RFR (XS) 8222818: NMT summary could show the GC in use

[Eric Caspole]

On 4/23/19 16:10, Aleksey Shipilev wrote:
> On 4/23/19 12:13 AM, Eric Caspole wrote:
>> JBS:
>> https://bugs.openjdk.java.net/browse/JDK-8222818
>>
>> webrev:
>> http://cr.openjdk.java.net/~ecaspole/JDK-8222818/02/webrev/
> 
>  From afar, It does not seem such a good idea to customize the NMT classes. Maybe the intent would be
> better catered by dumping the JVM arguments in the NMT summary? That would also help to further
> analyze the data, for example, correlate it with the number of compiler/GC threads, heap sizes,
> exotic options set, etc.

That would be more or less a JEP to standardize how to print all the 
diagnostic info in every place the VM prints any diagnostic info. 
Because we will never train the users to send enough data to actually 
diagnose their problem ;)

> 
> -Aleksey
>