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 <[email protected]> --- 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" -- 2.30.2
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#175014): https://lists.openembedded.org/g/openembedded-core/message/175014 Mute This Topic: https://lists.openembedded.org/mt/95884823/21656 Group Owner: [email protected] Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
