Analyze lock events mem Profile memory accesses record Run a command and record its profile into perf.data report Read perf.data (created by perf record) and display the profile sched Tool to trace/measure scheduler properties (latencies) script Read perf.data (created by perf record) and ...
类图将帮助我们说明模块之间的联系: 依赖TimeModifier+setBIOSClock()+getCurrentTime()PerformanceAnalyzer+analyzePerformance() 模块依赖表格如下: 部署方案 接下来的部署方案涉及具体的实施步骤和脚本的部署。旅行图将辅助理解用户在部署过程中的路径: 用户系统 准备阶段 用户配置环境 实施阶段 部署配置文件 验证部署结果...
MariaDB - One of the most popular database servers. Made by the original developers of MySQL. MongoDB - MongoDB is a free and open-source cross-platform document-oriented database program, uses JSON-like documents with schemas. MyCLI - MyCLI is a command line interface for MySQL, MariaDB...
Grayloghelps you to easily collect data from multiple devices including network switches, routers, and wireless access points. It integrates with theElasticsearchanalytics engine and leveragesMongoDBto store data and the logs collected offer deep insights and are helpful in troubleshooting system faults a...
开始恢复被删掉的文件:ext3grep /dev/sda3 –restore-file ora10g/oradata/roger/roger01.dbf 注意这里的格式,后面的路径不能加/home。跟前面的Inode 1783429 is directory “ora10g/oradata/roger”. 保持一致。 或者 ext3grep /dev/sda3 –restore-inode 1784045 ...
lock Analyze lock events mem Profile memory accesses record Run a command and record its profile into perf.data report Read perf.data (created by perf record) and display the profile sched Tool to trace/measure scheduler properties (latencies) ...
It provides thorough time-based analysis for MySQL, MariaDB and MongoDB servers to ensure that your data works as efficiently as possible. Percona MySQL - Percona Server for MySQL is a free, fully compatible, enhanced, open source drop-in replacement for MySQL that provides superior performance...
为了达到这个效果,系统新加了一个khugepaged进程,这个进程会偶尔尝试把正在使用的较小页面换到hugepage中。这样就能使hugepage使用达到最大化。 2.如何关闭THP 尽管THP的本意是为提升性能,但某些数据库厂商还是建议直接关闭THP(比如说Oracle、MongoDB等),否则可能导致性能下降,内存锁,甚至系统重启等问题。
systemd-analyze: Systemd-219 -- 介绍 systemd-ask-password: Systemd-219 -- 介绍 systemd-cat: Systemd-219 -- 介绍 systemd-cgls: Systemd-219 -- 介绍 systemd-cgtop: Systemd-219 -- 介绍 systemd-delta: Systemd-219 -- 介绍 systemd-detect-virt: Systemd-219 -- 介绍 systemd-escape: ...
sudo yum install mongodb-org 基本配置 启动服务: sudo systemctl start mongod sudo systemctl enable mongod 连接MongoDB: mongo 创建管理员用户: use admin db.createUser({ user: "admin", pwd: "password", roles: [ { role: "userAdminAnyDatabase", db: "admin" } ] ...