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Category: Performance

Whether you are a system designer, developer or tester, to build a high-performance system, you need to understand the following concepts: 1. Response time is the time for the system to respond to user requests, and response time is the user’s most intuitive experience of system performance. Therefore, the performance of the system is directly expressed. 2. Concurrent users, within a certain time frame, the largest number of simultaneous online users, that is, the number of peak online users 3. System throughput refers to the number of requests processed by the system within a unit time 4. Think Time, From a business perspective, this time refers to the time interval between each request when the user performs an operation. In order to simulate this time interval during performance testing, the concept of thinking time is introduced to more realistically simulate the user’s operate. In the formula of throughput, F=VU * R / T shows that throughput F is a function of the number of VUs, the number of requests issued by each user R, and time T, and R can be calculated by time T and user thinking time TS Calculation: R = T / TS

Performance – How to use JMeter to simulate 1000 concurrent users

Is it possible to simulate 1000 to 10000 users to jmeter?

If so?

Only test 1k users in 1 thread group:

Thread users = 1000,
Acceleration = 10, which means it will test 1000 users

October 2, 2021By Simo Performance concurrent, How, JMeter, performance, simulation, use, userLeave a Comment

Performance – Use O (1) Performance to initialize n element array?

Does anyone know what I should do?

Thank you

http://eli.thegreenplace.net/2008/08/23/initializing-an-array-in-constant-time/

Does anyone know what should I do?

Thank you

October 2, 2021By Simo Performance array, element, Initialization, performance, useLeave a Comment

Performance – Monocarn-only memory bandwidth

On modern multi-core platforms, the parallel performance of memory bandwidth limiting applications usually does not adapt well to the number of cores. Generally, speedups are observed on a certain

October 2, 2021By Simo Performance achievable, bandwidth, Core, memory, performance, singleLeave a Comment

CXP optical module

CXP optical module is another high-speed optical module in the 100G optical module market. It is mainly used in the 100G market to meet the high-density needs of data centers. It is usually used wi

October 2, 2021By Simo Performance CXP, light, moduleLeave a Comment

Performance – Data Structure: Tree similar to Wikipedia

I am currently developing an ontology, a Web hierarchy of all categories (thinking people, places, things). The finished product should allow me to download from Technology-> Computers-> Laptops->

October 2, 2021By Simo Performance data, performance, similar, structure, Tree, WikipediaLeave a Comment

Have some money for your future

To be Spend some money in your future 1.Free , What is waived is money, and what is paid is time and efficiency cost I went to a training a while ago. The organizer is a very, very good friend of

October 2, 2021By Simo PerformanceLeave a Comment

Configure system memory capacity

These kernel parameters may help improve the memory utilization of the system. These parameters are temporarily set for testing purposes by changing the values ​​of the corresponding files in the /

October 2, 2021By Simo Performance capacity, configuration, memory, systemLeave a Comment

[I] System.io.pipelines

System.IO.Pipelines is a new library designed to make it easier to perform high-performance I/O in .NET. The goal of this library is the .NET Standard applicable to all .NET implementations.

October 2, 2021By Simo Performance io, pipelines, system, system.io.pipelinesLeave a Comment

WPF – Continuous CANEXECUTE Call in WPF – Command

I am applying the MVVM pattern to a project. I have a UserControl which has a button which is bound to a command exposed by the ViewModel.
Since the button is visible, It will continue to call the

October 2, 2021By Simo Performance call, CANEXECUTE, Command, continuous, loss, performance, WPFLeave a Comment

Parallel processing – Julia parallel acceleration performance for large-scale calculation

General situation:

I developed a fairly large Navier-Stokes (finite difference) solver written in FORTRAN90. It has an adaptive network Grid (hence the load balancing problem), I tried variou

October 2, 2021By Simo Performance acceleration, Calculation, for, julia, large scale, parallel, performance, ProcessingLeave a Comment

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