adjust virtual memory

The main article is read the deep understanding of Java Virtual Machine: JVM advanced Features and Best Practices Chapter II: Java memory area and memory overflow exceptionSome of the notes and summaries.Okay, here we go. If there are any errors or omissions, please point out.I. OverviewFirst, a picture.This diagram mainly lists several areas of

first, the Java memory composition is introduced:堆(Heap)And非堆(Non-heap)Memory According to the official statement, "Java virtual machines have a heap, the heap is a runtime data region, and all class instances and arrays of memory are allocated from here." The heap is created when the Java

Since the work, the more written code, the program is increasingly bloated, less efficient, for me such a pursuit of the perfect programmer, this is absolutely not allowed, so in addition to constantly optimize the program structure, memory optimization and performance tuning has become my usual "trick." To perform memory optimization and performance tuning on Java programs, do not understand the internal

The last time I provided a code response, Since C ++ stand (C ++ Standards Committee) does not specify specific implementation methods, each compiler vendor may adopt different implementation methods, The methods used in different ages may be different, and different results may be obtained. Here, I use vc7.1 as a debugging tool Deeply analyzes the memory layout in the C ++ virtual inheritance step by step;

Recently, I suffered from virtual memory and received reports saying that our products will be restarted from time to time, and the report said that "the memory used exceeds 5 GB ". Restarting is the mechanism of our product. We will monitor the memory, perform GC and restart the application beyond a certain limit, b

1. PrefaceThere are several more important concepts that need to be popularized before garbage collection.2. Concepts and differences in memory overflow and memory leaks:(1): Memory overflow: Refers to the program in the application of memory, there is not enough memory spac

Java Virtual Machine (2) automatic memory management mechanism, Java Virtual Machine1. Summary In the deep understanding of Java Virtual Machine (JVM) study Note 1 Automatic Memory Management Mechanism (I), we listed the following issues:This article mainly summarizes questi

Today, we can see the road to cloud computing in the blog Park.ArticleReprinted. Physical memory, as its name implies, is the space provided by the memory stick on your computer's motherboard. Page file, which is a space on the hard disk and is displayed as a file in windows. The meaning of this page file is that after the physical memory is fully occupied, t

Course Outline:The 1th verse says in front, 00:05:07 minutes.Section 2nd the whole part to be explained 00:06:58 minutes3rd. The relationship between environment construction and JDK,JRE,JVM 00:20:48 min4th JVM Initial Experience-analysis and resolution of memory overflow problem 00:17:59 minutes5th JVM Re-experience-JVM visual monitoring tool 00:21:17 min6th Session 00:12:37 MinutesSection 7th History of Java development 00:27:24 minSection 8th Histo

I. Terms of virtual memory Virtual Memory In the storage allocation mechanism, although the standby address is a part of the primary memory, it can also be addressable. The address used by the program to reference the memory