Simplest way to run benchmark for single class?

[Eugene Voytitsky]

Aleksey, thanks a lot.
With your clarifications all are clear and work fine.

ps. sorry for late response.


On 24.07.13 15:51, Aleksey Shipilev wrote:
> Hi Eugene,
>
> On 07/24/2013 03:59 PM, Eugene Voytitsky wrote:
>> I tried to run it from IDEA as app "org.openjdk.jmh.Main -v
>> .*JMHSample_11_Loops.*"
>> I got:
>> No matching benchmarks. Miss-spelled regexp? Use -v for verbose output.
>> Benchmarks:
>>
>> Yes, indeed, I don't have any /META-INF/MicroBenchmarks, so
>> MicroBenchmarkList.defaultList() produces empty result.
>
> Have you tried to force compilation first to let JMH generate that for
> you? In IDEA, it seems enough to add "Run Maven Goal 'JMH
> Samples:install'" before launching the configuration.
>
>> I wonder why main() so coupled with defaultList() (with presence of
>> /META-INF/MicroBenchmarks file) :
>>      Runner runner = new Runner(cmdOptions);
>>      runner.run(MicroBenchmarkList.defaultList());
>
> The major issue here is that we generate lots of auxiliary code during
> the benchmark compilation, and the entry point is different from the
> class you have. Hence, it is not enough to just have the name of class
> bearing @GMB methods. We may reconsider this going forward.
>
> We also see that running benchmarks from IDE is not a good idea anyway:
> we better push users to use the standalone VMs where they control the
> invocation precisely.
>
>> I don't want to write any /META-INF/MicroBenchmarks.
>> I want to benchmark single class passed as arg to Main.
>>
>> How to do so?
>
> You might want to execute the standalone run with "-v" and capture the
> forked command line. Although it is the internal API and can be changed
> without prior notice.
>
> -Aleksey
>


-- 
Best regards,
Eugene Voytitsky