Comments (1)
TLAB其实就是从堆中拿到,你可以参考书中的图理解,简单的说多个线程都从heap中取一块空间,这个空间就是TLAB,每个TLAB都不会重叠,所以线程可以无锁分配。当使用TLAB的时候,JVM要考虑内存的浪费(也就是TLAB),当发现TLAB不能满足请求的对象大小,这就涉及到一个问题:是把当前的TLAB直接认为满了,还是新分配一个新的TLAB来进行无锁的分配?如果直接认为满了,则进行填充;如果认为存在浪费,则直接把对象分配在heap中,因为涉及到多线程,所以此时分配要进行加锁。
from jdk8u60.
Related Issues (10)
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from jdk8u60.