dynamodb performance

Brief description of performance testing and brief description of Performance TestingPerformance Test content========================================================== ========================================================== ==========================================Currently, accurate definitions of performance tests are rarely seen, but

This is a creation in Article, where the information may have evolved or changed. Performance test Report for Kingshard Before the several blog, to everyone to share is Kingshard (Https://github.com/flike/kingshard) architecture and design. In fact, many people are also very concerned about the performance of Kingshard. Recently enthusiastic Netizen Bigpyer has done the detailed

Label:Today, database operations are increasingly becoming a performance bottleneck for the entire application, which is especially noticeable for web applications. It's not just about the performance of the database that DBAs need to worry about, it's something that our programmers need to focus on. When we design the database table structure, we need to pay attention to the

The performance of programmers , like a long history puzzle, has long plagued a large number of programmers and their leaders.KPI (key performance indicators KPIs) is an enterprise's favorite performance appraisal tool, but KPIs usually only have a broader set of indicators, and generally can only be decomposed into the head of the team manager, and it is difficu

C ++ Performance Analysis (1), performance analysis. C ++ Performance Analysis (1), performance analysis C ++ Performance Analysis (1) Performance problems are not solved simply by technology. they are often Architecture, testing,

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

. NET Performance Tuning series articles Series Article Index . NET Performance tuning: Use of the ANTS performance Profiler . NET Performance Tuning two: Code metrics with Visual Studio . NET Performance Tuning three: tuning tools and methods for YSlow related r

1. Software performanceIEEE (American Society of Electrical and Electronics Engineers) description of software performanceSoftware performance is the inherent characteristic of software, which is expressed as the time spent executing a function of the software.? The description of software performance by national standardsGB/T16260 Software Engineering Product quality Part 1th: In the quality model, the qua

Performance overviewWhy is the program always so slow? What the hell is it doing now? Where did all the time go? Perhaps, you often complain about these problems. If so, it means you have a performance problem with your program. Performance problems in some cases, compared to functional problems, may not be much of a problem, just for a moment, it's gone! However

Speaking of Android phone, most people's impression is a bit of time to become a little lag, some programs in the run inexplicably crashes, open the System folder A look, found a lot of files, and then use the mobile phone butler APP constantly clean optimization, just feel the speed slightly improved point, Even if the mobile phone in a variety of performance in front of the software score ahead, or feel no matter how much memory space is far from en

Note: This article is the third of our series of PHP performance analysis, click here to read PHP performance analysis first: Xhprof Xhgui Introduction, or PHP performance analysis second: In-depth study of Xhgui.In the first chapter of this series, we introduced Xhprof. In the second chapter, we studied the Xhgui UI, and now the last one, let's use Xhprof/xhgui

Performance counters (counter) are some data metrics that describe the performance of a server or operating system. Counter plays a key role in performance testing, especially in analyzing the scalability of the system and locating the performance bottleneck, the analysis of the counter value is very important. However

Tags: io standby log file switch completion lgwr-lns wait on channel1. Recently processed one due to poor performance of standby disk IO, the performance of primary was affected.The main library is mostly waiting for "log file switch Completion", which, through ash dump analysis, finally discovers that the actual wait event is "Lgwr-lns wait on channel". This event basically boils down to the problem of net

IOS App performance optimization and iosapp Performance OptimizationIOS App performance considerations Although the performance of the iPhone is getting better and better, the functions of the app are getting more and more complex. performance has always been one of the core

In-depth Java Program Performance tuning (Amdahl law, cache component, parallel development, thread pool, JVM tuning)Course Lecturer: SpecialCourse Category: Java coreSuitable for people: BeginnerNumber of lessons: 33 hoursUpdate level: CompleteUsing technology: Amdahl Law, caching components, parallel development, thread pooling, JVM tuningProjects involved: the use of patterns in practical developmentIn-depth Java program

JavaScript is a relatively complete front-end development language, in today's web development applications are very wide, especially for Web 2.0 applications. As Web 2.0 becomes more and more popular today, we will find that there will be a lot of JavaScript code in our Web application projects, and that there will be more and more in the future. JavaScript, as a language to interpret execution, and its single-threaded mechanism, determines that performance