Mark word in openJDK

John Rose john.r.rose at oracle.com
Thu May 3 16:02:11 PDT 2012


That's a good link; thanks.  I put a few more here:
  https://wikis.oracle.com/display/HotSpotInternals/CompressedOops

— John

On May 3, 2012, at 3:13 PM, Krystal Mok wrote:

> Hi Xin,
> 
> The HotSpot VM is derived from a Smalltalk Vm, called Strongtalk. You could probably get a better grasp of what oop means if you know the history: http://code.google.com/p/strongtalk/wiki/VMTypesForSmalltalkObjects
> 
> - Kris
> 
> On 2012-5-4, at 3:46, Xin Tong <xerox.time.tech at gmail.com> wrote:
> 
>> On Thu, May 3, 2012 at 3:16 PM, Keith McGuigan
>> <keith.mcguigan at oracle.com> wrote:
>>> 
>>> Take a look at src/share/vm/oops/markOop.hpp
>>> 
>>> 
>>> On 5/3/2012 2:49 PM, Xin Tong wrote:
>>>> 
>>>> I am new to hotspot JVM. I am wondering where  ( which hpp file ?) is
>>>> the data structure of the mark word used in each object declared ?
>>>> 
>>>> Thanks
>>>> 
>>>> Xin
>> 
>> By the way, what does Oop stand for in hotspot ?
>> 
>> Thanks
>> 
>> Xin



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