snappy patches

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Using LEVELDB in Golang

Tags: decide interface Ott for compilation install HTTP Val official func Leveldb is a very powerful KV database, naturally, I also want to be able to use in go. If there is an official go leveldb implementation, then I will give priority. For example, this. However, the library documentation is not available, and no one is found on the Internet for the actual combat environment. I decided not to use it as a question mark on whether it could be used in a production environment or to be on the sa

Use of the android game development framework libgdx (5)-stage and common UI

are not limited by the image. In libgdx, ninepatch is actually nine textureregion objects. There are two common instantiation methods: Public ninepatch (texture, int left, int right, int top, int bottom) Public ninepatch (textureregion region, int left, int right, int top, int bottom) For the value of the four int parameters, refer to the source code: Public ninepatch (textureregion region, int left, int right, int top, int bottom) {int middlewidth = region. getregionwidth ()-left-rig

Independent Component Analysis and demo

white processing Step2: Updating w According to gradient descent method Step3: Projecting W STEP4: Whether satisfies the convergence condition, satisfies then the end, otherwise repeats step2-3; (4) Sample code: Percent cs294a/cs294w independent Component analysis (ICA) Exercise% instructions%------------% This file contains C Ode that helps you get started on the% ICA exercise. In this exercise, you'll need to modify% orthonormalicacost.m and a small part of the this file, ICAEXERCISE.M. %%

Configuring the Maven+eclipse+spark development environment on your Mac

of the project properties.By this basically the configuration has ended, if by execution: MVN clean package, and then through Spark-submit submit run, should not be wrong. However, the local operation, or will be error, the specific errors are as follows: caused By:java.lang.UnsatisfiedLinkError:no Snappyjava in Java.library.pathThis error, through Google and Baidu, find a post to solve this approach: the corresponding URL: http://blog.csdn.net/stark_summer/article/details/47361603In layman's w

A collection of PHP resources compiled by foreign programmers

Dependency ManagementDependency and Package Management Library Composer/packagist: A package and dependency manager Composer Installers: A multi-frame Composer Library Installer Pickle: a php extension installer Other dependency ManagementOther related dependency management Satis: A static composer repository generator Composition: A library that checks the composer environment at run time Version: parsing and comparison library for semantic versions na

Install php5.5.15 using brew in mac

MAC originally comes with php, but many extensions are not installed, so I chose to reinstall php and upgrade it to the latest version. The following describes the installation steps, we hope to help you. Brew is a package management tool under Mac. it manages Mac-compatible compilation configurations and patches through Github, so that you can easily install development tools. Mac comes with ruby, which makes it easy to install. It also automatically

C Language Learning 014: structured data types

Basic use of structs1#include 2 3 //Defining data Structures4 structfish{5 Const Char*name;6 Const Char*species;7 intteeth;8 intAge ;9 };Ten One voidCatalogstructFish f) { Aprintf"%s is a%s with%i teeth. He is%i\n", f.name,f.species,f.teeth,f.age);//access the fields of the structure - } - the intMain () { - //declaring struct variables - structFish snappy={"Snappy","Piranha", the,

Performance Comparison of Different Java compression algorithms and java Performance Comparison

. Compared with deflate, LZ4 compression results are slightly less. If you want to understand how it works, I suggest you read this article. It is released based on a friendly Apache 2.0 license. Snappy-this is a very popular compression algorithm developed by Google. It aims to provide a compression algorithm with relatively better speed and compression ratio. This implementation is used for testing. It is also published according to the Apache 2.0

Using LEVELDB in Golang

This is a creation in Article, where the information may have evolved or changed. Leveldb is a very powerful KV database, naturally, I also want to be able to use in go. If there is an official go leveldb implementation, then I would prefer, such as this, but the library document is not at all, and no one on the internet to use the actual combat environment, whether it can be used in the production environment using the question mark, insurance, I decided not to use. Because LEVELDB has C interf

Using LEVELDB in Golang

This is a creation in Article, where the information may have evolved or changed. Leveldb is a very powerful KV database, naturally, I also want to be able to use in go. If there is an official go leveldb implementation, then I would prefer, such as this, but the library document is not at all, and no one on the internet to use the actual combat environment, whether it can be used in the production environment using the question mark, insurance, I decided not to use. Because LEVELDB has C inte

