Removing G1 Reference Post Write Barrier StoreLoad Barrier

Thomas Schatzl thomas.schatzl at oracle.com
Mon Dec 22 18:31:53 UTC 2014


Hi,

On Mon, 2014-12-22 at 18:52 +0100, Thomas Schatzl wrote:
> Hi,
> 
> On Mon, 2014-12-22 at 09:09 -0800, Jon Masamitsu wrote:
> > Erik,
> > 
> > One concern regarding the use of asymmetric Dekker synchronization
> > (ADS) is how well this technique scales to 1000's of threads.  Do you 
> > have an
> > implementation where you can measure the scalability?
> 
>   another potential problem is that mutator threads might (and already
> do in some workloads) also help with refinement.
> 

^^^ which behavior at least partially invalidate your assumptions about
having "fast" and "slow" threads.

Thanks,
  Thomas




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