akka performance

This is a creation in Article, where the information may have evolved or changed. Golang unit testing, performance testing, performance monitoring technology The go language provides powerful testing tools, with an example of a brief introduction Go Test Unit Testing Go test-bench=. Performance testing Go tool pprof

What is the concept and basic purpose of Performance Testing? I think everyone knows it clearly and I will not elaborate on it. In short, performance testing is only a method in the testing process, it helps us to run our functions better. If function testing is available, easy to use, satisfying requirements, and intended for use, performance testing is nothing

Raid 10 Vs. RAID 5 performance provides a Performance Data graph that uses sqlio. EXE to generate 8 KB random reads and writes, with a performance gap nearly doubled. Disk access time = disk seek time + latency Latency = 1 minute/RPM/2 The main factor determining iops is the array'sAlgorithm, Cache hit rate, and number of disks. The array algorithms vary

"Editor 's note" Previously, read a lot about PHP performance analysis of the article, but it is written in a single rule, and the rules are not context, there is no clear experiment to reflect the advantages of these rules, while the discussion also focuses on some grammatical points. This article changes the PHP performance analysis angle, and through the example to analyze the PHP

I used to pursue new things, and found the foundation is the most important, this year's main goal is to master SQL query and SQL performance optimization.This series of "T-SQL Fundamentals" is primarily a summary of the T-SQL Foundation."T-SQL Basics" 01. Single-Table query-several SQL query questions"T-SQL Basics" 02. Join Query"T-SQL Basics" 03. Subqueries"T-SQL Basics" 04. Table Expression-Previous"T-SQL Basics" 04. Table Expression-Next"T-SQL Bas

Original address: http://maoyidao.iteye.com/blog/1663193A service that is deployed on only 4 servers, writes more than 1 million rows of data to database per second, producing more than 1G of data per minute. The CPU on each server (8 cores 12G) consumes less than 100%,load 5. How is this done? Here is a description of the architecture, the core of which is an efficient buffer design, and our requirements for it are:1, the buffer should be as simple as possible2, try to avoid producer thread and

stored in the memory, use the range query to load the first 20% of the data into the memory as hotspot data, for example: select count (*) FROM BT_KV_SHORT_INT_CHAR_10KW WHERE col1 Project Model Number of table records 1KW (3G), 2KW (6G), 5KW (15G), 10KW (30G) Key INT Value CHAR (250) Hotspot data 20% of total data The performance test results are as follows: [Query] The detailed anal

The sameAlgorithmWhy is there an order of magnitude of performance difference? The problem originated from a discussion with a netizen several months ago. This netizen is writing a wedding photo.Program. Generally, wedding photography images are large, even tens of millions of pixels. The problem with this user using C # development is performance. At that time, he was suggested to use xNa for development,

C ++ performance analysis (1): Performance AnalysisC ++ performance analysis (1) Performance problems can not be solved simply by "technology". They are often a comprehensive problem such as architecture, testing, and assumptions. However, an engineer must start from an early stage and solve some small "obvious" proble

Occasionally saw Ali middleware Dubbo performance test Report, I think this performance test report makes people feel that the performance test people do not understand the performance test, I think this report will take the public ditch, so, want to write this article, do a little popular science. First of all, the ma

Tags: time interval fetch number release operation rebuild file GIF world loadThe IO performance of SQL Server is affected by the IO latency of the physical disk and the IO operations performed internally by SQL Server. When monitoring disk performance, the primary measure (metric) is IO latency, which is the time delay in creating an IO request from application to disk to complete the IO request. SQL Serve

Here we introduce performance testing, load testing, and stress testing. As one of the important quality attributes of ISO 9126 internal and external quality, efficiency is defined as the ability of a software product to provide the right performance relative to the amount of resources used in the specified conditions. Resources may include software and hardware configurations for other software products or

Use Shark to tune your iphone app for performance (using Shark to performance Tune Your iphone app)The beautiful Life of the Sun Vulcan (http://blog.csdn.net/opengl_es)This article follows "Attribution-non-commercial use-consistent" authoring public agreementReprint Please keep this sentence: Sun Vulcan's Beautiful Life-this blog focuses on Agile development and mobile and IoT device research: IOS, Android,

High-performance JavaScript loop statements and conditional statements, and high-performance javascript I. Cyclic statementsAs we all know, common loop statements include for, while, do-while, for-in, and forEach. In addition to the for-in and forEach performance, we usually choose the first three based on requirements rather than

Notes on building a high-performance web site-Infrastructure Building a high-performance web site-Application Cause It took me less than a month to finish reading this 400-page book "Building a high-performance web site". I have to say that this is the first time I have fully read a book in the real sense, although I have read many technical books. One of

PHP performance optimization for PHP language level performance optimization First of all, what are the reasons for the performance of PHP that is affected by this problem? That is 1 What happens when PHP performance issues occur? Improper use of 1php syntax (including certain services can be handle