mongoose performance

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

To the photographic enthusiasts for detailed analysis to share the Canon SX240 HS camera performance and Canon 60D camera performance comparison. Analytical sharing: Canon SX240 HS adopted a 12.1 million-pixel 1/2.3-inch CMOS image sensor, and equipped with a new DIGIC 5 image processor to enhance the high sensitivity of the quality performance, joined

Recent project team colleagues told me that there was a SQL performance problem, he said the entire table has only 69 records, client execution cost two minutes, very unscientific. I helped analyze the cause and get it resolved. The following small series installs similar table structure, constructs a case, the test screenshot looks like this: This table has 13800KB (that is, 13M), because the table saves the picture to the database (item_photo fie

Http://www.wtoutiao.com/p/1deiv1x.html Web performance that developers should know Concurrent Programming Network (Ifeve) · 2016-01-04 22:16 What's the difference between a fast and slow website? Is there a correct answer? No, unfortunately, not yet. The reason for this is that there are many factors on the site, and each of these factors can slow down the site. Therefore, this article will not give you a list of what needs to be done, but rather

This article has no technical content, is to test the mssqlhelper in the use of reflection, do not use reflection performance comparison.After that, don't ask why you don't use ORM--there's another article about your own ORM upgrade history these years.Background:I have a mssqlhelper, this helper class is the most basic of a database operations class.When query queries a collection, you can specify a delegate for the reader = = Object--If you do not s

IOS25 performance optimization, memory optimization, and ios25 Performance Optimization 1. Use ARC to manage memory ARC (Automatic ReferenceCounting, Automatic reference counting) and iOS5 are released together to avoid Memory leakage, which is often caused by memory loss. It automatically manages retain and release processes for you, so you don't have to intervene manually. Forgetting the release at the en

JavaScript performance optimization tips: javascript Performance Optimization (Click the public account at the top of the page to follow it quickly) Ivan Č uri-control Http://www.cnblogs.com/powertoolsteam/p/javascript-performance-optimization.html As the most common literal scripting language, JavaScript has been widely used in Web application development

Talking about linux performance tuning 13: performance analysis concepts; talking about linux performance tuning 12: Red Hat optimization strategy Tuned http://www.2cto.com/os/201307/229281.html About the performance metrics of the processor .? CPU usage [CPUUtilization] this may be the most direct indicator... talking

steps of the performance test process---detect (to standardize performance testing) Performance testing of the work of a multitude of, the most afraid of is like a headless fly blindly test, not only time, but also accumulated less than experience, team and individuals are difficult to grow, (the next time the performance