diff --git a/script/ci/before.sh b/script/ci/before.sh
index 4e48e425e1ef6b95007c5345ae1b98a54b555684..58f4ed22ad80e78fe247318fa4b9182308d7e544 100755
--- a/script/ci/before.sh
+++ b/script/ci/before.sh
@@ -14,7 +14,7 @@ sh -e /etc/init.d/xvfb start
 
 # setup swapfile
 echo "creating a swapfile"
-sudo dd if=/dev/zero of=swapfile bs=1M count=64
+sudo dd if=/dev/zero of=swapfile bs=1M count=128
 sudo mkswap swapfile
 sudo swapon swapfile
 
diff --git a/spec/support/deferred_garbage_collection.rb b/spec/support/deferred_garbage_collection.rb
index 4461c9397bc5b8360380dff817aa52adceb90d31..fd6e5865ffb43718de869704bc85729c1bc67b20 100644
--- a/spec/support/deferred_garbage_collection.rb
+++ b/spec/support/deferred_garbage_collection.rb
@@ -12,9 +12,9 @@ class DeferredGarbageCollection
   end
 
   def self.memory_threshold
-    mem = %x(free 2>/dev/null).to_s.split(" ")
-    return nil if mem.empty?
-    mem[8].to_i / (mem[7].to_i/100)
+    @mem = %x(free 2>/dev/null).to_s.split(" ")
+    return nil if @mem.empty?
+    @mem[8].to_i / (@mem[7].to_i/100)
   end
 
   def self.reconsider
@@ -22,7 +22,11 @@ class DeferredGarbageCollection
 
     if (percent_used = self.memory_threshold)
       running_out_of_memory = percent_used > 90
-      puts "percent memory used #{percent_used}" # just for info, as soon as we got some numbers remove it
+
+      # just for info, as soon as we got some numbers remove it
+      swap_percent_used = @mem[19].to_i / (@mem[18].to_i/100) rescue 0
+      puts "percent memory used #{percent_used} (#{@mem[8]} of #{@mem[7]})"
+      puts "percent swap used   #{swap_percent_used} (#{@mem[19]} of #{@mem[18]})"
     else
       running_out_of_memory = false
     end