Comments on: Java Memory Problems

By: zercath

zercath — Wed, 14 Jul 2010 17:39:13 +0000

Could someone get a better deal with a 645 and Phase One back… Totally. But if you are a pro studio guy and what clean files, the S2 delivers although not a real medium format. Gee we see her contact lenses. As for the Leicas not being used…well it is a shame but for those who do it is very rewarding. I bought my M8.2 because I was fed up of coming back with 3000 pics of the same things, Leica slows me down and helps me artistically.

By: Top 10 Performance Problems taken from Zappos, Monster, Thomson and Co | Blue74

Tue, 13 Jul 2010 15:37:18 +0000

[...] Reads: Java Memory Problems, Identify GC Bottlenecks in Distributed [...]

By: Andy Fields

Andy Fields — Fri, 09 Jul 2010 19:24:00 +0000

Great article thanks! I’ve been using a product from OPNET called Panorama to find these production application issues, but I like your GUI!

By: Top 10 Performance Problems taken from Zappos, Monster, Thomson and Co Performance, Scalability and Architecture – Java and .NET Application Performance Management (dynaTrace Blog)

Wed, 16 Jun 2010 18:31:50 +0000

[...] Reads: Java Memory Problems, Identify GC Bottlenecks in Distributed [...]

By: Week 5 – Hunting Lost Treasures: Understanding and Finding Memory Leaks Performance, Scalability and Architecture – Java and .NET Application Performance Management (dynaTrace Blog)

Wed, 03 Mar 2010 09:58:41 +0000

[...] I’ve already discussed in another post, memory leaks in Java are not “classical” leaks. As the Garbage Collector automatically frees [...]

By: Alois Reitbauer

Alois Reitbauer — Mon, 22 Feb 2010 11:51:11 +0000

Hello Sasidhar,

sorry for replying a bit. Did you see any high GC activity?

By: sasidhar

sasidhar — Wed, 18 Nov 2009 06:23:42 +0000

We have web application the session time is 5hr.
Per day we will get around 1000 to 2000 visits.

I observed that sometimes application is not responding till we restarts the tomcat.

I configured visualgc when I observe the graph these are the values of different generations.
total size is 256.

Eden Spacef(60.00M, 60.00M): 45.22M
Old Gen(176.0M, 140.0M): 123.28M
Perm Gen(64.0M, 24.0M): 23.456M

And I observed in logs I didn’t find any OutOfMemory problems there.

Could you give any suggestions, what may the problem.
After restarting tomcat it is working for 1 day or 2days after that once again hangs.

our application follows struts.

By: acai

acai — Thu, 12 Nov 2009 12:51:28 +0000

Java is using memory at very high rank normally. But there is lot more memory tactics are also available in it like garbage collector, object serialization. Object reference is using much memory than any other things. Try is always worked for less memory consumption.

By: Ivan

Ivan — Mon, 07 Sep 2009 17:48:00 +0000

A common issue in highly loaded applications with a large heap is creating too many threads with large stack size and then getting OutOfMemory’s (“can’t create native thread”) or even silent crashes of the JVM.

Also, some JVM bugs (nio) can lead to stuck threads and rapid thread count growth and in the end you have the same issue.

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Mon, 31 Aug 2009 20:55:28 +0000

[...] Java Memory Problems Performance, Scalability and Architecture … [...]