今天一个哥们问到oracle一些进程名，在回答的时候顺便也事理了一下，原来自己有那么多忘记的。
PMON: The Process Monitor
SMON: The System Monitor
RECO: Distributed Database Recovery
CKPT: Checkpoint Process
DBWn: Database Block Writer
LGWR: Log Writer
ARCn: Archive Process
Lock monitor (LMON) process:
Lock manager daemon (LMD) process:
Lock manager server (LMSn) process:
Lock (LCK0) process:
Diagnosability daemon (DIAG) process:
CJQ0 process is the job queue coordinator.
the memory manager (MMAN) process.
CJQ0 and Jnnn Processes: Job Queues
EMNn: Event Monitor Processes
MMAN: Memory Manager
MMON, MMNL, and Mnnn: Manageability Monitors
CTWR: Change Tracking Processes
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