[9] RFR(S): 8059390: code cache fills up for bigapps/Weblogic+medrec/nowarnings

[Zoltán Majó]

Thank you, Vladimir and Tobias.

Best regards,


Zoltan

On 10/01/2014 09:59 AM, Vladimir Ivanov wrote:
> Looks good.
>
> Best regards,
> Vladimir Ivanov
>
> On 9/30/14, 6:13 PM, Zoltán Majó wrote:
>> Hi,
>>
>>
>> please review the following patch (contributed by Tobias Hartmann):
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8059390
>>
>> Problem: The code cache fills up for the test
>> bigapps/Weblogic+medrec/nowarnings. Affected platforms are: linux_x64,
>> solaris_sparcv9, windows_x64-64, solaris_x64, with tiered compilation
>> both on/off.
>>
>> Solution: The bug is caused by the segmented code cache changes
>> JDK-8015774. The problem is that with -XX:-SegmentedCodeCache
>> 'CodeCache::reverse_free_ratio' always returns 0 because
>> 'CodeCache::get_code_heap' returns NULL for
>> CodeBlobType::MethodNonProfiled and CodeBlobType::MethodProfiled.
>>
>> Retrieve code heap in CodeCache ::allocate(), in
>> CodeCache::report_codemem_full(), and in
>> CodeCache::unallocated_capacity() also if segmented code cache is 
>> disabled.
>>
>> Webrev: http://cr.openjdk.java.net/~zmajo/8059390/webrev.00/
>>
>> Testing:
>>
>> JPRT
>> Aurora Weblogic+medrec on solaris_x64, solaris_sparcv9 and linux_amd64.
>>
>> Thank you and best regards,
>>
>>
>> Zoltan
>>