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IBM Java 8 support appears to have issues #55

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sesuncedu opened this issue Jul 25, 2018 · 0 comments
Open

IBM Java 8 support appears to have issues #55

sesuncedu opened this issue Jul 25, 2018 · 0 comments

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@sesuncedu
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sesuncedu commented Jul 25, 2018

Test environment is linux,amd64

With compressed references.

  • Empty array reported as using 16 bytes by Agent but 8 bytes by Unsafe.
  • new Object[1] is reported as using 16 bytes by Agent and Unsafe.

With compressed references disabled,

  • new Object() size is reported as 16 bytes by Agent and 24 bytes by Unsafe

Header sizes in JvmInformation appear to be incorrect

  • 16 bytes for 32 bit /compressed refs, 24 bytes for uncompressed refs
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