BTW: Are you sure system doing wrong? System may save some pages to swap not removing them from RAM simply to have possibility to remove them later fast if needed.
2012/4/14 ruslan usifov <ruslan.usi...@gmail.com> > Hello > > We have 6 node cluster (cassandra 0.8.10). On one node i increase java > heap size to 6GB, and now at this node begin grows swap, but system have > about 3GB of free memory: > > > root@6wd003:~# free > total used free shared buffers cached > Mem: 24733664 21702812 3030852 0 6792 13794724 > -/+ buffers/cache: 7901296 16832368 > Swap: 1998840 2352 1996488 > > > And swap space slowly grows, but i misunderstand why? > > > PS: We have JNA mlock, and set vm.swappiness = 0 > PS: OS ubuntu 10.0.4(2.6.32-40-generic) > > > -- Best regards, Vitalii Tymchyshyn
