Change the Forwarding: RMT Architecture Note on "Forwarding Metamorphosis: Fast Programmable Match-Action Processing in Hardware for SDN", SIGCOMM 2013, Hong Kong, China. 前言 回顾SDN至今十年的发展,涌现了许多非常优秀的技术和应用,当下数据平面可编程是炙手可热的研究热点,代表性的就算Stanford Univers…

Imagine that you are looking at the blueprints of a building. This document, prepared by an architect, tells you the plans for the building. What do these plans tell you? If the plans you are looking at are for a single family residence, then you’ll…

http://en.wikipedia.org/wiki/ARM_architecture ARM architecture     ARM architectures The ARM logo Designer ARM Holdings Bits 32-bit or 64-bit Introduced 1985 Design RISC Type Register-Register Branching Condition code Open Proprietary 64/32-bit archi…

报错内容显示如下: ld: warning: ignoring file /Users/rowling/Library/Developer/Xcode/DerivedData/zhinengbangongpingtai-gylhkhpyjmmjkagiimejuaduiboa/Build/Products/Debug-iphonesimulator/libsqlcipher.a, file was built for archive which is not the architecture b…

Everything Is an Object You manipulate objects with references Each programming language has its own means of manipulating elements in memory. Are you manipulating the element directly, or are you dealing with some kind of indirect representation (a…

Using the latest advancements in AI to predict stock market movements 2019-01-13 21:31:18 This blog is copied from: https://github.com/borisbanushev/stockpredictionai In this notebook I will create a complete process for predicting stock price moveme…

Written by Bernd Rücker on Dec 12 2018 in the Best Practices category. Editor’s Note: This post originally appeared on Bernd Rücker’s blog and was cross-posted here with Bernd’s permission. Thanks Bernd! Your company might want to go for a microservi…

/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you…

Introduction If you do any sort of C++ development on Windows, then you know that library/package management can be quite a pain at times (ever built OpenCV from source? How about boost?). There has never really been a good package manager on windows…

http://pauladamsmith.com/articles/redis-under-the-hood.html#redis-under-the-hood How does the Redis server work? I was curious to learn more about Redis’s internals, so I’ve been familiarizing myself with the source, largely by reading and jumping ar…

Transparent Flow Migration for NFV 摘要 因为SDN提供的灵活性,NF之间存在着流量的迁入和迁出问题.而且NF也要根据相关的状态信息处理数据包,所以流量迁移必须满足以下两点要求: 保持数据包和状态的迁移顺序,必须获取状态才能处理数据包. 想都不用想,这点一定是低开销.低时延- 目前现有的流量迁移架构,把流量迁移和状态迁移耦合在一起,这种架构不能实现安全.高效.低开销的迁移. 于是本篇论文提出了一个流量迁移架构,叫TFM(Transparent Flow Migr…

都是从<Thinking in Java>英文第四版中摘抄的 _______________________________________________________________________________________________________________________ 变量初始化: The default values are only what Java guarantees when the variable is used as a member of a…

Linux 的源码安装工具 CheckInstall Checkinstall 是一个能从 tar.gz 类的 https://www.ibm.com/developerworks/cn/linux/l-cn-checkinstall/ Linux 的源码安装工具 CheckInstall Checkinstall 是一个能从 tar.gz 类的源代码自动生成 RPM/Debian 或Slackware 安装包的程序.通过 CheckInstall,你就能用几乎所有的 tar.gz 类的源代码来…

ARM ARM架构,过去称作高级精简指令集机器(Advanced RISC Machine,更早称作:Acorn RISC Machine),是一个32位精简指令集reduced instruction set computing(RISC)处理器架构,其广泛地使用在许多嵌入式系统设计.由于节能的特点,ARM处理器非常适用于移动通信领域,符合其主要设计目标为低成本.高性能.低耗电的特性. ARM is a family of instruction set architectures for c…

参考:https://github.com/tflearn/tflearn/issues/964 解决方法: """ Tensorflow graph freezer Converts Tensorflow trained models in .pb Code adapted from: https://gist.github.com/morgangiraud/249505f540a5e53a48b0c1a869d370bf#file-medium-tffreeze-1-py…

