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[80.153.143.164]) by smtp.gmail.com with ESMTPSA id n64-20020a1ca443000000b003d21759db42sm18203942wme.5.2022.12.26.00.45.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Dec 2022 00:45:08 -0800 (PST) From: Alexander Kanavin X-Google-Original-From: Alexander Kanavin To: openembedded-core@lists.openembedded.org Cc: Alexander Kanavin Subject: [RFC PATCH 2/3] qemux86-64: build for x86-64-v3 (2013 Haswell and later) rather than Core 2 from 2006 Date: Mon, 26 Dec 2022 09:44:54 +0100 Message-Id: <20221226084455.2835751-2-alex@linutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221226084455.2835751-1-alex@linutronix.de> References: <20221226084455.2835751-1-alex@linutronix.de> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Mon, 26 Dec 2022 08:45:19 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/175014 This allows us to - test those more recent instruction sets (AVX, AVX2, BMI1, BMI2, F16C, FMA, LZCNT, MOVBE, XSAVE) - benefit from improved performance across the stack both in kvm-driven system emulation and when running on real silicon. For example, glibc: https://www.phoronix.com/news/Glibc-strcasecmp-AVX2-EVEX v4 level is adding AVX-512, which is far less established, particularly Intel has famously backtracked from supporting it in Alder Lake/Raport Lake client CPUs and AMD has only implemented it in very recent Zen4 products: https://www.phoronix.com/news/GCC-11-x86-64-Feature-Levels Signed-off-by: Alexander Kanavin --- meta/conf/machine/include/x86/qemuboot-x86.inc | 4 ++-- meta/conf/machine/qemux86-64.conf | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/meta/conf/machine/include/x86/qemuboot-x86.inc b/meta/conf/machine/include/x86/qemuboot-x86.inc index 3953679366..31db1b2a61 100644 --- a/meta/conf/machine/include/x86/qemuboot-x86.inc +++ b/meta/conf/machine/include/x86/qemuboot-x86.inc @@ -4,8 +4,8 @@ QB_SMP = "-smp 4" QB_CPU:x86 = "-cpu IvyBridge -machine q35,i8042=off" QB_CPU_KVM:x86 = "-cpu IvyBridge -machine q35,i8042=off" -QB_CPU:x86-64 = "-cpu IvyBridge -machine q35,i8042=off" -QB_CPU_KVM:x86-64 = "-cpu IvyBridge -machine q35,i8042=off" +QB_CPU:x86-64 = "-cpu Skylake-Client -machine q35,i8042=off" +QB_CPU_KVM:x86-64 = "-cpu Skylake-Client -machine q35,i8042=off" QB_AUDIO_DRV = "alsa" QB_AUDIO_OPT = "-device AC97" diff --git a/meta/conf/machine/qemux86-64.conf b/meta/conf/machine/qemux86-64.conf index 8640867911..ba8ed21707 100644 --- a/meta/conf/machine/qemux86-64.conf +++ b/meta/conf/machine/qemux86-64.conf @@ -9,8 +9,8 @@ PREFERRED_PROVIDER_virtual/libgles2 ?= "mesa" PREFERRED_PROVIDER_virtual/libgles3 ?= "mesa" require conf/machine/include/qemu.inc -DEFAULTTUNE ?= "core2-64" -require conf/machine/include/x86/tune-corei7.inc +DEFAULTTUNE ?= "x86-64-v3-64" +require conf/machine/include/x86/tune-x86-64-v3.inc require conf/machine/include/x86/qemuboot-x86.inc UBOOT_MACHINE ?= "qemu-x86_64_defconfig"