Red Hat Summit Red Hat Summit지원콘솔개발자평가판 시작연락처

15장.

15.1.
링크 복사

참고

참고

15.1.1.
링크 복사

참고

15.1.2.
링크 복사

  1. $ oc label node <node_name> node-role.kubernetes.io/worker-cnf=""
    1
    Copy to Clipboard Toggle word wrap
    1 

    1. apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfigPool
metadata:
  name: worker-cnf
      1 
      
  labels:
    machineconfiguration.openshift.io/role: worker-cnf
      2 
      
spec:
  machineConfigSelector:
    matchExpressions:
      - {
           key: machineconfiguration.openshift.io/role,
           operator: In,
           values: [worker, worker-cnf],
        }
  paused: false
  nodeSelector:
    matchLabels:
      node-role.kubernetes.io/worker-cnf: ""
      3
      Copy to Clipboard Toggle word wrap

      1
      2
      3 

    2. $ oc apply -f mcp-worker-cnf.yaml
      Copy to Clipboard Toggle word wrap 

      machineconfigpool.machineconfiguration.openshift.io/worker-cnf created
      Copy to Clipboard Toggle word wrap 

  • $ oc get mcp
    Copy to Clipboard Toggle word wrap 

    NAME         CONFIG                                                 UPDATED   UPDATING   DEGRADED   MACHINECOUNT   READYMACHINECOUNT   UPDATEDMACHINECOUNT   DEGRADEDMACHINECOUNT   AGE
master       rendered-master-58433c7c3c1b4ed5ffef95234d451490       True      False      False      3              3                   3                     0                      6h46m
worker       rendered-worker-168f52b168f151e4f853259729b6azc4       True      False      False      2              2                   2                     0                      6h46m
worker-cnf   rendered-worker-cnf-168f52b168f151e4f853259729b6azc4   True      False      False      1              1                   1                     0                      73s
    Copy to Clipboard Toggle word wrap

15.1.3.
링크 복사

  2. $ oc adm must-gather
    Copy to Clipboard Toggle word wrap 

  3. $ tar cvaf must-gather.tar.gz <must_gather_folder>
    1
    Copy to Clipboard Toggle word wrap
    1
    참고

15.1.4.
링크 복사

중요

  1. $ oc get mcp
    Copy to Clipboard Toggle word wrap 

    NAME         CONFIG                                                 UPDATED   UPDATING   DEGRADED   MACHINECOUNT   READYMACHINECOUNT   UPDATEDMACHINECOUNT   DEGRADEDMACHINECOUNT   AGE
master       rendered-master-58433c8c3c0b4ed5feef95434d455490       True      False      False      3              3                   3                     0                      8h
worker       rendered-worker-668f56a164f151e4a853229729b6adc4       True      False      False      2              2                   2                     0                      8h
worker-cnf   rendered-worker-cnf-668f56a164f151e4a853229729b6adc4   True      False      False      1              1                   1                     0                      79m
    Copy to Clipboard Toggle word wrap 

  2. $ podman login registry.redhat.io
    Copy to Clipboard Toggle word wrap 
    Username: <user_name>
Password: <password>
    Copy to Clipboard Toggle word wrap 

  3. $ podman run --rm --entrypoint performance-profile-creator registry.redhat.io/openshift4/ose-cluster-node-tuning-rhel9-operator:v4.15 -h
    Copy to Clipboard Toggle word wrap 

    A tool that automates creation of Performance Profiles

Usage:
  performance-profile-creator [flags]

Flags:
      --disable-ht                        Disable Hyperthreading
  -h, --help                              help for performance-profile-creator
      --info string                       Show cluster information; requires --must-gather-dir-path, ignore the other arguments. [Valid values: log, json] (default "log")
      --mcp-name string                   MCP name corresponding to the target machines (required)
      --must-gather-dir-path string       Must gather directory path (default "must-gather")
      --offlined-cpu-count int            Number of offlined CPUs
      --per-pod-power-management          Enable Per Pod Power Management
      --power-consumption-mode string     The power consumption mode.  [Valid values: default, low-latency, ultra-low-latency] (default "default")
      --profile-name string               Name of the performance profile to be created (default "performance")
      --reserved-cpu-count int            Number of reserved CPUs (required)
      --rt-kernel                         Enable Real Time Kernel (required)
      --split-reserved-cpus-across-numa   Split the Reserved CPUs across NUMA nodes
      --topology-manager-policy string    Kubelet Topology Manager Policy of the performance profile to be created. [Valid values: single-numa-node, best-effort, restricted] (default "restricted")
      --user-level-networking             Run with User level Networking(DPDK) enabled
    Copy to Clipboard Toggle word wrap 

