默认场景下,当OB在转储/合并发生冻结的瞬间,这些空洞的range打标会失效,必须依赖下一次"成功的慢查询(全表扫描)"才能够将标记再次打上去。所以多数情况下,如果用户对buffer表的sql的执行计划创建合适的索引并且进行了执行计划绑定,后面即使不做其他干预,经历一次超长耗时的请求,后面即可恢复正常。 但是这些方法均为应急...
Specifies the target to which the buffer object is bound for glMapBufferRange, which must be one of the buffer binding targets in the following table: 翻译:为glMapBufferRange指定缓冲区对象绑定的目标,它必须是下表中的一个缓冲区绑定目标: offset Specifies the starting...
Procedure used to reserve the range of lsn values: Acquiring shared access to the redo log (through sharded rw_lock) Increase the global number of reserved data bytes (log.sn) by number of data bytes we need to write. This is performed by an atomic fetch_add operation: ...
A lower ratio in the range of 1:4 to 1:8 might be optimal. For information about setting the max server memory option, see Server memory configuration options. Test the buffer pool extension thoroughly before implementing in a production environment. Once in production, avoid making configuration...
page hash对应的结构体为hash_table_t。page hash中只存储对应到物理文件的页面(buf_page_in_file() == TRUE),类型包括BUF_BLOCK_ZIP_PAGE、BUF_BLOCK_ZIP_DIRTY、BUF_BLOCK_FILE_PAGE三类。page hash的key为(m_space << 20) + m_space + m_page_no,value为页面描述符buf_page_t*。page hash为了...
NDIS 调用FilterReceiveNetBufferLists函数来请求筛选器驱动程序来处理接收指示。 注释必须使用FILTER_RECEIVE_NET_BUFFER_LISTS类型声明函数。 有关详细信息,请参阅以下示例部分。 语法 C++复制 FILTER_RECEIVE_NET_BUFFER_LISTS FilterReceiveNetBufferLists;voidFilterReceiveNetBufferLists( [in] NDIS_HANDLE Fi...
ITextRange ActivityCollection.System.Collections.Generic.ICollection<System.Workflow.ComponentModel.Activity>.CopyTo Method (System.Workflow.ComponentModel) Up-Down Control IShellRunDll MSMQQueueInfo.PrivLevel Opening Queues DoPrivacyDlg Function () Cursor Behavior When Messages are Not Available IThumbnailCach...
DRIVER_OVERRAN_STACK_BUFFER 错误检查的值为 0x000000F7。 这表示驱动程序已溢出基于堆栈的缓冲区。 重要 这篇文章适合程序员阅读。 如果你是在使用计算机时收到蓝屏错误代码的客户,请参阅蓝屏错误疑难解答。 DRIVER_OVERRAN_STACK_BUFFER 参数 参数说明
For systems with buffer pools in the multi-gigabyte range, dividing the buffer pool into separate instances can improve concurrency, by reducing contention as different threads read and write to cached pages. This feature is typically intended for systems with abuffer poolsize in the multi-gigabyte...
DXGK_PAGETABLEUPDATEMODE枚举 DXGK_PATCHFLAGS结构 DXGK_PATH_UPDATE枚举 DXGK_PHYSICAL_MEMORY_CAPS结构 DXGK_PHYSICAL_MEMORY_RANGE结构 DXGK_PHYSICAL_MEMORY_TYPE枚举 DXGK_PHYSICALADAPTERCAPS结构 DXGK_PHYSICALADAPTERFLAGS结构 DXGK_PLANE_SPECIFIC_INPUT_FLAGS结构 DXGK_PLANE_SPECIFIC_OUTPUT_FLAGS结构 DXGK_...