.net franework<configuration> <runtime> <gcServer enabled="true"/> <gcConcurrent enabled="true"/> </runtime> </configuration>   .netcore// .csproj <PropertyGroup> <ServerGarbageCollection>…

前言 在阅读这篇文章:Announcing Net Core 3 Preview3的时候,我看到了这样一个特性: Docker and cgroup memory Limits We concluded that the primary fix is to set a GC heap maximum significantly lower than the overall memory limit as a default behavior. In retrospect, this choice…

原文地址:http://www.oracle.com/webfolder/technetwork/tutorials/obe/java/gc01/index.html Overview Purpose This tutorial covers the basics of how Garbage Collection works with the Hotspot JVM. Once you have learned how the garbage collector functions, lear…

AutoReleasePool autoreleasepool并不是总是被auto 创建,然后自动维护应用创建的对象. 自动创建的情况如下: 1. 使用NSThread的detachNewThreadSelector:toTarget:withObject:方法创建新线程时,新线程自动带有autoreleasepool. 2. Main thread of Cocoa Application 以下情况需要开发者创建: 1. 在使用Dispatch Queue时, 虽然其Pool中每个thread…

JVM垃圾收集(Java Garbage Collection / Java GC) Java7 Java8 JDK1.8之后将最初的永久代取消了,由元空间取代. 堆内存调优简介 public static void main(String[] args){ //返回 Java 虚拟机试图使用的最大内存量. long maxMemory = Runtime.getRuntime().maxMemory() ; //返回 Java 虚拟机中的内存总量. long totalMemory = Run…

本文是Unity官方教程,性能优化系列的第三篇<Optimizing garbage collection in Unity games>的翻译. 相关文章: Unity性能优化(1)-官方教程The Profiler window翻译 Unity性能优化(2)-官方教程Diagnosing performance problems using the Profiler window翻译 Unity性能优化(3)-官方教程Optimizing garbage collection in Uni…

Java Memory Management, with its built-in garbage collection, is one of the language's finest achievements. It allows developers to create new objects without worrying explicitly about memory allocation and deallocation, because the garbage collector…

source URL: http://www.infoq.com/articles/Java_Garbage_Collection_Distilled Name: Java Garbage Collection Distilled Author: Martin Thompson PostDate: 2013-06-17   翻译前言 作者还出了本关于Java性能tuning的书. 翻译这篇文章的目的是缓解上次在支付宝面试时仅回答出堆中有Young和Perm代这样的尴尬. 为自己的人生信条代言:W…

一.collection 1.由多个cores组成一个逻辑索引叫做一个collection.一个collection本质上是一个可以跨越多个核的索引,同时包含冗余索引. 2.collection由不同的shard组成,每个shard又多个replica,每个shard中有一个leadereplica,每个replica是一个物理索引,所以一个replica对应一个core   二.core和collection的区别   1.在单节点的solr上,一个core等于一个collection. 2.…

As we’ve seen, the performance of the garbage collector is not determined by the number of dead objects, but rather by the number of live ones. The more objects die, the faster garbage collection is. If every object in the heap were to be garbage-col…