Use brew to install php5.5.15 and brewphp5.5.15 in mac

Use brew to install php5.5.15 and brewphp5.5.15 in mac Brew is a package management tool under Mac. It manages Mac-compatible compilation configurations and patches through Github, allowing you to easily install development tools. Mac comes with ruby, which makes it easy to install. It also automatically installs git for you. Http://brew.shInstallation Method: ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)" Use the followin

"Turn" the PHP resources compiled by foreign programmers

Ziadoz a list of PHP resources that are maintained on GitHub, including libraries, frameworks, templates, security, code Analysis, logs, third-party libraries, configuration tools, Web tools, books, ebooks, classic blogs, and more. Bó Lè has translated the list of resources online, with the following translations: Dependency ManagementDependency and Package Management Library Composer/packagist: A package and dependency manager Composer Installers: A multi-frame Composer Libra

kylin-Practice OLAP

dimension combinations. The number of cuboid between the dimensions of different groupings will be greatly reduced, the dimension combination from 2 (k+m+n) power can be reduced to 2 of the K Power plus 2 m power plus 2 n power. The group's optimization measures are closely dependent on query SQL, which can be said to be a custom optimization for queries. If the dimension of the query is a kua group, then Kylin needs to aggregate the desired query results from the n-cuboid at a significant cost

Use Brew to install php5.5.15_php instances in a Mac environment

Brew is the package management tool under Mac, and it's easy to install development tools by using Github to host your Mac-friendly compilation configuration and patches. Mac comes with Ruby so it's easy to install, and it automatically installs git as well. Official website: http://brew.sh Installation method: Ruby-e "$ (curl-fssl https://raw.github.com/Homebrew/homebrew/go/install)" Use the following methods to see if the brew was successfully in

Opensuse kernel compilation tutorial (kernel 2.6.x)

Tags: des HTTP Io ar use the for SP strong File The http://cn.opensuse.org/OpenSUSE_%E5%86%85%E6%A0%B8%E7%BC%96%E8%AF%91%E6%95%99%E7%A8%8B_ (kernel_2.6.x)Contents [hide] 1 Statement 2. Overview 3 Basic Knowledge 3.1 What is the kernel? 3.2 What is a patch 3.3 why re-compile the kernel? 3.4 If the upgrade fails, how can I restore the official kernel? 4. Compilation steps 4.1 requirements 4.2 download kernel source code and patc

Find (2) for Linux commands)

Find (2) for Linux commands) The previous article has introduced the test of expressions, which is the core of the find command. Now we will introduce the options and actions of expressions.(1) options -D,-depth: the two serve the same purpose. man's manual and many blogs say that their role is to first find the current directory file and then find it in its subdirectory. However, I tried it many times and found that it was ineffective... Please advise me ~ -Maxdepth: specifies the maximum direc

Linux command Find (ii)

The previous article has introduced expressions's test, which is the most important thing in the Find command, and now introduces the options and actions of expressions.(i) Options -d,-depth: The two roles are the same, and the man manual and many blogs say their role is to find the current directory file first, and then find it in its subdirectories. But I have experimented with it many times and found no effect ... Please the Expert -maxdepth: Specifies the maximum directory depth

Leveldb performance analysis and performance

18 0 1273m 1.1g 2012 R 85.3 1.2 1152:34 db_bench Iostat says: $iostat -dx 5...sdb1 0.40 0.00 3.40 0.00 30.40 0.00 8.94 0.02 4.65 4.65 1.58fioa 0.00 0.00 2074.80 3.80 16598.40 30.40 8.00 0.00 0.13 0.00 0.00dm-0 0.00 0.00 1600.00 0.00 16630.40 0.00 10.39 0.25 0.15 0.15 24.76... During this test, note that snappy compression is not e

Seven compression for hive Architecture Optimization

Common compression methods include:Compressing intermediate results and output results. Compression comparison: Algorithm Before/after compression Compression speed Decompression speed Gzip 13.4% 21 MB/S 118 MB/S Lzo 20.5% 135 MB/S 410 MB/S Snappy 22.2% 172 MB/S 409 MB/S Snappy introduction:

Hadoop2.7.5 Pseudo distributed source code compilation and use

Environment Preparation: JDK1.8 Hadoop2.7.5 (Hadoop cluster is pseudo distributed) maven 3.5.2 Protocolbuffer 2.5.0 snappy1.1.1Note: If your Hadoop compiles successfully, you can support zlib, snappy, lz4, bzip2, OPENSSL5 local compression 1. Compiling steps:Download source code installation dependent software or library compilation package 2. Installation softwareInstall jdk1.7+ and configure environment variables, in the previous blog, you can

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