On Wed, 27 Jun 2007 06:54:44 -0700, rogv24 wrote:

> I joined a company and I noticed Oracle 10g installed on linux server
> with 8 GB of ram.
> I can't seem to understand why all the memory is taken. When I run free
> all the memory is used up:
>
> total used free shared buffers
> cached
> Mem: 8164176 8145112 19064 0 70096 7633360
> -/+ buffers/cache: 441656 7722520 Swap: 4194296 467292
> 3727004
>
>
> cat /proc/meminfo shows:
>
>
> MemTotal: 8164176 kB
> MemFree: 20344 kB
> Buffers: 93028 kB
> Cached: 7598528 kB
> SwapCached: 26308 kB
> Active: 1323876 kB
> Inactive: 6633240 kB
> HighTotal: 0 kB
> HighFree: 0 kB
> LowTotal: 8164176 kB
> LowFree: 20344 kB
> SwapTotal: 4194296 kB
> SwapFree: 3726992 kB
> Dirty: 2068 kB
> Writeback: 0 kB
> Mapped: 1297384 kB
> Slab: 110616 kB
> CommitLimit: 8276384 kB
> Committed_AS: 5536800 kB
> PageTables: 47016 kB
> VmallocTotal: 536870911 kB
> VmallocUsed: 265396 kB
> VmallocChunk: 536604667 kB
> HugePages_Total: 0
> HugePages_Free: 0
> Hugepagesize: 2048 kB
>
>
> any advise would be helpful.

It's being used by the cache, that's perfectly normal. Any available
memory is used as a file cache, that makes a huge performance difference
because accesses to the cache are orders of magnitude faster then
accesses to the disk. If the OS needs space for something else it will
push some of the cached objects out and allocate the space to the higher
priority process.

On Jun 27, 10:19 am, General Schvantzkoph
wrote:
> On Wed, 27 Jun 2007 06:54:44 -0700, rogv24 wrote:
> > I joined a company and I noticed Oracle 10g installed on linux server
> > with 8 GB of ram.
> > I can't seem to understand why all the memory is taken. When I run free
> > all the memory is used up:
>
> > total used free shared buffers
> > cached
> > Mem: 8164176 8145112 19064 0 70096 7633360
> > -/+ buffers/cache: 441656 7722520 Swap: 4194296 467292
> > 3727004
>
> > cat /proc/meminfo shows:
>
> > MemTotal: 8164176 kB
> > MemFree: 20344 kB
> > Buffers: 93028 kB
> > Cached: 7598528 kB
> > SwapCached: 26308 kB
> > Active: 1323876 kB
> > Inactive: 6633240 kB
> > HighTotal: 0 kB
> > HighFree: 0 kB
> > LowTotal: 8164176 kB
> > LowFree: 20344 kB
> > SwapTotal: 4194296 kB
> > SwapFree: 3726992 kB
> > Dirty: 2068 kB
> > Writeback: 0 kB
> > Mapped: 1297384 kB
> > Slab: 110616 kB
> > CommitLimit: 8276384 kB
> > Committed_AS: 5536800 kB
> > PageTables: 47016 kB
> > VmallocTotal: 536870911 kB
> > VmallocUsed: 265396 kB
> > VmallocChunk: 536604667 kB
> > HugePages_Total: 0
> > HugePages_Free: 0
> > Hugepagesize: 2048 kB
>
> > any advise would be helpful.
>
> It's being used by the cache, that's perfectly normal. Any available
> memory is used as a file cache, that makes a huge performance difference
> because accesses to the cache are orders of magnitude faster then
> accesses to the disk. If the OS needs space for something else it will
> push some of the cached objects out and allocate the space to the higher
> priority process.- Hide quoted text -
>
> - Show quoted text -

Thanks for the input