问Rails在使用Postgresql的基于Rancher的Docker环境中运行缓慢

EN

Object.where(view: 0).each { |obj| obj.update_columns(view: 1) }

Benchmark.bm do |x|
  x.report { 1000.times do Object.first.update_columns(view: 0) end }
end

       user     system      total        real
   2.472000   0.216000   2.688000 (  4.719130)

       user     system      total        real
   1.961856   0.164141   2.125997 ( 14.161671)

time bundle exec rake environment
real    0m2,164s
user    0m1,717s
sys     0m0,423s

Benchmark.ms { Rails.application.eager_load! }
=> 16.18773490190506

FROM ruby:2.6.6-slim
LABEL maintainer="my@email.com"

WORKDIR /app

EXPOSE 3000

# Set the locale
RUN apt-get update && \
    apt-get install -y locales

RUN sed -i -e 's/# de_DE.UTF-8 UTF-8/de_DE.UTF-8 UTF-8/' /etc/locale.gen && \
    locale-gen de_DE.UTF-8

ENV LANG=de_DE.UTF-8 \
    LANGUAGE=de_DE:de \
    LC_ALL=de_DE.UTF-8

RUN echo "set input-meta on" >> /etc/inputrc && \
    echo "set output-meta on" >> /etc/inputrc && \
    echo "set convert-meta off" >> /etc/inputrc && \
    echo "export LANG=de_DE.utf8" >> /etc/profile && \
    cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime

# install bundler
RUN gem install bundler

# install some tools
RUN apt-get install -y cron build-essential git nodejs imagemagick libpq-dev

# Rails ENV
ARG RAILS_ENV=production

# BUNDLER options
ARG BUNDLER_OPTS=" --without development test"

# clean up
RUN apt-get autoremove -y

# dummy start command
CMD ["/bin/bash"]

FROM mytag/my_ruby_2_6_6
LABEL maintainer="my@email.com"

ARG RAILS_ENV=production

COPY Gemfile* ./

# install rubygem
COPY Gemfile Gemfile.lock /app/
RUN bundle config git.allow_insecure true && \
    bundle install --jobs 20 $BUNDLER_OPTS

COPY . /app

RUN rails assets:precompile

WORKDIR /app

# Expose Puma port
EXPOSE 3000

# Start up
CMD ["docker/startup.sh"]

#! /bin/sh
bundle exec rake db:migrate
echo "Migration Done!"

bundle exec rails s -b 0.0.0.0

apiVersion: apps/v1beta2
kind: Deployment
metadata:
  annotations:
    deployment.kubernetes.io/revision: "58"
  creationTimestamp: "2019-06-03T19:03:28Z"
  generation: 75
  labels:
    workload.user.cattle.io/workloadselector: deployment-railsapp-railsapp
  name: railsapp
  namespace: railsapp
  resourceVersion: "2133509"
  selfLink: /apis/apps/v1beta2/namespaces/railsapp/deployments/railsapp
spec:
  progressDeadlineSeconds: 600
  replicas: 5
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      workload.user.cattle.io/workloadselector: deployment-railsapp-railsapp
  strategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
    type: RollingUpdate
  template:
    metadata:
      annotations:
        cattle.io/timestamp: "2019-06-18T12:40:43Z"
      creationTimestamp: null
      labels:
        workload.user.cattle.io/workloadselector: deployment-railsapp-railsapp
    spec:
      affinity: {}
      containers:
      - env:
        - name: DB_HOST
          value: 172.17.0.1
        image: myapp/railsapp:master-4996
        imagePullPolicy: Always
        livenessProbe:
          failureThreshold: 10
          initialDelaySeconds: 70
          periodSeconds: 5
          successThreshold: 1
          tcpSocket:
            port: 3000
          timeoutSeconds: 2
        name: railsapp
        readinessProbe:
          failureThreshold: 10
          initialDelaySeconds: 70
          periodSeconds: 5
          successThreshold: 2
          tcpSocket:
            port: 3000
          timeoutSeconds: 2
        resources: {}
        securityContext:
          allowPrivilegeEscalation: false
          capabilities: {}
          privileged: false
          procMount: Default
          readOnlyRootFilesystem: false
          runAsNonRoot: false
        stdin: true
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        tty: true
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30
status:
  availableReplicas: 5
  conditions:
  - lastTransitionTime: "2019-06-18T12:33:27Z"
    lastUpdateTime: "2019-06-18T12:33:27Z"
    message: Deployment has minimum availability.
    reason: MinimumReplicasAvailable
    status: "True"
    type: Available
  - lastTransitionTime: "2019-06-11T08:22:59Z"
    lastUpdateTime: "2019-06-21T13:11:49Z"
    message: ReplicaSet "railsapp-958579c56" has successfully progressed.
    reason: NewReplicaSetAvailable
    status: "True"
    type: Progressing
  observedGeneration: 75
  readyReplicas: 5
  replicas: 5
  updatedReplicas: 5