Kbase 13007: 6.3 and greater and SHMMAX size
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
22/02/2000 |
|
6.3 and greater and SHMMAX size
With 6.3 and above releases of Progress you need to set the SHMMAX as
follows:
For IBM: this is a non-tunable parameter
For Sequent: set SHMMAX to 134217728 bytes
For SCO UNIX: set SHMMAX to 4194304 bytes or less
For most other UNIX platforms: set SHMMAX to 16777216 bytes
This parameter limits the size of a single shared memory segment.
If you set this value too low, PROGRESS will create many
small segments, possibly overflowing the limits SHMMNI,
SHMSEG, or SHMALL.
The units that you use to specify a value for SHMMAX vary
from system to system. Some units use bytes, others use
"clicks" (page size). Consult your system manuals for the
proper units.
Note that the amount of kernel memory required for shared memory
descriptions (not the shared memory itself), is relatively small,
so setting SHMSEG, SHMMNI, SHMALL higher than your current needs
won't affect performance.
Progress Software Technical Support Note # 13007