Even when a program contains only a single thread running on a single processor, a synchronized method call is still slower than an unsynchronized method call.
即使一个程序只包括一个在单一处理器上运行的单线程,一个同步的方法调用仍要比非同步的方法调用慢。
If another virtual processor needs that lock and has excess cycles, it confers those to the first processor through this call.
如果另一个虚拟处理器需要这个锁,并且拥有多余的周期,那么它通过这个调用将剩余周期交换给第一个处理器。
ADMIN_CMD Procedure Executes DB2 command line processor (CLP) administrative commands using the SQL CALL statement.
ADMIN_CMD过程使用SQL call语句执行db2命令行处理器(CLP)管理命令。
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