Buffer management performence results

                     
                     
  Original Postgres 9.3devel     SELECT ONLY  
                     
  SIZE 16GB-2GB 16GB-2GB 16GB-2GB 16GB-2GB  
  Clients 8C / 8T 16C / 16T 32C / 32T 64C / 64T  
  RUN-1 54776 98603386 53078 95553122 49599 89303327 41925 75693623  
  RUN-2 54732 98522194 53068 95543480 49421 88991364 41818 75333318  
  RUN-3 54860 98756859 52980 95380498 49503 89133640 41602 75086132  
  RUN-4 54887 98801388 53005 95424912 49434 89014009 41788 75409361  
  Average 54814 98670957 53033 95475503 49489 89110585 41783 75380609  
                     
                     
  Bgwriter/Checkpoint process moving unused bufferes to Free List modification  
                     
  SIZE 16GB-2GB 16GB-2GB 16GB-2GB 16GB-2GB  
  Clients 8C / 8T 16C / 16T 32C / 32T 64C / 64T  
  RUN-1 50255 90465215 53557 96413871 49167 88531712 41641 75211758  
  RUN-2 51604 92894113 53424 96177581 49103 88421803 41440 74835088  
  RUN-3 48718 87693582 53282 95920251 49055 88330214 41727 75180863  
  RUN-4 49367 88866592 53273 95905700 49087 88368513 41440 74824832  
  Average 49986 89979876 53384 96104351 49103 88413061 41562 75013135  
                     
                     
  Diff in % With Original            
                     
  Difference -8.808 -8.808 0.662 0.6586 -0.78 -0.783 -0.529 -0.487