Ahmed S. Darwish <a.darwish@xxxxxxxxxxxxx> 于2021年2月22日周一 下午6:13写道: > > On Mon, Feb 22, 2021 at 05:29:47PM +0800, 鹏鲲 wrote: > > > > I have read this article carefully before, but this article focuses on > > the x86 system. > > > > Most of the details in that article are not x86-specific. > > > I don't know if anyone has used rt-patch successfully on arm64 kvm? Or > > have a lot of problems with arm64 kvm? > > > > Maybe someone on the list can jump-in and provide their experience. > > In general though, you will have to try things by yourself. Properly > configure both the host and guest kernels for preempt_rt, monitor > VMexits through "perf kvm" and try to minimize them, run cyclictest > inside and outside of the guest, and see how things goes... > > And if this is an embedded device, you can also try Jailhouse. > > Good luck, > > -- > Ahmed S. Darwish I have tested the use of RT-Patch in host and guest os on Raspberry Pi4. Now everything seems to be working fine. Thanks a lot Best, Kun