如果我们显式设置-XX:+UseParallelGC(JDK 8 中默认),分数会稍微好一些。 但最有趣的部分是 JDK 11 的速度变慢。 这是async-profiler 显示的内容(可点击的 SVG)。 两个配置文件之间的主要区别在于java_lang_Throwable::get_stack_trace_elementsblock 的大小,该大小由StringTable
The java 8 vs java 11 comparison looked at all the new features and improvements in Java versions. We also know about all the features and functionality that Java 11 has removed, and its although Oracle still supports Java 8, upgrading to Java version 11 is a wise move. To Upgrades in s...
Java Performance Tuning by Jack Shirazi Effective Java by Joshua Bloch Java Performance: The Definitive Guide by Scott Oaks
Every new release of Java provides more scope for performance improvements, the magnitude of which depends on the application. This section describes the effects of varying the Java release within a CICS environment for various workloads.
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Java jdbc 驱动 maxPerformance 配置避坑,作者:TNTT一、现象https://docs.pingcap.com/zh/tidb/stable/performance-tuning-practices#%E5%BA%94%E7%94%A8%E9%85%8D%E7%BD%AE-1官方文档建议使用maxPerformance屏蔽JDBC向数据库发送的一些查询设置类的SQL语句发现使用maxper
java/kotlin high performance lightweight solution for jdbc query,support oltp and olap query,support any structDTO一款java下面支持强类型、轻量级、高性能的ORM,致力于解决jdbc查询,拥有对象模型筛选、隐式子查询、隐式join查询和任意格式拉取、穿透获取结构化DTO等功能支持 ...
7. Just-in-time (JIT) compiler 8. Using VisualVM (jvisualvm) 8.1. What is VisualVM? 8.2. Creating a heap dump with 9. Load Test 10. Links and Literature 10.1. Performance 10.2. vogella Java example code This article will be a collection of Java performance measurement pointer. It ...
老李分享:《Java Performance》笔记1——性能分析基础1.性能分析两种方法:(1).自顶向下:应用开发人员通过着眼于软件栈顶层的应用,从上往下寻找性能优化的机会。(2).自底向上:性能专家从软件栈底层的CPU统计数据(例如CPU高速缓存未命中率、CPU指令效率)开始,逐渐上升到