zbatery use least memory.

Gemfile

@@ -21,7 +21,7 @@ gem 'sanitize'
 gem 'carrierwave', :require => ['carrierwave', 'carrierwave/orm/activerecord']
 gem 'mini_magick'
 gem 'rest-client'
-gem 'puma'
+gem 'zbatery'
 
 # Production requirements
 # group :production do

Gemfile.lock

@@ -71,13 +71,16 @@ GEM
       slop (~> 3.4)
     pry-padrino (0.1.2)
       pry (>= 0.8)
-    puma (2.0.1)
-      rack (>= 1.1, < 2.0)
     rack (1.5.2)
     rack-protection (1.5.0)
       rack
     rack-test (0.6.2)
       rack (>= 1.0)
+    rainbows (4.5.0)
+      kgio (~> 2.5)
+      rack (~> 1.1)
+      unicorn (~> 4.6, >= 4.6.2)
+    raindrops (0.11.0)
     rake (10.0.4)
     rest-client (1.6.7)
       mime-types (>= 1.16)
@@ -92,9 +95,15 @@ GEM
     thor (0.17.0)
     tilt (1.3.7)
     tzinfo (0.3.37)
+    unicorn (4.6.2)
+      kgio (~> 2.6)
+      rack
+      raindrops (~> 0.7)
     url_mount (0.2.1)
       rack
     will_paginate (3.0.4)
+    zbatery (4.1.2)
+      rainbows (~> 4.3)
 
 PLATFORMS
   ruby
@@ -117,11 +126,11 @@ DEPENDENCIES
   padrino-gen (~> 0.11)
   padrino-helpers (~> 0.11)
   pry-padrino
-  puma
   rack-test
   rake
   rest-client
   sanitize
   second_level_cache!
   tilt (~> 1.3.7)
   will_paginate
+  zbatery

config/rainbows.rb

@@ -16,7 +16,7 @@
 
 # Use at least one worker per core if you're on a dedicated server,
 # more will usually help for _short_ waits on databases/caches.
-worker_processes 1
+worker_processes 2
 
 # If running the master process as root and the workers as an unprivileged
 # user, do this to switch euid/egid in the workers (also chowns logs):

puma.sh

@@ -16,7 +16,7 @@ case "$1" in
     bundle exec pumactl -S $state_file stop
     ;;
   restart)
-	  bundle exec pumactl -S $state_file restart
+    bundle exec pumactl -S $state_file restart
     ;;
   status)
     bundle exec pumactl -S $state_file status

zbatery.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+# set ruby GC parameters
+RUBY_HEAP_MIN_SLOTS=600000
+RUBY_FREE_MIN=200000
+RUBY_GC_MALLOC_LIMIT=60000000
+export RUBY_HEAP_MIN_SLOTS RUBY_FREE_MIN RUBY_GC_MALLOC_LIMIT
+
+pid="log/rainbows.pid"
+
+case "$1" in
+  start)
+    bundle exec zbatery -c config/rainbows.rb -E production -D
+    ;;
+  stop)
+    kill `cat $pid`
+    ;;
+  force-stop)
+    kill -9 `cat $pid`
+    ;;
+  restart)
+    $0 stop
+    sleep 2
+    $0 start
+    ;;
+  reload)
+    kill -USR2 `cat $pid`
+    ;;
+  *)
+    echo $"Usage: $0 {start|stop|force-stop|restart|reload}"
+    ;;
+esac