Oracle Shared Memory

Hi

 SHMMAX value on my system is 1GB
 SGA size = 5128924 bytes ( the total value from show sga )  The value show by ipcs –mb is 5140480 bytes

 The tstshm output is :

Number of segments gotten by shmget() = 50 Number of segments attached by shmat() = 50 Segments attach at higher addresses
Shared memory non-attachable at specific addresses!

Default shared memory address = 0xc15e8000
Lowest shared memory address  = 0xc15e8000
Highest shared memory address = 0xc77e8000
Total shared memory range     = 104857600
Total shared memory attached  = 104857600
Largest single segment size   =  2097152
Segment boundaries (SHMLBA)   =     4096 (0x1000)

 Can someone explain this BIZZARE variations in Oracle shared memory sizes.

 Thanks.

Received on Tue May 05 1998 - 22:44:40 CDT