Entity Framework Core performance tuning – a worked example Last Updated: February 25, 2019 | Created: September 22, 2017 This is the first in a series of articles on performance tuning EF Core. In this article I take an example book selling site tha…

1 修改dnsmasq配置文件/etc/dnsmasq.conf 在/etc/dnsmasq.conf文件底部增加 #++++++++++++++++++++++++++++++++++++++++ # Change this line if you want dns to get its upstream servers from somewhere other that /etc/resolv.conf #如果你想让dns从某个地方(而不是/etc/resolv.conf)获得上游服务 re…

目录 直接修饰用 间接强调用 (多为副词) 过渡用 特别的名词 动词 词组 各种介词 句子 摘要 引言 总结 正文 实验 直接修饰用 Word 含义 例句 近义词 nuanced adj. 微妙的:具有细微差别的; v. 精确细腻地表演:细致入微地描绘 However, a more nuanced understanding of images arguably requires the ability to reason about how the scene depicted in the…

The package does not support the device architecture (x86). You can change the supported architectures in the Android Build section of the Project Options. 包不支持设备架构(x86).你可以改变支持架构在Android构建部分的项目选项. 解决方法: 属性里面勾上X86…

HDFS Architecture HDFS Architecture(HDFS 架构) Introduction(简介) Assumptions and Goals(假设和目标) Hardware Failure(硬件失效是常态) Streaming Data Access(支持流式访问) Large Data Sets(大数据集) Simple Coherency Model(简单一致性模型) "Moving Computation is Cheaper than Moving Data&q…

http://anandtech.com/show/2549 Now that NVIDIA’s has announced its newest GPU architecture (the GeForce GTX 200 series), interesting architectural details are popping up on the web. The best writeup I’ve found is by AnandTech. In the past, such detai…

面对越来越复杂的 App 需求,Google 官方发布了Android 框架组件库(Android Architecture Components ).为开发者更好的开发 App 提供了非常好的样本.这个框架里的组件是配合 Android 组件生命周期的,所以它能够很好的规避组件生命周期管理的问题.今天我们就来看看这个库的使用. 通用的框架准则 官方建议在架构 App 的时候遵循以下两个准则: 关注分离 其中早期开发 App 最常见的做法是在 Activity 或者 Fragment 中写了大量…

HDFS Architecture HDFS Architecture(HDFS 架构) Introduction(简介) Assumptions and Goals(假设和目标) Hardware Failure(硬件失效是常态) Streaming Data Access(支持流式访问) Large Data Sets(大数据集) Simple Coherency Model(简单一致性模型) “Moving Computation is Cheaper than Moving Data”(…

Open source software has become a fundamental building block for some of the biggest websites. And as those websites have grown, best practices and guiding principles around their architectures have emerged. This chapter seeks to cover some of the ke…

转自:http://aosabook.org/en/distsys.html Scalable Web Architecture and Distributed Systems Kate Matsudaira Open source software has become a fundamental building block for someof the biggest websites. And as those websites have grown,best practices and…

In one embodiment, a network architecture comprises minimalistic connected objects (MCOs), distributed intelligence agents (DIAs), and central intelligence controllers (CICs). MCOs have limited intelligence sufficient to perform their respective desi…

A method, apparatus, and computer usable program code for logical partitioning and virtualization in heterogeneous computer architecture. In one illustrative embodiment, a portion of a first set of processors of a first type is allocated to a partiti…

Introduction Motivation Most Linux and Unix-based systems rely on the X Window System (or simply X) as the low-level protocol for building bitmap graphics interfaces. On these systems, the X stack has grown to encompass functionality arguably belongi…

To get an idea of what all of this stuff “does,” let me start off with an update on the average day at Stack Overflow. So you can compare to theprevious numbers from November 2013, here’s a day of statistics from February 9th, 2016 with differences s…

How Will Java Technology Change My Life? We can't promise you fame, fortune, or even a job if you learn the Java programming language. Still, it is likely to make your programs better and requires less effort than other languages. We believe that Jav…