[ruby/rack] Add Pitchfork server

Pitchfork is a preforking HTTP server based on Unicorn (which hasn't
seen an update since 2021).

Author: p8

frameworks/Ruby/rack/Gemfile

@@ -22,6 +22,10 @@ group :iodine, optional: true do
   gem 'iodine', '~> 0.7', platforms: %i[ruby mswin]
 end
 
+group :pitchfork, optional: true do
+  gem 'pitchfork', '~> 0.17'
+end
+
 group :puma, optional: true do
   gem 'puma', '~> 6.5'
 end

frameworks/Ruby/rack/README.md

@@ -18,6 +18,7 @@ The tests were run with:
 * [Puma 6.4](http://puma.io/)
 * [Iodine](https://github.com/boazsegev/iodine)
 * [Falcon](https://github.com/socketry/falcon)
+* [Pitchfork](https://github.com/Shopify/pitchfork)
 * [Sequel 5](https://sequel.jeremyevans.net/)
 
 

frameworks/Ruby/rack/benchmark_config.json

@@ -106,6 +106,27 @@
         "database_os": "Linux",
         "display_name": "rack-puma-jruby-sequel-raw",
         "notes": ""
+      },
+      "pitchfork": {
+        "json_url": "/json",
+        "plaintext_url": "/plaintext",
+        "db_url": "/db",
+        "query_url": "/queries?queries=",
+        "fortune_url": "/fortunes",
+        "update_url": "/updates?queries=",
+        "port": 8080,
+        "approach": "Realistic",
+        "classification": "Platform",
+        "orm": "raw",
+        "database": "Postgres",
+        "framework": "rack",
+        "language": "Ruby",
+        "platform": "Mri",
+        "webserver": "Pitchfork",
+        "os": "Linux",
+        "database_os": "Linux",
+        "display_name": "rack-pitchfork-mri-sequel-raw",
+        "notes": ""
       }
     }
   ]

frameworks/Ruby/rack/config/auto_tune.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+require_relative 'auto_tune'
+require 'sequel'
+num_workers, = auto_tune
+
+worker_processes num_workers
+
+before_fork do |_server|
+  Sequel::DATABASES.each(&:disconnect)
+end

frameworks/Ruby/rack/config/pitchfork.rb

@@ -0,0 +1,22 @@
+FROM ruby:3.4
+
+ENV RUBY_YJIT_ENABLE=1
+
+# Use Jemalloc
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends libjemalloc2
+ENV LD_PRELOAD=libjemalloc.so.2
+
+WORKDIR /rack
+
+COPY Gemfile ./
+
+ENV BUNDLE_FORCE_RUBY_PLATFORM=true
+RUN bundle config set with 'pitchfork'
+RUN bundle install --jobs=8
+
+COPY . .
+
+EXPOSE 8080
+
+CMD bundle exec pitchfork -c config/pitchfork.rb -o 0.0.0.0 -p 8080 -E production