java gc log analyzer

growing region of the old age, as the objects of some survivor or Eden areas may be promoted to the old age.Figure 5.6 G1 's new Generation GCAfter the new generation GC occurs, if the Printgcdetails option is turned on, you can get a GC log similar to the following (only partial logs are given here, full logs and their analysis are shown in the 5th. 4.6):0.336:

Today began the actual combat Java Virtual Machine three: "Virtual machine working mode."Total of 5 Series One of the practical Java virtual machines" heap overflow processing " Actual combat Java Virtual Machine Two" virtual machine working mode " Real-time Java Virtual Machine three "G1 of th

Understand Java GC logs and JavaGC logs Analyze the following GC logs: [GC [PSYoungGen: 9216 K-> 1024 K (9216 K)] 1246196 K-> 1246220 K (1287040 K), 0.2398360 secs] [Times: user = 0.29 sys = 0.01, real = 0.24 secs][Full GC [PSYoungGen: 1024 K-> 0 K (9216 K)] [ParOldGen: 12

Java. lang. OutOfMemoryError: GC overhead limit exceeded, limitexceeded The reason for writing it down is that you don't want to find it everywhere next time. Many times the error message is the same, but there are many causes. I tested the adoption of a virtual machine startup:-XX:-UseGCOverheadLimit Write down the original article link and mark it as "thank you; Http://www.cnblogs.com/hucn/p/3572384

method. The procedure is as follows: (1) Open eclipse and create a Java file timebook. Java in the com. gc. action package to simulate the business logic of Attendance Review in actual business. (2) When writing logs in a program, you must write the log-recorded code in each business logic method. The example code of

Com.mai.test;import Org.apache.log4j.logger;import Org.apache.log4j.propertyconfigurator;public class log4jtest {public static void main (string[] args) {Logger log = Logger.getlogger (Log4jtest.class); Propertyconfigurator.configure ("Src/log4j.properties"), Log.debug ("Yes,debug"), Log.info ("Yes,info"); Log.error (" Yes,error "); Log.warn (" Yes,warn ");}}2. Gclogviewer–java

1. log4j– Most popular Java log componentsLog4j is a Java-based open source log component, log4j is very powerful, we can output log information to the console, file, user interface, can also output to the operating system's event logger and some system resident process. It

1. log4j– Most popular Java log componentsLog4j is a Java-based open source log component, log4j is very powerful, we can output log information to the console, file, user interface, can also output to the operating system's event logger and some system resident process. It

://logging.apache.org/log4j/2.x/Here is a simple example of using log4j:Package Com.mai.test;import Org.apache.log4j.logger;import Org.apache.log4j.propertyconfigurator;public class log4jtest {public static void main (string[] args) {Logger log = Logger.getlogger (Log4jtest.class); Propertyconfigurator.configure ("Src/log4j.properties"), Log.debug ("Yes,debug"), Log.info ("Yes,info"); Log.error (" Yes,error "); Log.warn (" Yes,warn ");}}2. Gclogviewer

referenceextends t> r = Reallypoll (); if (r! = null) return R; for (;;) {lock.wait (timeout); r = Reallypoll ();...... }} That is, in the execution of a thread, the Monitor of this object is first obtained with synchronized (corresponding tolocked ); When executing to lock.wait (timeout), the thread discards the ownership of Monitor and enters the "Wait Set" queue (corresponding to theWaiting on ）。 5) from the stack information, is the remote references to remote objects is being cleaned u

following code implementation: Static Private class Lock {};p rivate lock lock = new Lock ();p ublic referenceextends t> r = Reallypoll (); if (r! = null) return R; for (;;) {lock.wait (timeout); r = Reallypoll ();...... }} That is, in the execution of a thread, the Monitor of this object is first obtained with synchronized (corresponding tolocked ); When executing to lock.wait (timeout), the thread discards the ownership of Monitor and enters the "Wait Set" queue (corresponding to theWaiti