multithreading - Java: Asynchronous concurrent writes to disk -

i have function in main thread write data disk. don't want main thread stuck (high latency of disk i/o) , creating new thread write overkill. have decided use executorservice.

executorservice executorservice = executors.newfixedthreadpool(3);     future future = executorservice.submit(new callable<boolean>() {     public boolean call() throws exception {       logger.log(level.info, "writing data disk");       return writetodisk();     }   }); 

writetodisk function write disk

is nice way do? refer better approach if any?

update: data size greater 100 mb. disk bandwidth 40 mbps, write operation take couple of seconds. don't want calling function stuck has other jobs, so, looking way schedule disk i/o asynchronous execution of calling thread.

i need delegate task , forget it!

there 2 approaches aware of, spin thread (or use pool of threads have) or memory map file , let os manage it. both approaches, memory mapping file can as 10x faster using java writers/streams , not require separate thread bias towards when performance key.

either way, few tips optimize disk writing try preallocate file possible. resizing file expensive. spinning disks not seeking, , ssds not mutating data has been written.

i wrote benchmarks me explore area awhile back, feel free run benchmarks yourself. amongst them example of memory mapping file.