#pinned

ORA-06570: shared pool object does not exist, cannot be pinned/purged

文档解释ORA-06570:sharedpoolobjectdoesnotexist,cannotbepinned/purgedCause:Thespecifiedsharedpoolsharedcursorcouldnotbefound,thereforeitcannotbepinned/purged.Action:...

ORA-01551: extended rollback segment, pinned blocks released

文档解释ORA-01551:extendedrollbacksegment,pinnedblocksreleasedCause:Doingrecursiveextentofrollbacksegment,trappedinternallybythesystemAction:NoneORA-01551错误代表数据库的滚动...

6.1 CUDA: pinned memory固定存储

在CUDA编程中,内存拷贝是非常费时的一个动作.从上图我们可以看出:1.CPU和GPU之间的总线bus是PCIe,是双向传输的.2.CPU和GPU之间的数据拷贝使用DMA机制来实现,非常容易理解,为了更快的传输速度.  我们都知道,虽然在运行速度上硬盘不如内存,但在容量上内存是无法与硬盘相提并论的。...