[concurrency-interest] Low-latency pause in JDK

Francesco Nigro nigro.fra at gmail.com
Fri Oct 25 06:28:17 EDT 2019


To not mention that you need to consider counted loops/safepoint polls in
the equation

Il ven 25 ott 2019, 19:26 Francesco Nigro <nigro.fra at gmail.com> ha scritto:

> I haven't seen anything yet if not on some initial implementations of the
> fork join pool, lately removed. If you need something that is more aware of
> the OS behaviour eg timeslack_ns probably is something you need to
> implement by yourself afaik :( (see
> https://github.com/JCTools/JCTools/pull/248#pullrequestreview-248613337)
>
> Il ven 25 ott 2019, 19:14 Viktor Klang via Concurrency-interest <
> concurrency-interest at cs.oswego.edu> ha scritto:
>
>> Hey,
>>
>> Is there any jdk-builtin Java8+ method which tries to be clever about
>> low-nanos/micros parking?
>>
>> I'm currently considering LockSupport.parkNanos but want to avoid having
>> the Thread parked when parking + wake-up latency is more likely to be much
>> greater than the requested time.
>>
>> I.e. some combination of onSpinWait + some non-cache-polluting
>> computation + yielding + actual parking. I'd like to avoid having to
>> custom-roll it, hence the question for prior art ;)
>>
>> --
>> Cheers,
>>>> _______________________________________________
>> Concurrency-interest mailing list
>> Concurrency-interest at cs.oswego.edu
>> http://cs.oswego.edu/mailman/listinfo/concurrency-interest
>>
>
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