Hi Aleksey,
What's not very clear is whether the class-level @Contended is the same
as class-level @Contended("group") - is the tag used or ignored when
specified on the class-level. What does the following do?
@Contended("x")
class C {
@Contended("x") int a;
@Contended("y") int b;
int c;
}
Regards, Peter
On 05/23/2013 06:16 PM, Aleksey Shipilev wrote:
On 05/23/2013 07:57 PM, Peter Levart wrote:
Have I understood this correctly?
Yes. @Contended on class is currently the shorthand for the @Contended
with the same (but unknown) tag over all the fields. However, in future
this might change, because @Contended on class might also guard the
object header, as soon as we are brave enough to tap into the GC
interface to allocate the @C objects aligned for the cache line boundary.
-Aleksey.
