11 lines
672 B
YAML
11 lines
672 B
YAML
---
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features:
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- |
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Add support for configuring cpu_shared_set
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Some workloads run best when the hypervisor overhead processes (emulator threads in libvirt/QEMU) can be placed on different physical host CPUs than other guest CPU resources. This allow
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those workloads to prevent latency spikes for guest vCPU threads.
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To place a workload's emulator threads on a set of isolated physical CPUs, set the configuration option to the set of host CPUs that should be used for best-effort CPU resources. Then set
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a flavor extra spec to ``hw:emulator_threads_policy=share`` to instruct nova to place that workload's emulator threads on that set of host CPUs.
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