Speaking of performance tuning, I think everyone knows it, but I haven’t used it much, so I face a lot of troubles in Java performance optimization, such as:
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In ability training, due to years of exposure to CRUD and the lack of a high-concurrency practice environment , "performance optimization" can only be imagined through theoretical knowledge, and it is impossible to understand its true face and practical process in actual work. 2
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When encountering the problem of "performance optimization" in the work scene, we can only rely on blind guessing and feeling, and use temporary remedial measures to cover up the problem. It seems that the problem has been solved, but the same problem will occur again next time. The reason is the lack of methodology , guidance of ideas, and tool support 3
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In the promotion of the workplace, if you only focus on functional development, do not understand the principles of component design, lack in-depth thinking and summary, and cannot complete high-level tasks such as high-concurrency and high-performance system design , it is difficult to flex your muscles in the work, and challenging tasks often for those who are prepared
In addition, due to the exclusiveness of performance tuning, different systems and programs cannot be used universally, so the basic knowledge required for tuning is much higher than that of writing programs. It is also a standard for measuring the ability of a programmer, and largely determines the upper limit of salary . Therefore, the current job requirements and interviews all value these:
Whether it is from the perspective of recruitment and interviews, or the perspective of work practice, it is recommended that you have time to supplement these technologies, such as: JVM, Mysql optimization, concurrency underlying...
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Ali 2023 version Java performance optimization actual combat
The document covers Java programming, multi-threading, JVM, design patterns, databases, and actual combat. It can be said that it covers all aspects of Java performance optimization. Let’s look down: you need the full version to see the end of the article
Overview of Performance Tuning
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What reference factors can reflect the performance of the system?
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How to develop a performance tuning strategy?
Five directions of performance tuning
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Java Programming
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Multithreading
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JVM articles
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Design Patterns
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Database
Performance optimization in practice
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Database implements distributed lock
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E-commerce system distributed transaction solution
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Service Layer Caching Technology
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Alibaba Double Eleven snap-up business process
at last
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