How should I stop the forked VM?

[Behrooz Nobakht]

Hi again,

So I started to use jstack -l on the ForkedMain for my benchmark. Here are
some observations:

   - There are threads all with TIMED_WAITING state.
   - I do not have explicit control over the above threads.
   - If I do a System.exit(0) somewhere inside ForkedMain, then JMH is
   annoyed and will not continue.

Is there a way, I can safely, issue a System.exit() and JMH would continue
to finalize the benchmark?

Thanks,
Behrooz
​

On Fri, Jan 9, 2015 at 9:24 PM, Behrooz Nobakht <nobeh5 at gmail.com> wrote:

> Hi Dmitry,
>
> Thanks for your reply. That's exactly what I already did. I stop the
> embedded server setup (Jetty/Jetty) in @TearDown fixture method. However, I
> did not know the second which there's no guarantee that the same thread
> would be used to shut down the forked VM. I'd appreciate any further ideas.
>
> Thanks,
> Behrooz
>
>
> On Fri, Jan 9, 2015 at 6:18 PM, <vyazelenko at yahoo.com> wrote:
>
>> Hi Behrooz,
>>
>> You can use @Setup/@TearDown pair, i.e. start Jetty in setup and kill it
>> in teardown. However keep in mind that JMH does not guarantee that the same
>> thread that executed @Setup will execute @TearDown when multiple threads
>> are used.
>>
>> Best regards,
>> Dmitry
>>
>> Sent from my iPhone
>>
>> > On Jan 9, 2015, at 17:05, Behrooz Nobakht <nobeh5 at gmail.com> wrote:
>> >
>> > Hi,
>> >
>> > I am running JMH in a setup in which I bring up embedded Jetty/Jersey
>> > applications in one thread in the forked VM and add shutdown hooks for
>> the
>> > forked VM. Now, when I run JMH benchmars:
>> >
>> > - using fork = 1, when the benchmark is done, nothing happens (result
>> > output) and it seems to waiting for some of the threads in the forked
>> VM to
>> > finished. I even tried to explicitly shutdown threads including
>> > Jetty/Jersey.
>> > - using fork = 0, JMH reaches to the point to print the results, but it
>> > still it never finishes.
>> >
>> > My hunch is that I have a bunch of ExectuorService instances on the
>> forked
>> > VM but I do not have explicit control over shutting them down. How
>> should I
>> > fix this issue?
>> >
>> > Thanks,
>> > Behrooz
>>
>
>
>
> --
> -- Behrooz Nobakht
>



-- 
-- Behrooz Nobakht