如果进行update过,该tid是第一个打上delete标签的记录,而这个记录的t_ctid会指向新insert的记录。 2)第一次进来,at_chain_start标记为TRUE即HOT链的起始记录 3)根据tid解析出的页号和索引号得到记录的索引 4)第一次进来,并且记录被修剪了,即老记录的索引号指向了最新记录的索引号,此时获取最新记录的索引号,返...
#!/bin/bashBACKUP_DIR="/path/to/backup"DB_NAME="your_database"DATE=$(date+%F)mysqldump-uroot -p${MYSQL_ROOT_PASSWORD}${DB_NAME}>${BACKUP_DIR}/${DB_NAME}_${DATE}.sql 1. 2. 3. 4. 5. 6. 并用mermaid 生成备份流程图: 开始备份检查数据库状态执行mysqldump保存到指定目录备份完成 恢复...
checkHeapStart checkHeapStop clearHeapContext context count countObjects createAContainer csCallCnt csSweepCnt dataByContext dumpCursors dumpDGMLGraph dumpObjects filename firstUnfreedCursor firstUnfreedObject fixedBlockSize floor freeRefCnt getRuntimeBugcheckFlags getUnfreedCursor getUnfreedObject handle include...
#右键txt文件-->Thread Detail 这里基本就显示了各个线程状态分析情况。一般重点查看“等待资源Waiting on condition”、“wait()”、“阻塞Blocked”。这些是引起CPU高,可能是线程执行有死循环。 New:当线程对象创建时存在的状态,此时线程不可能执行; Runnable:当调用thread.start()后,线程变成为Runnable状态。只要得到...
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Date startDate = sdf.parse(startTime); Date endDate = sdf.parse(endTime); //借助calendar,从开始日期,每次加1,进行补 Calendar c = Calendar.getInstance(); c.setTime(startDate); ...
setprop libc.debug.malloc 1 setprop libc.debug.malloc.options backtrace stop;start [执行你的应用] 可参考文章Android Libc Debug 加载动态库 /data/local/tmp/heapsnap -p <pid> -l /data/local/tmp/libheapsnap.so 通过signal 21获取目标进程的heap信息,并自动保存在/data/local/tmp/heap_snap目录下...
console.log("调用push方法往数组中添加100000个元素耗时"+(endTime-startTime)+"毫秒"); startTime = +new Date(); arr = [ ]; // unshift性能测试 for (var i = 0; i < 100000; i++) { arr.unshift(i); } endTime = +new Date(); ...
Heap globalCartel-1 already at its maximum size of 312160. Cannot expand. Could not start VMX: msg.vmk.status.VMK_NO_MEMORY Note: For additional symptoms and log entries, see the Additional Information section. Cause This issue occurs with ESXi hosts running on HP hardware with these versio...
可以通过startup.conf文件中进行指定。合入记录如下。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 commit 1965f750bf5f399a11c75d7ba14a52a504c69227 Author: Damjan Marion <damarion@cisco.com> Date: Fri Sep 11 22:18:35 2020 +0200 vpp: make main heap page size configurable from startup....
UI_ANIMATION_KEYFRAME_STORYBOARD_START structure (Windows) _IMSVidCtlEvents::MouseMove method (Windows) RemoveStrokes function (Windows) MouseProc callback function (Windows) CUIAutomation object (Windows) _AM_ASFWRITERCONFIG_PARAM enumeration (Windows) Graph Element (Child of ToMainTransition) Games...