On Wed, Mar 19, 2025 at 4:29 PM Fiona Ebner <f.eb...@proxmox.com> wrote: > > Hi, > If necessary, our management layer downstream could disable the hpet > timer by default and make users explicitly enable it if > desired/required. I just wanted to ask if the issue is known and if > there are any other suggestions? Thanks!
We can try to skip the timer if the interrupt would have no change - similar to how the RTC works, it's more complex but very effective in reducing CPU usage. That said, if you can disable the HPET timer by default without problems with e.g. live migration I strongly suggest you do. And in the mean time you can also revert these patches, they were actually reported as bugs but it's not clear what guest OS was affected. Paolo
