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Oracle Solaris Tunable Parameters Reference Manual Oracle Solaris 10 1/13 Information Library |
1. Overview of Oracle Solaris System Tuning
2. Oracle Solaris Kernel Tunable Parameters
Where to Find Tunable Parameter Information
General Kernel and Memory Parameters
fsflush and Related Parameters
General File System Parameters
SPARC System Specific Parameters
Solaris Volume Manager Parameters
3. Oracle Solaris ZFS Tunable Parameters
5. Internet Protocol Suite Tunable Parameters
A. Tunable Parameters Change History
System V semaphores provide counting semaphores in the Oracle Solaris OS. A semaphore is a counter used to provide access to a shared data object for multiple processes. In addition to the standard set and release operations for semaphores, System V semaphores can have values that are incremented and decremented as needed (for example, to represent the number of resources available). System V semaphores also provide the ability to do operations on a group of semaphores simultaneously as well as to have the system undo the last operation by a process if the process dies.
For information about the changes to semaphore resources in the Oracle Solaris 10 release, see System V IPC Configuration.
For detailed information about using the new resource controls in the Oracle Solaris 10 release, see Chapter 6, Resource Controls (Overview), in System Administration Guide: Oracle Solaris Containers-Resource Management and Oracle Solaris Zones.
For legacy information about the obsolete System V semaphore parameters, see Parameters That Are Obsolete or Have Been Removed (Oracle Solaris 10).