  4. $ podman run --entrypoint performance-profile-creator -v <path_to_must_gather>:/must-gather:z registry.redhat.io/openshift4/ose-cluster-node-tuning-rhel9-operator:v4.15 --info log --must-gather-dir-path /must-gather
    Copy to Clipboard Toggle word wrap 

    • level=info msg="Cluster info:"
level=info msg="MCP 'master' nodes:"
level=info msg=---
level=info msg="MCP 'worker' nodes:"
level=info msg="Node: host.example.com (NUMA cells: 1, HT: true)"
level=info msg="NUMA cell 0 : [0 1 2 3]"
level=info msg="CPU(s): 4"
level=info msg="Node: host1.example.com (NUMA cells: 1, HT: true)"
level=info msg="NUMA cell 0 : [0 1 2 3]"
level=info msg="CPU(s): 4"
level=info msg=---
level=info msg="MCP 'worker-cnf' nodes:"
level=info msg="Node: host2.example.com (NUMA cells: 1, HT: true)"
level=info msg="NUMA cell 0 : [0 1 2 3]"
level=info msg="CPU(s): 4"
level=info msg=---
      Copy to Clipboard Toggle word wrap 

  5. $ podman run --entrypoint performance-profile-creator -v <path_to_must_gather>:/must-gather:z registry.redhat.io/openshift4/ose-cluster-node-tuning-rhel9-operator:v4.15 --mcp-name=worker-cnf --reserved-cpu-count=1 --rt-kernel=true --split-reserved-cpus-across-numa=false --must-gather-dir-path /must-gather --power-consumption-mode=ultra-low-latency --offlined-cpu-count=1 > my-performance-profile.yaml
    Copy to Clipboard Toggle word wrap

    • 참고

      level=info msg="Nodes targeted by worker-cnf MCP are: [worker-2]"
level=info msg="NUMA cell(s): 1"
level=info msg="NUMA cell 0 : [0 1 2 3]"
level=info msg="CPU(s): 4"
level=info msg="1 reserved CPUs allocated: 0 "
level=info msg="2 isolated CPUs allocated: 2-3"
level=info msg="Additional Kernel Args based on configuration: []"
      Copy to Clipboard Toggle word wrap 

  6. $ cat my-performance-profile.yaml
    Copy to Clipboard Toggle word wrap 

    ---
apiVersion: performance.openshift.io/v2
kind: PerformanceProfile
metadata:
  name: performance
spec:
  cpu:
    isolated: 2-3
    offlined: "1"
    reserved: "0"
  machineConfigPoolSelector:
    machineconfiguration.openshift.io/role: worker-cnf
  nodeSelector:
    node-role.kubernetes.io/worker-cnf: ""
  numa:
    topologyPolicy: restricted
  realTimeKernel:
    enabled: true
  workloadHints:
    highPowerConsumption: true
    perPodPowerManagement: false
    realTime: true
    Copy to Clipboard Toggle word wrap 

  7. $ oc apply -f my-performance-profile.yaml
    Copy to Clipboard Toggle word wrap 

    performanceprofile.performance.openshift.io/performance created
    Copy to Clipboard Toggle word wrap

15.1.5.
링크 복사

중요

  1. $ vi run-perf-profile-creator.sh
    Copy to Clipboard Toggle word wrap 

  2. #!/bin/bash

readonly CONTAINER_RUNTIME=${CONTAINER_RUNTIME:-podman}
readonly CURRENT_SCRIPT=$(basename "$0")
readonly CMD="${CONTAINER_RUNTIME} run --entrypoint performance-profile-creator"
readonly IMG_EXISTS_CMD="${CONTAINER_RUNTIME} image exists"
readonly IMG_PULL_CMD="${CONTAINER_RUNTIME} image pull"
readonly MUST_GATHER_VOL="/must-gather"

