RFR: 8142366: Add develop_debug and develop_trace levels to Unified Logging

[Coleen Phillimore]

I think this looks good.   I added serviceability-dev to the mailing list.

Coleen

On 11/10/15 2:18 PM, Rachel Protacio wrote:
> Good point. I have changed Develop to DevelopInfo. I think it's better 
> to maintain the same levels of levels on the develop side so that the 
> logging can just shift laterally to non-product, as it were.
>
> And yes, they are specified as -Xlog:<tag>=develop_debug
>
> Updated webrev: http://cr.openjdk.java.net/~rprotacio/8142366.01/
> I re-tested with logging jtreg tests and ExecuteInternalVMTests test, 
> and for anyone who was curious (namely Max who had the good idea for 
> me to check), the debug levels do correctly "nest" with more verbose 
> ones printing out the less verbose and product mode logging as well.
>
> Thanks,
> Rachel
>
> On 11/9/2015 6:05 PM, Coleen Phillimore wrote:
>>
>> Hi Rachel,
>>
>> I sort of thought DevelopDebug would replace plain Develop, and 
>> DevelopTrace would be additional lower level.   Maybe plain Develop 
>> should be DevelopInfo then?
>>
>> Another question - how do you specify these levels?  Is it 
>> -Xlog:itables=develop_debug ?
>>
>> Thanks,
>> Coleen
>>
>> On 11/9/15 5:55 PM, Rachel Protacio wrote:
>>> Hello,
>>>
>>> Please see my small changeset to add two develop levels to UL.
>>>
>>> Summary: This adds develop (that is, non-product) logging levels to 
>>> the Unified Logging framework in order to support performance, 
>>> footprint, and usefulness-of-output considerations while maintaining 
>>> the ability for the user to specify levels of verbosity, i.e. 
>>> default, "debug," and "trace" levels.
>>> Open webrev: http://cr.openjdk.java.net/~rprotacio/8142366/
>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8142366
>>>
>>> I tested the added levels locally with sample log messages to ensure 
>>> proper functioning. When I convert future tags to logging with these 
>>> levels, those tags will have their own tests and inherently exercise 
>>> the added levels.
>>>
>>> Thank you,
>>> Rachel
>>
>