You are right that 800 MB does not reflect the instance memory. They represent the instance usage and the connections usage. I meant to say: No, the 800 MB are not used by the kernel but are used for oracle (instance + connections). Adar Yechiel Rechovot, Israel Niall Litchfield wrote: > It is indeed the virtual address spacefor user processes. (and only > 1.2gb of it is left). You should see this change if you reduce the > kernel allocation to 1gb by use of the /3gb switch in boot.ini (or > userva in the new boot configuration for windows7/Server2008). I'm > prtetty certian that this information is returned by the o/s so I > don't believe we can conclude that the instance memory allocation is > 800mb, just that 800mb of user processes are running. > Niall > > On Wed, Mar 10, 2010 at 11:51 AM, Yechiel Adar <adar666@xxxxxxxxxxxx > <mailto:adar666@xxxxxxxxxxxx>> wrote: > > You have 2GB for oracle. The instance use about 0.8 GB now and can > grow to 2 GB > > Dion Cho wrote: >> I believe that VA stands for virtual address. >> >> You are on the 32bit machine where the maximum address space is >> 2G. Some part of the address is reserved for the kernel thus you >> have around 1.2G remained. > >