group sls by
The kexec-based Crash Dumping Solution (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/admin-guide/kdump/kdump.html 这份文档包括概述、设置、安装和分析信息。 概述 Kdump 使用 kexec 快速引导到一个转储捕获内核,每当需要对系统内核的内存进行转储(例如系统发生崩溃) ......
Assembler Annotations (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/core-api/asm-annotations.html 汇编注释 版权所有(c)2017-2019 Jiri Slaby 本文档描述了汇编中用于注释数据和代码的新宏。特别是,它包含了关于SYM_FUNC_STAR ......
Shrinker Debugfs Interface (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/admin-guide/mm/shrinker_debugfs.html Shrinker Debugfs Interface 收缩器 debugfs 接口提供了对内核内存收缩子系统的可见性,并允许获取有关单个收缩器 ......
Page Tables (页表) (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/mm/page_tables.html 分页虚拟内存是在1962年与虚拟内存概念一起在Ferranti Atlas计算机上发明的,这是第一台具有分页虚拟内存的计算机。随着时间的推移,这一特性迁移到了更新的计算机上,并 ......
Symbol Namespaces (符号命名空间)(翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/core-api/symbol-namespaces.html 以下文件描述了如何使用符号命名空间来构造通过EXPORT_SYMBOL()宏系列导出的内核符号的导出表面。 1. 介绍 符号命名空间被引入作为结构化内核 ......
How to get printk format specifiers right (如何正确使用printk格式说明符)(翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/core-api/printk-formats.html#printk-specifiers 如何正确使用printk格式说明符 整数类型 如果变量是Type类型, 则使用printk格式说明符: signed ch ......
Printk Index (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/core-api/printk-index.html Printk索引 有许多方法可以监视系统的状态。一个重要的信息来源是系统日志。它提供了大量信息,包括更或不那么重要的警告和错误消息。 有一些监控工具可以根据记录的 ......
Control Group v2 —— Namespace(翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html#namespace Namespace 命名空间 Basics 基础知识 cgroup namespace provides a mechanism to vir ......
Control Group v2 —— Controller(翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html#controllers Controllers CPU The "cpu" controllers regulates distribution of CPU c ......
CMC-ORACLE-函數row_number() over(partition by )函数用法
row_number() over(partition by )函数用法 row_number() over(partition by),作为oracle常用的分析函数,身为数据开发时必须要掌握的。不过一段时间不用,难免会有些忘记,今天整理一下一些场景下的用法。 现有表(test_rownumber ......
Control Group v2 (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html 另外两篇: Control Group v2 —— Controller(翻译 by chatgpt) Control Group v2 —— Namespace ......
influxDb sum求和group by
一、背景 二、实现 select * from ( select sum(value) as val from history_data where parameter_id = '512432211656617105' or parameter_id = '512432211656637048' ......
《REBEL Relation Extraction By End-to-end Language generation》阅读笔记
论文来源 代码地址 相关视频(YouTube) 相关概念: 1.What is natural language understanding (NLU)? Natural language understanding (NLU) is a branch of artificial intellige ......
Unevictable LRU Infrastructure (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/mm/unevictable-lru.html Introduction This document describes the Linux memory manager's "Unevictable LRU" in ......
Physical Memory (翻译 by chatgpt)
原文: https://www.kernel.org/doc/html/latest/mm/physical_memory.html Linux is available for a wide range of architectures so there is a need for an arch ......
What is NUMA? (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/mm/numa.html This question can be answered from a couple of perspectives: the hardware view and the Linux so ......
内存管理相关概念 (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/admin-guide/mm/concepts.html The memory management in Linux is a complex system that evolved over the years ......
Workqueue (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/core-api/workqueue.html Introduction There are many cases where an asynchronous process execution context is ......
乘风破浪,遇见生成式人工智能(Generative AI)洪流之初学者入门课程,十二章系列By微软云技术布道师团队
课程资源 https://github.com/microsoft/generative-ai-for-beginners 课程学习环境设置 Fork课程仓库到自己的账号 https://github.com/microsoft/generative-ai-for-beginners/fork 点击 ......
[LeetCode] 1160. Find Words That Can Be Formed by Characters
You are given an array of strings words and a string chars. A string is good if it can be formed by characters from chars (each character can only be ......
Linux Magic System Request Key Hacks (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html What is the magic SysRq key? 什么是魔术SysRq键? It is a 'magical' key combo you can hit whi ......
Transparent Hugepage Support (翻译 by chatgpt)
原文:https://www.kernel.org/doc/html/latest/admin-guide/mm/transhuge.html Objective 目标 Performance critical computing applications dealing with large me ......
android开发aar包或者jar包出现类重复问题Caused by: java.lang.RuntimeException: Duplicate class found in modules xxx.aar and xxx.aar终极解决方法
如果是仓库依赖的方式直接使用exclude语句移除相同的依赖库即可,如下: implementation("org.java-websocket:Java-WebSocket:1.5.2") { exclude group: 'org.slf4j', module: 'slf4j-api' //ex ......
HugeTLB Pages (翻译by chatgpt)
原文:https://www.kernel.org/doc/html/latest/admin-guide/mm/hugetlbpage.html 内核中内存管理文档汇总:Memory Management Overview The intent of this file is to give a ......
LINQ: group n by 和 group n by into g的区别
见stackflow上的答案: https://stackoverflow.com/questions/57406327/what-is-the-difference-between-group-n-by-vs-group-n-by-into-g-in-linq ......
常用【描述性统计指标】含义(by python)
统计学有时候会被误解,好像必须有大量的样本数据,才能使统计结果有意义。这会让我们觉得统计学离我们的日常生活很遥远。 其实,如果数据的准确度高的话,少量的样本数据同样能反映出真实的情况。比如,很多国家选举时不断做的民意调查,一般做到有效样本1600多份就够了,不管你是几千万人的小国家,还是数亿人的大国 ......
SQL HAVING 子句详解:在 GROUP BY 中更灵活的条件筛选
SQL HAVING子句 HAVING子句被添加到SQL中,因为WHERE关键字不能与聚合函数一起使用。 HAVING语法 SELECT column_name(s) FROM table_name WHERE condition GROUP BY column_name(s) HAVING con ......
记录一次MySQL多表查询,order by不走索引的情况.
首先是表结构,部分字段脱敏已删除 CREATE TABLE `log_device_heart` ( `id` int unsigned NOT NULL AUTO_INCREMENT, `device_number` varchar(255) CHARACTER SET utf8mb4 COLLA ......
Mysql - Error 1055: Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'user.nickname' which is not functionally dependent on columns in GROUP BY clause
编写SQL时需要如下错误,即出现错误 ERROR 1055,SELECT列表不在GROUP BY语句内且存在不函数依赖GROUP BY语句的非聚合字段'edusassvc.u.nickname',这是和sql_mode=only_full_group_by不兼容的(即不支持)。 分析问题 1)原理层 ......
mysql 报错which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'd.Id' which is not functionally dependent on columns in GROU ......