c9b8b15767
This has been deprecated and replaced by 'NovaComputeCpuDedicatedSet'
and 'NovaComputeCpuSharedSet', as seen in change
Ibba4273526392985ede6da2ef3fec66a61407777. Update the ComputeRealTime
role to reflect this.
Change-Id: I52c52b62f1c21214b98c98773c8647609cb81d52
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>
Closes-Bug: #1860009
(cherry picked from commit d91a99af32)
38 lines
2.1 KiB
YAML
38 lines
2.1 KiB
YAML
# A Heat environment that can be used to deploy a real-time compute node
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# Deploying a real-time compute node requires enabling hugepages for the
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# overcloud nodes, which is done by default for the ComputeRealTime role.
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# However, the CPU pinnings (IsolCpusList and NovaComputeCpuDedicatedSet)
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# need to be set in an environment file like this, according to the hardware
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# used for the real-time compute nodes.
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# Also the hugepages parameters in KernelArgs should be set accordingly
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# the memory of the real-time compute nodes.
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# It's also possible to overwrite the default values for other parameters like
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# TunedProfileName and ComputeRealTimeImage here.
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parameter_defaults:
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## Only uncomment this line to overwrite the default image name
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#ComputeRealTimeImage: "overcloud-realtime-compute"
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ComputeRealTimeParameters:
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## Host configuration Parameters
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## You must change these values accordingly to your hardware
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IsolCpusList: "1-3,5-7" # Logical CPUs list to be isolated from the host process
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# (applied via cpu-partitioning tuned).
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# It is mandatory to provide isolated cpus for tuned to
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# achieve optimal performance.
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# Example: "3-8,12-15,18"
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NovaComputeCpuDedicatedSet: "1-3,5-7" # Cores to pin Nova instances to. For maximum
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# performance, select cores on the same NUMA node(s)
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# selected for previous settings.
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NovaComputeCpuSharedSet: "0,4" # Cores to pin emulator threads to.
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## Space separated kernel args to configure hugepage. Deploying real-time
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## requires enabling hugepages for the overcloud compute nodes.
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## Adapt the hugepages according to the memory of the real-time compute nodes.
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KernelArgs: "default_hugepagesz=1G hugepagesz=1G hugepages=16"
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## Only uncomment these lines to overwrite the defaults
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#TunedProfileName: "realtime-virtual-host"
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