CODEWITHSUNDEEP
javagarbage-collection
lowLatency
lowLatency

Reputation: 5654

frequent gc pauses - how to debug/profiling

We have a application, which is doing frequent gc pauses(mostly young gen)[young gen has UseParNewGC]. Please suggest how to go about to debug the issue.
jVisualVM, gcViewer,Jrpofiler,jmap - which can help best or a combination of these.
Env:
Windows Server 2003
JDK 1.6

Upvotes: 2

Views: 797

Answers (2)

R.Moeller
R.Moeller

Reputation: 3446

High frequent NewGen Collections are caused by a high allocation rate. VisualGC ("Sampler") should be sufficient to track down which classes are allocated most. A possibility to reduce newgen frequency is, to increase Eden size like described in e.g. here

Upvotes: 1

Aleš
Aleš

Reputation: 9028

It's hard to give any suggestions without more details. Every GC issue is specific.

But, you should start with : Is there a cookbook guide for GC problems?

Upvotes: 1

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