DeviceMemoryReusePlan 结构体类 AippChannelSwapPara AippCropPara AippCscPara AippDtcPara AippInputShape AippPaddingPara AippResizePara BuildOptions DynamicShapeConfig NativeHandle 模型管家V2接口 Overview 模型编译类 Build CreateModelBuilder 已编译模型类 CreateBuiltModel CheckCompatibi...
Total large memory allocated 0 Total large memory allocated表示Buffer Pool向操作系统申请的连续内存空间大小,包括全部控制块、缓存页、以及碎片的字节大小 Dictionary memory allocated 1290731 Dictionary memory allocated表示数据字典信息分配的内存空间的字节大小,注意这个内存空间和Buffer Pool没啥关系,不包括在Total me...
DeviceMemoryReusePlan 结构体类 AippChannelSwapPara AippCropPara AippCscPara AippDtcPara AippInputShape AippPaddingPara AippResizePara BuildOptions DynamicShapeConfig NativeHandle 模型管家V2接口 Overview 模型编译类 Build CreateModelBuilder 已编译模型类 CreateBuiltModel CheckCompatibi...
MAX_OS_MEMORY 95 100 DM 数据库占用的内存占操作系统物理内存和虚拟内存之和百分比,需要设置为 100 BUFFER 100 *** 用于缓存数据页,一般配置为操作系统物理内存的 60%~80% MAX_BUFFER 100 *** 用于控制系统缓冲区的上限,一般配置为和 BUFFER 参数相等 BUFFER_POOLS 1 61 BUFFER 的分区数,一般配置为质数,取...
如下是tcp_sendmsg流程,sk_stream_wait_memory就是tcp_wmem不够的时候触发等待: 如果sendbuffer不够就会卡在上图中的第一步 sk_stream_wait_memory, 通过systemtap脚本可以验证: #!/usr/bin/stap # Simple probe to detect when a process is waiting for more socket send ...
(MMON) : (timeout action) : acnum=[42] comment=[reconfiguration MMON action] (MMON) : (timeout action) : acnum=[63] comment=[SGA memory tuning parameter update] (MMON) : (timeout action) : acnum=[69] comment=[SGA memory tuning]。。。大概...
本案例来自某客户两节点rac的一次生产故障,现象是大面积的gc buffer busy acquire导致业务瘫痪。 首先查看1节点AWR头部信息和load profile: 1节点AWR 得到的关键信息点: 对于LCPU 256的系统,AAS=13379.42/59.91=223,说明系统非常繁忙或者遇到了异常等待。
Swap spaceis an allocated area on the hard disk that acts as virtual memory when physical RAM is exhausted. While it prevents system crashes due to low memory, it can slow down the system if overused. Clearing Cache, Buffer, and Swap Space in Linux ...
However, when writing the wrapped fragment of the log buffer to disk, extra IO operation could happen (because we need to copy two disjoint areas of memory). First of all, it's a rare case so it shouldn't matter at all. Also note that the wrapped fragment results only in additional ...
BUF_BLOCK_MEMORY:用于存储内存对象,包括innodb行锁、AHI(自适应哈希)、压缩页伙伴系统等。此类页面不存在任何逻辑链表中。 BUF_BLOCK_REMOVE_HASH:页面从page hash删除后,被放入free_list前处于的临时状态。 1.1.3 页面读取方法 页面读取方法包括:NORMAL、SCAN、IF_IN_POOL、PEEK_IF_IN_POOL、NO_LATCH、IF_IN_...