NTO_IMG="registry.redhat.io/openshift4/ose-cluster-node-tuning-rhel9-operator:v4.15"
MG_TARBALL=""
DATA_DIR=""

usage() {
  print "Wrapper usage:"
  print "  ${CURRENT_SCRIPT} [-h] [-p image][-t path] -- [performance-profile-creator flags]"
  print ""
  print "Options:"
  print "   -h                 help for ${CURRENT_SCRIPT}"
  print "   -p                 Node Tuning Operator image"
  print "   -t                 path to a must-gather tarball"

  ${IMG_EXISTS_CMD} "${NTO_IMG}" && ${CMD} "${NTO_IMG}" -h
}

function cleanup {
  [ -d "${DATA_DIR}" ] && rm -rf "${DATA_DIR}"
}
trap cleanup EXIT

exit_error() {
  print "error: $*"
  usage
  exit 1
}

print() {
  echo  "$*" >&2
}

check_requirements() {
  ${IMG_EXISTS_CMD} "${NTO_IMG}" || ${IMG_PULL_CMD} "${NTO_IMG}" || \
      exit_error "Node Tuning Operator image not found"

  [ -n "${MG_TARBALL}" ] || exit_error "Must-gather tarball file path is mandatory"
  [ -f "${MG_TARBALL}" ] || exit_error "Must-gather tarball file not found"

  DATA_DIR=$(mktemp -d -t "${CURRENT_SCRIPT}XXXX") || exit_error "Cannot create the data directory"
  tar -zxf "${MG_TARBALL}" --directory "${DATA_DIR}" || exit_error "Cannot decompress the must-gather tarball"
  chmod a+rx "${DATA_DIR}"

  return 0
}

main() {
  while getopts ':hp:t:' OPT; do
    case "${OPT}" in
      h)
        usage
        exit 0
        ;;
      p)
        NTO_IMG="${OPTARG}"
        ;;
      t)
        MG_TARBALL="${OPTARG}"
        ;;
      ?)
        exit_error "invalid argument: ${OPTARG}"
        ;;
    esac
  done
  shift $((OPTIND - 1))

  check_requirements || exit 1

  ${CMD} -v "${DATA_DIR}:${MUST_GATHER_VOL}:z" "${NTO_IMG}" "$@" --must-gather-dir-path "${MUST_GATHER_VOL}"
  echo "" 1>&2
}

main "$@"
    Copy to Clipboard Toggle word wrap 

  3. $ chmod a+x run-perf-profile-creator.sh
    Copy to Clipboard Toggle word wrap 

  4. $ podman login registry.redhat.io
    Copy to Clipboard Toggle word wrap 
    Username: <user_name>
Password: <password>
    Copy to Clipboard Toggle word wrap 

  5. $ ./run-perf-profile-creator.sh -h
    Copy to Clipboard Toggle word wrap 

    Wrapper usage:
  run-perf-profile-creator.sh [-h] [-p image][-t path] -- [performance-profile-creator flags]

Options:
   -h                 help for run-perf-profile-creator.sh
   -p                 Node Tuning Operator image
   -t                 path to a must-gather tarball
A tool that automates creation of Performance Profiles

Usage:
  performance-profile-creator [flags]

Flags:
      --disable-ht                        Disable Hyperthreading
  -h, --help                              help for performance-profile-creator
      --info string                       Show cluster information; requires --must-gather-dir-path, ignore the other arguments. [Valid values: log, json] (default "log")
      --mcp-name string                   MCP name corresponding to the target machines (required)
      --must-gather-dir-path string       Must gather directory path (default "must-gather")
      --offlined-cpu-count int            Number of offlined CPUs
      --per-pod-power-management          Enable Per Pod Power Management
      --power-consumption-mode string     The power consumption mode.  [Valid values: default, low-latency, ultra-low-latency] (default "default")
      --profile-name string               Name of the performance profile to be created (default "performance")
      --reserved-cpu-count int            Number of reserved CPUs (required)
      --rt-kernel                         Enable Real Time Kernel (required)
      --split-reserved-cpus-across-numa   Split the Reserved CPUs across NUMA nodes
      --topology-manager-policy string    Kubelet Topology Manager Policy of the performance profile to be created. [Valid values: single-numa-node, best-effort, restricted] (default "restricted")
      --user-level-networking             Run with User level Networking(DPDK) enabled
    Copy to Clipboard Toggle word wrap

