# A Heat environment that can be used to deploy a real-time compute node # Deploying a real-time compute node requires enabling hugepages for the # overcloud nodes, which is done by default for the ComputeRealTime role. # However, the CPU pinnings (IsolCpusList and NovaVcpuPinSet) need to be set in # an environment file like this, according to the hardware used for the # real-time compute nodes. # Also the hugepages parameters in KernelArgs should be set accordingly # the memory of the real-time compute nodes. # It's also possible to overwrite the default values for other parameters like # TunedProfileName and ComputeRealTimeImage here. parameter_defaults: ## Only uncomment this line to overwrite the default image name #ComputeRealTimeImage: "overcloud-realtime-compute" ComputeRealTimeParameters: ## Host configuration Parameters ## You must change these values accordingly to your hardware IsolCpusList: "2,3" # Logical CPUs list to be isolated from the host process (applied via cpu-partitioning tuned). # It is mandatory to provide isolated cpus for tuned to achive optimal performance. # Example: "3-8,12-15,18" NovaVcpuPinSet: "2,3" # Cores to pin Nova instances to. For maximum performance, select cores # on the same NUMA node(s) selected for previous settings. ## Space separated kernel args to configure hugepage. Deploying real-time ## requires enabling hugepages for the overcloud compute nodes. ## Adapt the hugepages according to the memory of the real-time compute nodes. KernelArgs: "default_hugepagesz=1G hugepagesz=1G hugepages=16" ## Only uncomment these lines to overwrite the defaults #TunedProfileName: "realtime-virtual-host"