RFR(M) : Add CTW test for boot module

[Vladimir Kozlov]

On 4/12/17 8:15 PM, Igor Ignatyev wrote:
> Vladimir,
>
> In current implementation, CTW is parallelized itself, we compile classes independently by CICompilerCount threads, so I don't think having N separate processes will give us any improvements here.

Where is that code? Code in ClassLoader::compile_the_world_in() iterates methods only.

I also don't see CompileTheWorld flag in new test files. Only CompileTheWorldStartAt.

Vladimir

>
> -- Igor
>
>> On Apr 12, 2017, at 7:55 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
>>
>> Igor,
>>
>> When we ran CTW in Nightly before we sliced rt.jar to few parts using CompileTheWorldStartAt/CompileTheWorldStopAt to get better parallelism.
>> Can we do the same here? You already have mechanism to restart with N+1 after error.
>> 2 hours for serial test execution is too long - would be nice to parallelize it.
>>
>> Thanks,
>> Vladimir
>>
>> On 4/12/17 7:23 PM, Igor Ignatyev wrote:
>>> http://cr.openjdk.java.net/~iignatyev//8178291/webrev.00/index.html
>>>> 237 lines changed: 236 ins; 0 del; 1 mod;
>>>
>>> Hi all,
>>>
>>> could you please review the patch which adds a test which runs CTW for lib/modules?
>>>
>>> Besides a file w/ jtreg test description, the patch contains CtwRunner class, which is a driver class for CTW tests. it compiles all classes from a target and, in case of an error, saves information about the error and restart CTW starting from the next class. The test takes approx. 2 hours to complete.
>>>
>>> currently there are 20 known errors related to class initialization. corresponding bugs will be filed and fixed shortly.
>>>
>>> webrev: http://cr.openjdk.java.net/~iignatyev//8178291/webrev.00/index.html
>>> jbs: https://bugs.openjdk.java.net/browse/JDK-8178291
>>> testing: test/applications/ctw/Modules.java
>>>
>>> Thanks,
>>> -- Igor
>>>
>