    참고

  6. $ ./run-perf-profile-creator.sh -t /<path_to_must_gather_dir>/must-gather.tar.gz -- --info=log
    Copy to Clipboard Toggle word wrap 

    • level=info msg="Cluster info:"
level=info msg="MCP 'master' nodes:"
level=info msg=---
level=info msg="MCP 'worker' nodes:"
level=info msg="Node: host.example.com (NUMA cells: 1, HT: true)"
level=info msg="NUMA cell 0 : [0 1 2 3]"
level=info msg="CPU(s): 4"
level=info msg="Node: host1.example.com (NUMA cells: 1, HT: true)"
level=info msg="NUMA cell 0 : [0 1 2 3]"
level=info msg="CPU(s): 4"
level=info msg=---
level=info msg="MCP 'worker-cnf' nodes:"
level=info msg="Node: host2.example.com (NUMA cells: 1, HT: true)"
level=info msg="NUMA cell 0 : [0 1 2 3]"
level=info msg="CPU(s): 4"
level=info msg=---
      Copy to Clipboard Toggle word wrap 

  7. $ ./run-perf-profile-creator.sh -t /path-to-must-gather/must-gather.tar.gz -- --mcp-name=worker-cnf --reserved-cpu-count=1 --rt-kernel=true --split-reserved-cpus-across-numa=false --power-consumption-mode=ultra-low-latency --offlined-cpu-count=1 > my-performance-profile.yaml
    Copy to Clipboard Toggle word wrap

    • 참고

  8. $ cat my-performance-profile.yaml
    Copy to Clipboard Toggle word wrap 

    ---
apiVersion: performance.openshift.io/v2
kind: PerformanceProfile
metadata:
  name: performance
spec:
  cpu:
    isolated: 2-3
    offlined: "1"
    reserved: "0"
  machineConfigPoolSelector:
    machineconfiguration.openshift.io/role: worker-cnf
  nodeSelector:
    node-role.kubernetes.io/worker-cnf: ""
  numa:
    topologyPolicy: restricted
  realTimeKernel:
    enabled: true
  workloadHints:
    highPowerConsumption: true
    perPodPowerManagement: false
    realTime: true
    Copy to Clipboard Toggle word wrap 

  9. $ oc apply -f my-performance-profile.yaml
    Copy to Clipboard Toggle word wrap 

    performanceprofile.performance.openshift.io/performance created
    Copy to Clipboard Toggle word wrap

15.1.6.
링크 복사

Expand
표 15.1.
  

Expand
표 15.2.
  

주의

참고

Error: failed to compute the reserved and isolated CPUs: please ensure that reserved-cpu-count plus offlined-cpu-count should be in the range [0,1]
Copy to Clipboard Toggle word wrap 
Error: failed to compute the reserved and isolated CPUs: please specify the offlined CPU count in the range [0,1]
Copy to Clipboard Toggle word wrap

15.1.7.
링크 복사

15.1.7.1.
링크 복사

apiVersion: performance.openshift.io/v2
kind: PerformanceProfile
metadata:
  name: cnf-performanceprofile
spec:
  additionalKernelArgs:
    - nmi_watchdog=0
    - audit=0
    - mce=off
    - processor.max_cstate=1
    - idle=poll
    - intel_idle.max_cstate=0
    - default_hugepagesz=1GB
    - hugepagesz=1G
    - intel_iommu=on
  cpu:
    isolated: <CPU_ISOLATED>
    reserved: <CPU_RESERVED>
  hugepages:
    defaultHugepagesSize: 1G
    pages:
      - count: <HUGEPAGES_COUNT>
        node: 0
        size: 1G
  nodeSelector:
    node-role.kubernetes.io/worker: ''
  globallyDisableIrqLoadBalancing: true
  realTimeKernel:
    enabled: false
Copy to Clipboard Toggle word wrap

