FYI: Very compact "lean" version of DelegatingScheduler
magicprinc opened this issue · comments
This is the continuation of #349
Here:
https://github.com/magicprinc/failsafe/commits/leap_of_faith
Final memory balance:
-1 fat object CompletableFuture
-1 lambda Callable in DelegatingScheduler.schedule
-1 Callable-Runnable wrapper in delayer().schedule
(Runnables are wrapped as Callables in FutureTask ctor)
+1 very lean object ScheduledCompletableFuture implements ScheduledFuture, Callable
(not a CompletableFuture anymore)
I am sure this is the final step and one can't optimize this class further.
Not a single unused byte in memory!
I did a (not scientific) memory test:
Old scheduled task in memory: 193 bytes
New scheduled task in memory: 136 bytes
70% of original