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  1.  Home
  2. JAVA400-L
  3. February 2020

Re: JVM job for Tomcat taking lots and lots of CPU

Ladies and Gentlemen:

One big unanswered question remains, at least so far as I'm aware:

Given the 64-bit Java 8 JVM, what are the maximum values of -Xms and -Xmx that the JVM is actually capable of using?

I ask this in particular because the Tomcat server's JVM job is running with -Xms3096m -Xmx5120m, and yet the "Heap used at start" in the GC table has not exceeded 2114.0M in the last 300 GC cycles.

--
JHHL

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