15.1.7.2.
링크 복사

apiVersion: performance.openshift.io/v2
kind: PerformanceProfile
metadata:
  # if you change this name make sure the 'include' line in TunedPerformancePatch.yaml
  # matches this name: include=openshift-node-performance-${PerformanceProfile.metadata.name}
  # Also in file 'validatorCRs/informDuValidator.yaml':
  # name: 50-performance-${PerformanceProfile.metadata.name}
  name: openshift-node-performance-profile
  annotations:
    ran.openshift.io/reference-configuration: "ran-du.redhat.com"
spec:
  additionalKernelArgs:
    - "rcupdate.rcu_normal_after_boot=0"
    - "efi=runtime"
    - "vfio_pci.enable_sriov=1"
    - "vfio_pci.disable_idle_d3=1"
    - "module_blacklist=irdma"
  cpu:
    isolated: $isolated
    reserved: $reserved
  hugepages:
    defaultHugepagesSize: $defaultHugepagesSize
    pages:
      - size: $size
        count: $count
        node: $node
  machineConfigPoolSelector:
    pools.operator.machineconfiguration.openshift.io/$mcp: ""
  nodeSelector:
    node-role.kubernetes.io/$mcp: ''
  numa:
    topologyPolicy: "restricted"
  # To use the standard (non-realtime) kernel, set enabled to false
  realTimeKernel:
    enabled: true
  workloadHints:
    # WorkloadHints defines the set of upper level flags for different type of workloads.
    # See https://github.com/openshift/cluster-node-tuning-operator/blob/master/docs/performanceprofile/performance_profile.md#workloadhints
    # for detailed descriptions of each item.
    # The configuration below is set for a low latency, performance mode.
    realTime: true
    highPowerConsumption: false
    perPodPowerManagement: false
Copy to Clipboard Toggle word wrap

15.1.7.3.
링크 복사

apiVersion: performance.openshift.io/v2
kind: PerformanceProfile
metadata:
  # if you change this name make sure the 'include' line in TunedPerformancePatch.yaml
  # matches this name: include=openshift-node-performance-${PerformanceProfile.metadata.name}
  # Also in file 'validatorCRs/informDuValidator.yaml':
  # name: 50-performance-${PerformanceProfile.metadata.name}
  name: openshift-node-performance-profile
  annotations:
    ran.openshift.io/reference-configuration: "ran-du.redhat.com"
spec:
  additionalKernelArgs:
    - "rcupdate.rcu_normal_after_boot=0"
    - "efi=runtime"
    - "vfio_pci.enable_sriov=1"
    - "vfio_pci.disable_idle_d3=1"
    - "module_blacklist=irdma"
  cpu:
    isolated: $isolated
    reserved: $reserved
  hugepages:
    defaultHugepagesSize: $defaultHugepagesSize
    pages:
      - size: $size
        count: $count
        node: $node
  machineConfigPoolSelector:
    pools.operator.machineconfiguration.openshift.io/$mcp: ""
  nodeSelector:
    node-role.kubernetes.io/$mcp: ''
  numa:
    topologyPolicy: "restricted"
  # To use the standard (non-realtime) kernel, set enabled to false
  realTimeKernel:
    enabled: true
  workloadHints:
    # WorkloadHints defines the set of upper level flags for different type of workloads.
    # See https://github.com/openshift/cluster-node-tuning-operator/blob/master/docs/performanceprofile/performance_profile.md#workloadhints
    # for detailed descriptions of each item.
    # The configuration below is set for a low latency, performance mode.
    realTime: true
    highPowerConsumption: false
    perPodPowerManagement: false
Copy to Clipboard Toggle word wrap

맨 위로 이동
Red Hat logoGithubredditYoutubeTwitter

자세한 정보

평가판, 구매 및 판매

커뮤니티

Red Hat 문서 정보

Red Hat을 사용하는 고객은 신뢰할 수 있는 콘텐츠가 포함된 제품과 서비스를 통해 혁신하고 목표를 달성할 수 있습니다. 최신 업데이트를 확인하세요.

보다 포괄적 수용을 위한 오픈 소스 용어 교체

Red Hat은 코드, 문서, 웹 속성에서 문제가 있는 언어를 교체하기 위해 최선을 다하고 있습니다. 자세한 내용은 다음을 참조하세요.Red Hat 블로그.

Red Hat 소개

Red Hat은 기업이 핵심 데이터 센터에서 네트워크 에지에 이르기까지 플랫폼과 환경 전반에서 더 쉽게 작업할 수 있도록 강화된 솔루션을 제공합니다.

Theme

© 2025 Red Hat