Below is both results... William Warren wrote: > easier way....log in as root and type the word free to get a much > slimmer version of that information. If the numbers look odd(after > posting them here) then the more expansive option below is needed. > > Alfred von Campe wrote: >>> I install centos 5 on a HD while it is in a Compaq with 256Mb >>> memory. After install, i am in graphics mode (Gnome) and top reports >>> not quite all 256Mb used. >>> >>> Then I move the HD to a decTOP with 512Mb memory. I am running >>> non-graphics (init 3). I ssh into the unit and top reports not quite >>> all of that used..... >>> >>> So what ate up more than 256Mb memory (X is not running)? >>> >>> Perhaps there is something I did not clean up properly wrt the move. >> >> Have you done any I/O on the system? The memory could be in use by >> buffers. Please post the contents of /proc/meminfo. Your real free >> memory should be the sum of MemFree + Buffers + Cached. total used free shared buffers cached Mem: 495228 488440 6788 0 21404 310364 -/+ buffers/cache: 156672 338556 Swap: 1572856 0 1572856 MemTotal: 495228 kB MemFree: 12468 kB Buffers: 22328 kB Cached: 301152 kB SwapCached: 0 kB Active: 272448 kB Inactive: 182272 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 495228 kB LowFree: 12468 kB SwapTotal: 1572856 kB SwapFree: 1572856 kB Dirty: 21356 kB Writeback: 0 kB AnonPages: 131252 kB Mapped: 36676 kB Slab: 20784 kB PageTables: 3312 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 1820468 kB Committed_AS: 394416 kB VmallocTotal: 524280 kB VmallocUsed: 3080 kB VmallocChunk: 521072 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 Hugepagesize: 4096 kB