9LgT/4I //SxaaxiKrYVaJVDbYzWflkvhv801wz7NYE1xv48zGIoXj1O4ps/H7tqaMb+VlzXgawS EADa/IJKc7FyYl2TsxaDtabXWSdGJA77ezgENx1eC3yJC/ZdCQRK6LGrc21xuk3D2a0a vILoHZ3084+p3T8+oVmB8VWTbRs/BwlDynmGVjcn4UXVhOEEkrT+uie145oynUIotUeF Hqgg== X-Gm-Message-State: AC+VfDwzVpU9v3LXKHZbayTDLGOYA7pInPL740PyGLlPA626Ko8Lso+c LEIuupvwJI86SH301higPD5qlipMfl7tKHZQAqY= X-Google-Smtp-Source: ACHHUZ7qxAGHYww66zBtBenJHvsnQMEqd1IjpvA+bY7LxA9PhyDChdZZzXPCRXz1x4JYHhnV8M9xThdqP3eiBcQO3MQ= X-Received: by 2002:a25:d349:0:b0:b9a:76e4:ccd6 with SMTP id e70-20020a25d349000000b00b9a76e4ccd6mr21006601ybf.36.1683756293524; Wed, 10 May 2023 15:04:53 -0700 (PDT) MIME-Version: 1.0 References: <20230424050329.1501348-1-goldstein.w.n@gmail.com> <20230510003336.637851-1-goldstein.w.n@gmail.com> <20230510003336.637851-4-goldstein.w.n@gmail.com> In-Reply-To: <20230510003336.637851-4-goldstein.w.n@gmail.com> From: "H.J. Lu" Date: Wed, 10 May 2023 15:04:17 -0700 Message-ID: Subject: Re: [PATCH v6 4/4] x86: Tune 'Saltwell' microarch the same was a 'Bonnell' To: Noah Goldstein Cc: libc-alpha@sourceware.org, carlos@systemhalted.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-3022.0 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: On Tue, May 9, 2023 at 5:34=E2=80=AFPM Noah Goldstein wrote: > > Saltwell is just a die shrink of Bonnell, so the same > micro-architectural optimization preferences apply. > --- > sysdeps/x86/cpu-features.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c > index 4cc1cd9fed..517b1be34c 100644 > --- a/sysdeps/x86/cpu-features.c > +++ b/sysdeps/x86/cpu-features.c > @@ -678,7 +678,9 @@ init_cpu_features (struct cpu_features *cpu_features) > break; > > /* Unaligned load versions are faster than SSSE3 > - on Airmont, Silvermont, Goldmont, and Goldmont Plus.= */ > + on Saltwell, Airmont, Silvermont, Goldmont, and Gold= mont > + Plus. */ > + case INTEL_ATOM_SALTWELL: It should be grouped with Bonnell. > case INTEL_ATOM_AIRMONT: > case INTEL_ATOM_SILVERMONT: > case INTEL_ATOM_GOLDMONT: > @@ -710,7 +712,6 @@ 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 > --=20 H.J.