[转帖]GCC的优化的情况

25.1 Design Overview Link time optimization is implemented as a GCC front end for a bytecode representation of GIMPLE that is emitted in special secti

[转帖]VMware NVMe支持:vSphere 7.0 U3及未来展望

https://aijishu.com/a/1060000000256123 本文内容参考自《SNIA SDC 2021会议资料& 分享的心路历程》中的一个Slide,《NVMe/TCP in the Enterprise:Next-Gen End-to-End Paradigm for Stora

[转帖]docker run

https://docs.docker.com/engine/reference/commandline/run/#/configure-namespaced-kernel-parameters-sysctls-at-runtime Run a command in a new container

[转帖]linux 统计 TCP 网络连接状态

https://www.cnblogs.com/leffss/p/15471501.html 两种方法: awk 统计 $ ss -a|grep '^tcp'|awk '{ ++State[$2] } END { for (i in State) print i,State[i] }' LISTEN

[转帖]关于TIME_WAIT优化

我们先看一下四次挥手过程 # netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}' # netstat -tan | awk '{print $6}' | sort | uniq -c 通过此图先说明几个概念: TI

[转帖]第53篇-编译线程的初始化

专注虚拟机与编译器研究 https://www.cnblogs.com/mazhimazhi/p/15796256.html 即时编译(Just In Time,JIT)的运行模式有两种:client模式(C1编译器)和server模式(C2编译器)。这两种模式采用的编译器是不一样的,client模

[转帖]little-endian and big-endian

https://www.cnblogs.com/jenneyblog/archive/2010/06/29/1767330.html Some computer architectures number bytes in a binary word from left to right, which

[转帖]BuildKit

https://github.com/moby/buildkit BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner

[转帖][译]ARM大小核架构白皮书

https://zhuanlan.zhihu.com/p/33411449 ARM big.LITTLE Processing with ARM Cortex-A15 & Cortex-A7 --Improving Energy Efficiency in High-Performance Mobi

[转帖]nginx的luajit安装luarocks并安装luafilesystem

nginx的luajit安装luarocks并安装luafilesystem by admin on 2015-07-11 08:05:23 in , 69次 标题有点绕口。我尽量把关键词都贴进去。之前因为自己的nginx安装了ngx_lua模块,但是又需要引入 但是安装luafilesystem又

[转帖]rsar - Extract data from plain-text sar files

sar -A -t -f /tmp/sa11 >/tmp/sar11 https://github.com/ryran/rsar When dealing with sysstat sar data in a sosreport, it's almost always easier to parse

【转帖】SQUID TIME_WAIT值过高引起的服务器被拖慢

https://www.diewufeiyang.com/post/895.html 查看TCP的连接状态值: # netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}' vi /etc/sysctl.conf 添加如

[转帖]goofys

Goofys is a high-performance, POSIX-ish Amazon S3 file system written in Go Overview Goofys allows you to mount an S3 bucket as a filey system. It's a

论文推荐|TDSC2022 安全补丁识别最新的方案E-SPI

摘要:TDSC 2022发表了安全补丁识别最新的方案“Enhancing Security Patch Identification by Capturing Structures in Commits” (E-SPI)。 本文分享自华为云社区《【论文推荐】TDSC2022 安全补丁识别最新的方案E

Python 列表操作指南3

示例,将新列表中的所有值设置为 'hello': newlist = ['hello' for x in fruits] 表达式还可以包含条件,不像筛选器那样,而是作为操纵结果的一种方式: 示例,返回 "orange" 而不是 "banana": newlist = [x if x != "bana

Java 内存管理最佳实践

本文翻译自国外论坛 medium,原文地址:https://medium.com/@fullstacktips/best-practices-for-memory-management-in-java-17084c4a7eec 内存管理是编程的一个基本领域之一,尤其是在 Java 开发中。当不再需要

Java Redis多限流

本文详细介绍了Java Redis多限流的操作方法,并给出了使用Jedis库结合Redis的INCR和EXPIRE命令模拟一个基本的分布式多限流系统、基于Jedis和Lua脚本的限流示例两个代码示例,同时本文还介绍了Redis多限流的一些基本概述,干货满满。

kafka事务流程

流程 kafka事务使用的5个API // 1. 初始化事务 void initTransactions(); // 2. 开启事务 void beginTransaction() throws ProducerFencedException; // 3. 在事务内提交已经消费的偏移量(主要用于消费

浅拷贝、深拷贝与序列化【初级Java必需理解的概念】

浅拷贝 首先创建两个类,方便理解浅拷贝 @Data class Student implements Cloneable{ //年龄和名字是基本属性 private int age; private String name; //书包是引用属性 private Bag bag; public Stu

限速上传文件到腾讯对象存储cos的脚本

官网:https://cloud.tencent.com/document/product/436/12269 安装包,这里用的python2.7 # pip install -U cos-python-sdk-v5 -i https://mirrors.tencent.com/pypi/simpl