Make --jemalloc the default (Rails 8 parity)

lib/generators/dockerfile_generator.rb

@@ -16,7 +16,7 @@ class DockerfileGenerator < Rails::Generators::Base
     "compose" => false,
     "fullstaq" => false,
     "gemfile-updates" => true,
-    "jemalloc" => false,
+    "jemalloc" => true,
     "label" => {},
     "link" => false,
     "litefs" => false,
@@ -996,8 +996,8 @@ def deploy_env
     end
 
     if options.jemalloc? && !options.fullstaq?
-      env["LD_PRELOAD"] = "libjemalloc.so.2"
-      env["MALLOC_CONF"] = "dirty_decay_ms:1000,narenas:2,background_thread:true"
+      # env["LD_PRELOAD"] = "libjemalloc.so.2"
+      # env["MALLOC_CONF"] = "dirty_decay_ms:1000,narenas:2,background_thread:true"
     end
 
     if using_puppeteer?

lib/generators/templates/docker-entrypoint.erb

@@ -4,6 +4,14 @@
 #!/bin/bash -e
 <% end -%>
 
+<% if options.jemalloc? -%>
+# Enable jemalloc for reduced memory usage and latency.
+if [ -z "${LD_PRELOAD+x}" ]; then
+    LD_PRELOAD=$(find /usr/lib -name libjemalloc.so.2 -print -quit)
+    export LD_PRELOAD
+fi
+
+<% end -%>
 <% if options.swap && !File.exist?("fly.toml")-%>
 <% if run_as_root? or using_passenger? -%>
 <% @space = "" -%>

test/results/alpine/Dockerfile

@@ -65,7 +65,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apk update && \
-    apk add curl libpq postgresql-client && \
+    apk add curl jemalloc libpq postgresql-client && \
     rm -rf /var/cache/apk/*
 
 # Copy built artifacts: gems, application

test/results/alpine/docker-entrypoint

@@ -1,5 +1,11 @@
 #!/bin/sh -e
 
+# Enable jemalloc for reduced memory usage and latency.
+if [ -z "${LD_PRELOAD+x}" ]; then
+    LD_PRELOAD=$(find /usr/lib -name libjemalloc.so.2 -print -quit)
+    export LD_PRELOAD
+fi
+
 # If running the rails server then create or migrate existing database
 if [ "${@: -2:1}" == "./bin/rails" ] && [ "${@: -1:1}" == "server" ]; then
   ./bin/rails db:prepare

test/results/api/Dockerfile

@@ -60,7 +60,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/bin_cd/Dockerfile

@@ -45,7 +45,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/bun/Dockerfile

@@ -56,7 +56,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/cache/Dockerfile

@@ -70,7 +70,7 @@ FROM base
 RUN --mount=type=cache,id=dev-apt-cache,sharing=locked,target=/var/cache/apt \
     --mount=type=cache,id=dev-apt-lib,sharing=locked,target=/var/lib/apt \
     apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0
 
 # Copy built artifacts: gems, application
 COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"

test/results/ci/Dockerfile

@@ -42,7 +42,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/env/Dockerfile

@@ -46,7 +46,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/esbuild/Dockerfile

@@ -59,7 +59,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/execjs_importmap/Dockerfile

@@ -61,7 +61,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/execjs_node/Dockerfile

@@ -69,7 +69,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/grover/Dockerfile

@@ -62,7 +62,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y chromium chromium-sandbox curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y chromium chromium-sandbox curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/idle/Dockerfile

@@ -55,7 +55,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libnginx-mod-http-passenger libsqlite3-0 nginx && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libnginx-mod-http-passenger libsqlite3-0 nginx && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # configure nginx and passenger

test/results/idle/docker-entrypoint

@@ -1,5 +1,11 @@
 #!/bin/bash -e
 
+# Enable jemalloc for reduced memory usage and latency.
+if [ -z "${LD_PRELOAD+x}" ]; then
+    LD_PRELOAD=$(find /usr/lib -name libjemalloc.so.2 -print -quit)
+    export LD_PRELOAD
+fi
+
 # allocate swap space
 fallocate -l 512M /swapfile
 chmod 0600 /swapfile

test/results/jemalloc/Dockerfile

@@ -2,7 +2,7 @@
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
 ARG RUBY_VERSION=xxx
-FROM --platform=linux/amd64 ruby:$RUBY_VERSION-slim AS base
+FROM ruby:$RUBY_VERSION-slim AS base
 
 # Rails app lives here
 WORKDIR /rails
@@ -42,7 +42,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application
@@ -57,9 +57,7 @@ RUN groupadd --system --gid 1000 rails && \
 USER 1000:1000
 
 # Deployment options
-ENV DATABASE_URL="sqlite3:///data/production.sqlite3" \
-    LD_PRELOAD="libjemalloc.so.2" \
-    MALLOC_CONF="dirty_decay_ms:1000,narenas:2,background_thread:true"
+ENV DATABASE_URL="sqlite3:///data/production.sqlite3"
 
