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neonvm-controller, neonvm-runner, neonvm-daemon: introduce separate C…
…PU scaling flow based on the vmSpec.cpuScalingMode If vmSpec.cpuScalingMode is equal to `qmp_scaling` the logic of the scaling is preserved as before: - Scale, if required the amount of CPUs using qmp commands. - If it is required to scale cgroups, call vm-runner /cpu_change endpoint if vmSpec.cpuScalingMode is equal to `cpuSysfsStateScaling` all cpu scaling requests go directly to the vm-runner /cpu_change, which in that configuration goes to the neonvm-daemon to reconcile required amount of online CPUs. Value `cpuSysfsStateScaling` also modifies the qemu and the kernel arguments to enable plug all CPUs but mark as online only first one. Signed-off-by: Misha Sakhnov <[email protected]>
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