https://community.hpe.com/t5/operating-system-hp-ux/high-memory-usage/m-p/3955151#M290900 If you are running the default dbc_max_pct value of 50% then reduce it so that it is down in the 10% or so range.<BR /><BR />Note your po (pageout) column in vmstat, it's not very big but it's not zero. Ideally, you want that value at 0 all the time. <BR /><BR />You have a few options: 1) Add more memory 2) Reduce buffer cache 3) Reduce the size of the SGA.<BR /><BR />Above all, reducing the size of the SGA is far better by a factor of at least 100 than allowing the system to pageout to any significant degree.<BR /> Sun, 04 Mar 2007 15:12:19 GMT A. Clay Stephenson 2007-03-04T15:12:19Z https://community.hpe.com/t5/operating-system-hp-ux/high-memory-usage/m-p/3955150#M290899 Hello guys<BR />I'm using Oracle RAC10g on HP-UX V2.<BR />The usage of memory is too high.<BR /><BR />Glance output :<BR />CPU 18% 18% 18%<BR />Disk 52% 52% 52%<BR />Mem 97% 97% 97%<BR />Swap 84% 84% 84%<BR /><BR />#vmstat :<BR /><BR />procs memory page faults cpu<BR />r b w avm free re at pi po fr de sr in sy cs us sy id<BR />2 1 0 1173615 58333 509 159 4 4 0 0 51 1854 70047 1187 8 2 89<BR /><BR /><BR /><BR />#swapinfo -tam<BR /> Mb Mb Mb PCT START/ Mb<BR />TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME<BR />dev 4096 1145 2951 28% 0 - 1 /dev/vg00/lvol2<BR />dev 4096 1149 2947 28% 0 - 1 /dev/vg00/lvol3<BR />reserve - 5880 -5880<BR />memory 8180 5739 2441 70%<BR />total 16372 13913 2459 85% - 0 <BR /><BR />What your idea about memory usage ?<BR /> Sun, 04 Mar 2007 07:31:03 GMT https://community.hpe.com/t5/operating-system-hp-ux/high-memory-usage/m-p/3955150#M290899 manamirhastam 2007-03-04T07:31:03Z https://community.hpe.com/t5/operating-system-hp-ux/high-memory-usage/m-p/3955151#M290900 If you are running the default dbc_max_pct value of 50% then reduce it so that it is down in the 10% or so range.<BR /><BR />Note your po (pageout) column in vmstat, it's not very big but it's not zero. Ideally, you want that value at 0 all the time. <BR /><BR />You have a few options: 1) Add more memory 2) Reduce buffer cache 3) Reduce the size of the SGA.<BR /><BR />Above all, reducing the size of the SGA is far better by a factor of at least 100 than allowing the system to pageout to any significant degree.<BR /> Sun, 04 Mar 2007 15:12:19 GMT https://community.hpe.com/t5/operating-system-hp-ux/high-memory-usage/m-p/3955151#M290900 A. Clay Stephenson 2007-03-04T15:12:19Z