performance profiling

The two most common bottlenecks for MySQL databases are CPU and I/O bottlenecks, which typically occur when the CPU is saturated, when the data is loaded into memory or read from disk. Disk I/O bottlenecks occur when the load data is much larger than the memory capacity, if the application is distributed over the network, then when the query volume is quite large, then the flat bottleneck will appear on the network, we can use Mpstat, Iostat, SAR and vmstat to view the

Profile the word has (1) shape, outline, appearance, image (2) Impression, Image (3) profile (4) profiles, side-view and other meanings. This word is also very common in computer and communication protocols. Here is a description of it in the field of software system performance analysis.Translation of Wikipedia (Http://en.wikipedia.org/wiki/Profiling_ (computer_programming)) on Profiling explanation: In th

MySQL profiling usage, mysqlprofiling The two most common bottlenecks of MySQL databases are the CPU and I/O bottlenecks. When the CPU is saturated, it usually occurs when the data is loaded into the memory or the data is read from the disk. The disk I/O bottleneck occurs when the loading data is much larger than the memory capacity. If the application is distributed on the network, when the query volume is large, the ping bottleneck will appear on th

Tags: mysql optimization profilingThe profiling of MySQL optimization toolAfter using the slow query log to parse out the slow query statement, analyze the performance of the statement with profiling after optimization.View slow query settingsMysql> Show variables like "%slow%";+---------------------+---------------------------------+| variable_name | Value |+---

Performance analysis ToolsSoftware performance is an important point of inspection of software quality, whether online service programs or offline programs, or even terminal applications, performance is the key to user experience. There are two aspects of performance and stability that are mentioned in the major

Tags: LTE tin tac hit Lex supports RAC query statement testingIn our Java development application process, will inevitably encounter the system performance problems, especially in the enterprise application development process, will deal with the database. When we encounter database performance, the most effective is to directly track the execution of each SQL statement, the optimization of SQL statements,

Label:The use of MySQL ProfilingIn the first section of this chapter we also mentioned the performance bottleneck of using the query Profiler to locate a query, and here we describe in detail the purpose of Profiling and how to use it. To optimize a query, we need to know exactly where this query's performance bottleneck is, is it consuming too much CPU, or does

example, your program uses 100Mbps network link communication, it already uses the link 90Mbps above the bandwidth, then your program does not have much performance improvement space. A similar situation exists for disk IO, memory consumption, and computational tasks. These situations, in mind, then we can look at the available tools. Note: Tools can interfere with each other, for example, accurate memory profil