How to know from JVM stack trace that it is in GC pause

Question

I am running kill -3 or jstack on my application, I want to know if it is in GC pause during that time, Is there an easy way to find out from the output?

Does it answer while in GC pause? I would expect it to work nativly some how so yes.

Well, you can at least detect whether it is running at all by looking at the GC thread status — fge, Mar 25 '15 at 07:24
You can watch the jstat to see if a GC has occurred around the time you perform an action. — Peter Lawrey, Mar 25 '15 at 07:34

score 2 · Answer 1 · edited May 23 '17 at 11:56

2

see this answer, maybe it answers your question. Basically, the kill -3 will wait for the GC to be completed, or get to a safe point, so you can't notice it.

edited May 23 '17 at 11:56

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answered Mar 25 '15 at 07:24

oshai

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How to know from JVM stack trace that it is in GC pause

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