 # Entrypoint prepares the database.
 ENTRYPOINT ["/rails/bin/docker-entrypoint"]

test/results/jemalloc/docker-entrypoint

@@ -0,0 +1,8 @@
+#!/bin/bash -e
+
+# If running the rails server then create or migrate existing database
+if [ "${@: -2:1}" == "./bin/rails" ] && [ "${@: -1:1}" == "server" ]; then
+  ./bin/rails db:prepare
+fi
+
+exec "${@}"

test/results/label/Dockerfile

@@ -44,7 +44,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/litefs/Dockerfile

@@ -50,7 +50,7 @@ COPY config/litefs.yml /etc/litefs.yml
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y ca-certificates curl fuse3 libsqlite3-0 sudo && \
+    apt-get install --no-install-recommends -y ca-certificates curl fuse3 libjemalloc2 libsqlite3-0 sudo && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/litefs/docker-entrypoint

@@ -1,5 +1,11 @@
 #!/bin/bash -e
 
+# Enable jemalloc for reduced memory usage and latency.
+if [ -z "${LD_PRELOAD+x}" ]; then
+    LD_PRELOAD=$(find /usr/lib -name libjemalloc.so.2 -print -quit)
+    export LD_PRELOAD
+fi
+
 # mount litefs
 sudo -E litefs mount &
 

test/results/litestream/Dockerfile

@@ -46,7 +46,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/litestream/docker-entrypoint

@@ -1,5 +1,11 @@
 #!/bin/bash -e
 
+# Enable jemalloc for reduced memory usage and latency.
+if [ -z "${LD_PRELOAD+x}" ]; then
+    LD_PRELOAD=$(find /usr/lib -name libjemalloc.so.2 -print -quit)
+    export LD_PRELOAD
+fi
+
 # If running the rails server then create or migrate existing database
 if [ "${@: -5:1}" == "./bin/rake" ] && [ "${@: -4:1}" == litestream:run ] && [ "${@: -3:1}" == "./bin/thrust" ] && [ "${@: -2:1}" == "./bin/rails" ] && [ "${@: -1:1}" == "server" ]; then
   ./bin/rails db:prepare

test/results/minimal/Dockerfile

@@ -42,7 +42,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/mysql/Dockerfile

@@ -46,7 +46,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl default-mysql-client && \
+    apt-get install --no-install-recommends -y curl default-mysql-client libjemalloc2 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/nginx/Dockerfile

@@ -42,7 +42,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 nginx ruby-foreman && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 nginx ruby-foreman && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # configure nginx

test/results/nginx/docker-entrypoint

@@ -1,5 +1,11 @@
 #!/bin/bash -e
 
+# Enable jemalloc for reduced memory usage and latency.
+if [ -z "${LD_PRELOAD+x}" ]; then
+    LD_PRELOAD=$(find /usr/lib -name libjemalloc.so.2 -print -quit)
+    export LD_PRELOAD
+fi
+
 # If running the production procfile then create or migrate existing database
 if [ "${@: -3:1}" == "foreman" ] && [ "${@: -2:1}" == "start" ] && [ "${@: -1:1}" == "--procfile=Procfile.prod" ]; then
   ./bin/rails db:prepare

test/results/no_precompiled_gems/Dockerfile

@@ -43,7 +43,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/no_prep/Dockerfile

@@ -42,7 +42,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/no_prep/docker-entrypoint

@@ -1,5 +1,11 @@
 #!/bin/bash -e
 
+# Enable jemalloc for reduced memory usage and latency.
+if [ -z "${LD_PRELOAD+x}" ]; then
+    LD_PRELOAD=$(find /usr/lib -name libjemalloc.so.2 -print -quit)
+    export LD_PRELOAD
+fi
+
 # Add any container initialization steps here
 
 exec "${@}"

test/results/parallel/Dockerfile

@@ -70,7 +70,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/postgresql/Dockerfile

@@ -46,7 +46,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl postgresql-client && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 postgresql-client && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/precompile_defer/Dockerfile

@@ -34,7 +34,7 @@ RUN bundle exec bootsnap precompile app/ lib/
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Run and own only the runtime files as a non-root user for security

test/results/precompile_defer/docker-entrypoint

@@ -1,5 +1,11 @@
 #!/bin/bash -e
 
+# Enable jemalloc for reduced memory usage and latency.
+if [ -z "${LD_PRELOAD+x}" ]; then
+    LD_PRELOAD=$(find /usr/lib -name libjemalloc.so.2 -print -quit)
+    export LD_PRELOAD
+fi
+
 # If running the rails server then create or migrate existing database
 if [ "${@: -2:1}" == "./bin/rails" ] && [ "${@: -1:1}" == "server" ]; then
   ./bin/rails assets:precompile

test/results/private_gemserver/Dockerfile

@@ -45,7 +45,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/private_gemserver_with_cache/Dockerfile

@@ -55,7 +55,7 @@ FROM base
 RUN --mount=type=cache,id=dev-apt-cache,sharing=locked,target=/var/cache/apt \
     --mount=type=cache,id=dev-apt-lib,sharing=locked,target=/var/lib/apt \
     apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0
 
 # Copy built artifacts: gems, application
 COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"

test/results/redis/Dockerfile

@@ -46,7 +46,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application

test/results/rmagick/Dockerfile

@@ -42,7 +42,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl imagemagick libsqlite3-0 && \
+    apt-get install --no-install-recommends -y curl imagemagick libjemalloc2 libsqlite3-0 && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application