...
QEMU: 9.1.0 (with this patch to fix performance issue we found: https://lore.kernel.org/qemu-devel/20241007172317.1439564-2-pbonzini@redhat.com/- it will be merged available in next stable and qemu 9.2.0 and was already merged on master)
Android aarch64 image: aosp_cf_arm64_only_phone-img-12425990.zip
Android x64 image: aosp_cf_x86_64_phone-img-12426306.zip
...
Series fixing the regression: https://lore.kernel.org/qemu-devel/20241007172317.1439564-2-pbonzini@redhat.com/
This series will be was merged in QEMU soon, and will be available in next-stable and QEMU 9.2.0. Meanwhile, ensure your QEMU is built with this patchbuild QEMU from master branch.
Following results are presented with this fix.
...
4 cores
-cpu max (,pauth=off on aarch64)
ensure that cmpxchg is used on x64 (massive difference with smp > 1). This series https://lore.kernel.org/qemu-devel/20241007172317.1439564-2-pbonzini@redhat.com/ will be was merged in QEMU and will be available in qemu next stable and 9.2.0. Meanwhile, use a QEMU compiled from master branch.
Performance difference between aarch64 and x64 can be explained by TLB management on aarch64, and some helpers.
...