[Bug 2056065] Re: cloud images slow to boot under kvm

2024-03-06 Thread Christian Ehrhardt 
Ack to everything Sergio said, but even when trying with the qemu 7.2 in Debian that you have. No huge slowdown in the transition from early boot stages to seeing the kernel load (again ~1 second). -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 2056065] Re: cloud images slow to boot under kvm

2024-03-06 Thread Sergio Durigan Junior
Hi Ross, Thanks for the feedback. It's a strange situation, indeed. And I have to say that I cannot reproduce the issue here even after forcing qemu to use pc-i440fx-{mantic,jammy}, which is what happens when you don't specify type=q35. The VM boots without issues. Of course, the first time

[Bug 2056065] Re: cloud images slow to boot under kvm

2024-03-05 Thread Ross Vandegrift
Hi Christian, Sorry for not including my qemu command line. Thanks for including yours, that lets me spot the difference. I've been using `-machine type=kvm` (so the default, pc-i440fx). Switching to q35 fixes the issue, and the other OS images are still fast. Kind of perplexing that it'd only

[Bug 2056065] Re: cloud images slow to boot under kvm

2024-03-04 Thread Christian Ehrhardt 
Hi Ross, thanks for the report, and that is odd indeed. It sounds like the initialization needing a fallback of some sort to then go to the next step and get to the bootloader. I was quickly retrying and did not see/reproduce that slowdown in the bootloader. It passes that stage rather quick,