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> Firecracker is comparable to QEMU; they are both VMMs that utilize KVM, a hypervisor built into the Linux kernel. That's not accurate: While KVM is mandatory
by Dunedan 4y ago
> Firecracker is comparable to QEMU; they are both VMMs that utilize KVM, a hypervisor built into the Linux kernel.
That's not accurate: While KVM is mandatory for Firecracker, it isn't for QEMU.
- TheDong 4y agoIt is accurate with a charitable reading, and not accurate with an uncharitable one. > Firecracker is comparable to QEMU This is charitably true. They can be used for similar high-level tasks, and thus they are reasonably comparable. > that utilize KVM Both qemu and firecracker use KVM, it happens that qemu supports other hypervisors/options. "utilize KVM" does not have to be read uncharitably as _only_ uses that.
- bogwog 4y agoThe internet would be a friendlier place if people were more willing to give each other the benefit of the doubt.
- hun3 4y agoIdeally, the OP should have clarified it as "QEMU-KVM", since QEMU has a plethora of other use cases than a VMM (e.g. qemu-user, qemu atop Hyper-V/Xen/Hypervisor.Framework, cross-architecture emulation) that are more-or-less used just as often. It shouldn't be a problem for already knowledgeable readers, but it _might_ give false impression that QEMU only works as a KVM-only VMM monitor to others.