Re: [infinispan-dev] [Discussion] TimeService implementation
On 3 May 2013, at 16:54, Pedro Ruivo wrote:
On 05/03/2013 04:49 PM, Manik Surtani wrote:
>
> On 2 May 2013, at 19:01, Pedro Ruivo <pedro(a)infinispan.org> wrote:
>
>>
>> preciseTime() {return (cached = System.nanoTime());}
>> impreciseTime() {return cached;}
>
> How would you invalidate the cached time?
My idea is to have a schedule thread updating the cached time. the
preciseTime() is just an optimization to keep the cached value more
up-to-date since we are calculating the nanoTime() (and assuming that
nanoTime() is more expensive than write in the volatile variable).
Sounds like a good idea but please don't implement that for now. That's a
performance optimisation and would require benchmarking to prove it's worth doing -
more of a nice to have ATM.
Cheers,
--
Mircea Markus
Infinispan lead (www.infinispan.org)