CRR (S/M): 7049999: G1: Make the G1PrintHeapRegions output consistent and complete

[Tony Printezis]

Hi all,

Is anyone looking at this? Any chance of getting it reviewed soon-sh so 
that I can push it by tomorrow?

Tony

On 06/21/2011 03:34 PM, Tony Printezis wrote:
> Hi,
>
> Could I get a couple of folks to look at this?
>
> http://cr.openjdk.java.net/~tonyp/7049999/webrev.0/
>
> +G1PrintHeapRegions is a very helpful debugging feature that we have 
> used a lot in the past. It'll be very helpful in the long run to 
> ensure that it generates more complete output to save us having to 
> deduce some of it. What was missing in the past was:
>
> * output for humongous region allocations
> * output per region post compaction (as compaction changes the shape 
> of the heap)
> * output when regions are reclaimed during cleanup
>
> Further enhancements include:
>
> * commit / uncommit events
> * trimmed the output to keep the generated log files smaller while not 
> losing any information
> * introduced the G1HRPrinter class and all output goes through it to 
> ensure consistency
>
> I attached an example of the new output.
>
> Tony
>