RFR: 8153394: Add Unified Logging to make it easy to trace time taken in initPhase2

[Rachel Protacio]

Thank you, Harold!

Rachel


On 6/15/2016 10:21 AM, harold seigel wrote:
> Hi Rachel,
>
> The change looks good!
>
> Thanks, Harold
>
>
> On 6/14/2016 4:50 PM, Rachel Protacio wrote:
>> Hello!
>>
>> Please review this small change, adding unified logging for Phase2 
>> initialization, using the TraceTime class. (A jigsaw enhancement, 
>> which is why it's going in after FC.)
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8153394
>> Open webrev: http://cr.openjdk.java.net/~rprotacio/8153394.00/
>>
>> Output sample:
>>
>>    $ java -Xlog:startuptime+modules -version
>>    [0.410s][info][modules,startuptime] Phase2 initialization, 0.1302802
>>    secs
>>    java version "9-internal"
>>    Java(TM) SE Runtime Environment (fastdebug build
>>    9-internal+0-2016-06-09-092114.rprotaci.8153394)
>>    Java HotSpot(TM) 64-Bit Server VM (fastdebug build
>>    9-internal+0-2016-06-09-092114.rprotaci.8153394, mixed mode)
>>
>> Includes added conditions to logging/StartupTimeTest.java. Passes JPRT.
>>
>> Thanks,
>> Rachel
>