diff --git a/script/production b/script/production
index e11bc1a..4380f2d 100755
--- a/script/production
+++ b/script/production
@@ -30,7 +30,7 @@ do_start() {
   clear_cache
   environments_loop start
   bundle exec whenever --write-crontab --set 'environment=production'
-  ruby -S bundle exec thin -C config/thin.yml start
+  RUBY_GC_MALLOC_LIMIT=250000000 RUBY_HEAP_MIN_SLOTS=800000 RUBY_FREE_MIN=32768 ruby -S bundle exec thin -C config/thin.yml start
 }
 
 do_stop() {
@@ -85,9 +85,7 @@ environments_loop() {
 }
 
 do_running() {
-  pids=$(sed "s/.*/& /" tmp/pids/thin.*.pid | tr -d '\n' 2>/dev/null || true)
-  # passes if any of $pids exist, fails otherwise
-  kill -0 $pids > /dev/null 2>&1
+  pgrep -u noosfero -f 'thin server' > /dev/null
 }
 
 case "$ACTION" in
--
libgit2 0.21.2