In 32 bit Server,what's the size of Java.Lang.Object

[Vitaly Davidovich]

The presentation may be talking about IBM's VM.  Hotspot obj header is two
words; arrays have an extra int32 for length.

Sent from my phone
On Oct 19, 2012 9:15 AM, "fuyou" <fuyou001 at gmail.com> wrote:

> hi all
>       I am issues about in 32 bit Server,what's the size of
> Java.Lang.Object
> in this blog how-much-memory-is-used-by-my-java<http://kohlerm.blogspot.com/2008/12/how-much-memory-is-used-by-my-java.html>
>   java.lang.Object: 2 * 4 (Object header),the size of Object is 2*4
> but in the sessioCON5135_PDF_5135_0001.pdf<http://www.myexpospace.com/JavaOne2012/SessionFiles/CON5135_PDF_5135_0001.pdf> (page
> 9)   Object Metadata: 3 slots of data (4 for arrays, Class: pointer to
> class information,Flags: shape, hash code, etc, Lock: flatlock or pointer
> to inflated monito)
>  so the size of Object is 3*4
>
> who is right?
>
> --
>    =============================================
>
>   fuyou001
> Best Regards
>
>
>
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