Kbase P4027: How to tune semaphore and/or shared-memory kernel settings on Solaris 9 and earlier ?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
10/15/2008 |
|
Status: Verified
GOAL:
How to find and change Solaris 9 kernel parameters ?
GOAL:
How to tune semaphore kernel settings on Solaris 9 ?
GOAL:
How to tune shared memory kernel settings on Solaris 9 ?
GOAL:
How to tune semaphore kernel settings on Solaris 9 ?
FACT(s) (Environment):
Solaris SPARC 2.6 32-bit
Solaris SPARC 7
Solaris SPARC 8
Solaris SPARC 9
FIX:
In order to modify semaphore and/or shared-memory kernel settings on Solaris, please edit /etc/system file.
WARNING: Since changing these values involves modifying an important system file, the recommendation should be directed at System Administrators instead of the end-users, because if a modification is incorrect, this could cause the system to be unbootable.
Before changing these values, first make a backup copy of the /etc/system file. After your modifications are complete, the reboot of the box is needed in order to populate new kernel settings.
Example of settings in /etc/system file:
set semsys:seminfo_semmap=100
set semsys:seminfo_semmni=300
set semsys:seminfo_semmns=10000
set semsys:seminfo_semmnu=5000
set semsys:seminfo_semmsl=500
set shmsys:shminfo_shmmax=98304000
set shmsys:shminfo_shmmni=1200
set shmsys:shminfo_shmseg=80
set shmsys:shminfo_shmmin=1