| CPU |
Central processing |
Runs all session threads and some system threads. Runs
thread for kernel asynchronous I/O (KAIO) where available. Can run a single
poll thread, depending on configuration. |
| PIO |
Disk I/O |
Writes to the physical-log file (internal class) if it
is in cooked disk space. |
| LIO |
Disk I/O |
Writes to the logical-log files (internal class) if they
are in cooked disk space. |
| AIO |
Disk I/O |
Performs nonlogging disk I/O. If KAIO is used, AIO virtual
processors perform I/O to cooked disk spaces. |
| SHM |
Network |
Performs shared memory communication. |
| TLI |
Network |
Uses the Transport Layer Interface (TLI) to perform network
communication. |
| SOC |
Network |
Uses sockets to perform network communication. |
OPT
(UNIX) |
Optical |
Performs I/O to optical disk. |
| ADM |
Administrative |
Performs administrative functions. |
| ADT |
Auditing |
Performs auditing functions. |
| MSC |
Miscellaneous |
Services requests for system calls that require a very
large stack. |
| CSM |
Communications
Support Module |
Performs communications support service operations. |
| Encrypt |
Encryption |
Used by the database server when encryption or decryption
functions are called. |
| classname |
User defined |
Runs user-defined routines in a thread-safe manner so that if the
routine fails, the database server is unaffected. Specified with the VPCLASS
configuration parameter. You must specify classname. |
| Java VP (JVP) |
Java UDR |
Executes Java UDRs. Contains the Java Virtual Machine
(JVM). |
