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We are going to perform a simple test on reading and writing MongoDB, Redis, and Tokyo Tyrant. To perform a fair test, we need to understand the implementation mechanism behind them. Below are some comparisons:Comparison of storage implementation:* Memory File Image (Memory-File Mapping) Redis, MongoDB* File + Cache Tokyo Tyrant* Memory: Redis, Tokyo TyrantKey/Value index format:* B + Tree: MongoDB, Tokyo Tyrant* Hash Table: Redis, Tokyo Tyrant* Fixed Length: Tokyo TyrantFrom the above
During the work period, the problem of exporting and importing data between databases of different versions is often involved. Simply sort it out and compare the performance. You are welcome to discuss and supplement some methods that are missing.
00. Create a test environment
01. use SQL Server Import and Export Tool
02. Use generate scripts
03. Use BCP
04. Use sqlbulkcopy
05. Use the linked server for data migration
06. SQL data compar
calculation comparison, each virtual machine language is not much different, in fact, in addition to the modern many business system bottlenecks in the IO, in the network, in the algorithm, in the design, You run 120 million times in 2 seconds, and no database or cache can do 2 seconds to record 120 million data, are 1 seconds below the 1 million record, if the network speed is slower, the average 1 second
In the project, often encounter on-machine communication between processes, commonly used inter-process communication methods generally have the following1 socket2 Unixsocket3 Shared Memory (share-memory)4 Piping (pipe)5 Message Queuing (message-queue)6 Files (file)7 message bus (e.g. ZEROMQ)8 other middleware (such as Redis, Memchache, database, etc.)If the project is simply a message delivery, the performance
[Switch] Performance Comparison Between SQLite database and other databases
This article Reprinted from: http://www.sqlite.com.cn/MySqlite/6/22.HtmlPerformance Comparison Between SQLite databases and other databases This is an article from a traditional blog: http://blog.joycode.com/fish/archive/2004/08/13/30
technical friends of the discussion, for the comparison of the question here to do a description.We know that Redis is a memory database, and MongoDB is not, so there are friends who question whether the comparison here is just memory versus disk. In fact, this argument is justified, the above test data from the original author's article, and its article does no
improve the database performance by reducing the number of records in the key tables in the database. In fact, in addition to this way of controlling the total amount of data by controlling the number of data records, we can also use smaller data types to allow the database to hold the same amount of data through a sm
First, the purpose of the experimentCompare the performance of shared Ethernet and switched Ethernet over different network sizes.Second, the experimental methodUse Opnet to create and simulate a network topology, and run to analyze its performance.Iii. contents of the experiment3.1 Experiment settings (network topology, parameter settings, data to be observed, etc.)Step 1: Download the It Guru, create a new project, and name it hub_switch_project.Ste
partition_by1 is a 32-length varchar type for retrieval. The remaining two fields are floating-point numbers and are mostly used for sorting;
Autokid is used as the sub-column and serves as the primary key. it is used only for atomicity guarantee during data loading and has no practical significance.
2. purpose:
Compressed space comparison
The larger the compression ratio, the smaller the disk space occupied, directly reducing the data storage co
MYSQL: SQL _CALC_FOUND_ROWS and count (*) performance comparison bitsCN.com
1. create a table:
// Overwrite the index create table if not exists 'Ben' ('A' int (10) unsigned not null AUTO_INCREMENT, 'BB' int (10) unsigned not null, 'CC' varchar (100) not null, primary key ('A'), KEY 'bar' ('BB ', 'A') ENGINE = MyISAM; // no overwriting index drop table if exists 'Ben'; create table if not exists 'Ben' ('A'
Performance Comparison of open-source JSON libraries: JSON. simple/GSON/Jackson/JSONP, jsongsonWhich JSON library in Java has the fastest parsing speed?
JSON has become a widely accepted standard for data transmission between servers and WEB applications. However, as many of the things we have become accustomed to, you will naturally think about it without further thinking. We seldom think about the differe
web| Comparison | upload | performance | upload | performance
Six Web upload components performance test and comparison with the continuous deepening of the network tide, Enterprise Management Network has become a trend, more and more enterprise users to their own mis, OA a
Tags: PNG database Select default 6.2 ... begin INF RelativeI. Preface Because of the working relationship, encountered a very large number of data paging problem, the total number of data is 80 million, this is obviously not a simple paging can be solved, need to consider from many aspects, from the sub-table, sub-library and so on. But this also let me consider the problem of paging performance, in the c
by Xtblock/abamonMy personal blog station: www.zy2zy.comReprint Please specify source: Http://www.zy2zy.com/apache-nginx comparison and VPS Performance Optimization Summary/ObjectiveApache and Nginx are open source, cross-platform, free HTTP server. Apache has been the most popular server since 1996, and by 2009, the Apache site has reached 100 million. The goal of Nginx design is to become an efficient ser
Smart switches are still commonly used, so I studied them ~ A comprehensive comparison of layer-7 smart switch products is provided here to share with you, hoping to be useful to you. The Cisco CSS 11500 series content service smart switch is a compact modular platform that provides the most abundant layer-4-7 traffic management services for e-commerce applications. This product has a Cisco Web Service (WebNS) module that provides powerful transmissio
1. Order Introduction
①locate
The Linux Locate command is used to find documents that match the criteria, and he goes to the database where the document and directory names are stored, looking for documents or directories that conform to the template style criteria.
Generally we just need to enter locate Your_file_name to find the specified file.
②find
Find command is the Linux system to look up the file command, the biggest role is to help users in
Performance Comparison between mysql and oracle databases using PHP:
The test uses my machine. the configuration is as follows:
CPU: C433
Memory: 128 MB
Hard disk: Cool 2 generation 20G
Test Software description:
Windows nt server4, sp5, apache 1.3.12, php3.0.15, php4rc1, mysql 3.22.29, and oracle 8.0.5 are used in WIN32.
In linux, bluepoint linux1.0, apache 1.3.12, php4rc1, and mysql 3.22.32 are used.
Te
Performance Comparison between mysql and oracle databases using PHP. Test hardware description: test uses my machine, the configuration is as follows: CPU: C433 memory: M hard disk: Cool 2 generation 20g test software description: WIN32 uses windowsntserver4, sp5, test hardware description:
The test uses my machine. the configuration is as follows:
CPU: C433
Memory: 128 MB
Hard disk: Cool 2 generation 20G
Performance Comparison between mysql and oracle databases in PHP. Use a very simple table. mysql and oracle use the same table structure and have only three Fields. the structure is as follows: mysql table structure: CREATETABLEboard (board_idsmallint (6) A simple table is used. mysql and oracle use the same table structure and have only three Fields. the structure is as follows:
Mysql table structure:
Crea
This is a creation in
Article, where the information may have evolved or changed.
The serialized library is often used in the environment of network transmission, RPC, database access, and its performance directly affects the performance of the whole product.This article lists several high-performance go language seria
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