rails performance monitoring

1. The importance of performance optimizationReduce server stress (quantization is the execution time)Increase the user's goodwill (quick!) ）2. ActiveRecord: Table AssociationActiveRecord can use associations to define the correlation between tables. So far we have learned to use ActiveRecord to manipulate the database, but have not yet fully developed the feature of the relational database, which is to correlate tables through primary key and foreign

MySQL's partitioned table is a simple and efficient way to handle a large data table, which enables the application to achieve efficient processing of large data tables with little change, but the Rails ActiveRecord design practices may result in some data processing not taking advantage of partitioned table attributes. Instead, it becomes very slow, and you must pay more attention to the use of partitioned tables. Here is an example to illustrate. I

It is also necessary to perform basic monitoring on a single server or VPS. In the past, Zhao Rong did not monitor VPS, because when some servers were added, his performance became even more tense. There are also a lot of foreign server performance monitoring websites, but it is a little difficult for people like Zhao

System optimization is a complex, complex, and long-term task. monitoring, collection, testing, and evaluation are required before optimization. After optimization, testing, collection, evaluation, and monitoring are also required, it is also a long-term and continuous process. It is not to say that the optimization is now done, the test is done, and it can be done once and for all in the future. It is not

Brief introduction Many Java applications today rely on a complex set of distributed dependencies and moving parts. Many external factors can have an impact on the performance and availability of your application. These effects are largely not completely eliminated or resolved, and are difficult to simulate accurately in a prebuilt environment. Stuff happens. However, you can create and maintain a comprehensive system to monitor the entire ecosystem

SNMP collects data on server performance, such as CPU usage, memory usage, CPU load, number of system processes, disk space usage, network traffic, disk I/O, and so on, while using the monitoring treasure to process these data can be visually displayed. The following describes how to configureInstalling SNMP1, tohttp://www.net-snmp.org/Download the latest version of the SNMP installation package.1. wgethttp

is divided evenly into three parts, the eldest brother occupies two, and the younger generation occupies a copy. Reference Sun Java System application Server Enterprise Edition 8.2 Performance Tuning guide), this ratio is not suitable for all situations, especially when local variables in your application are far greater than the global variables, and a large number of local variables have a short life cycle. How to reasonably configure the proportio

Front-end performance monitoring system ShowSlow, monitoring system showslow Author: zhanhailiang Date:1. Introduction ShowSlow is an open-source front-end performance monitoring system that provides the following functions: Frontend p