Re: Using QEMU to performance test Linux kernel

2024-08-15 Thread Philippe Mathieu-Daudé
Hi Paul, On 15/8/24 23:23, Paul Menzel wrote: Dear QEMU folks, I would like to boot a Linux kernel image several times, and log the output – case in point [1] it would be booting with `initcall_debug`, and look at how long `acpi_init()` took to execute. I came up with     qemu-system-x86

Using QEMU to performance test Linux kernel

2024-08-15 Thread Paul Menzel
Dear QEMU folks, I would like to boot a Linux kernel image several times, and log the output – case in point [1] it would be booting with `initcall_debug`, and look at how long `acpi_init()` took to execute. I came up with qemu-system-x86_64 -enable-kvm -smp cpus=2 -m 1G -nographic -ker

How to use gicv3 ITS for PCI MSI

2024-08-15 Thread 叶忠辉 via
Hi All: I want used qemu-system-aarch64 to test PCI msi with gicv3 its, I run command as fllower Sudo ./qemu-system-aarch64 \ -m 32g \ -cpu cortex-a53 \ -machine virt,virtualization=on,gic-version=3 \ -kernel ./linux /arch/arm64/boot/Image \ -initrd busyb