RFR (S): JEP-142: Reduce Cache Contention on Specified Fields

Aleksey Shipilev aleksey.shipilev at oracle.com
Mon Nov 26 00:55:02 PST 2012

On 11/26/2012 01:22 AM, Kirk Pepperdine wrote:
> My mantra has always been, measure, don't guess.

...said the guy before start guessing about the impact for this
annotation :D

We know exactly where this helps, and where library developers sorely
need this functionality, so here we are. In a few years, having this
annotation around would help us to understand if that is applicable on
broader scope, and what are the preconditions to be granted while
applying this optimization. Having all that on the table, we could
finally rationalize the budget needed to research and bringing on the
automatic field layout. Before that, it's preposterous to invest several
man-years into developing the optimization now known to be needed in a
handful of cases.


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