RFR (XS) 8215221: Serial GC misreports young GC time

[Aleksey Shipilev]

On 1/24/19 4:37 PM, Aleksey Shipilev wrote:
> Okay, another attempt. This restructures the code a little bit, which IMO makes the flow more
> understandable. It also eliminates a few flags. Then, the placement for GCTraceTime becomes natural.
> Well, almost, because it requires some dance around should_do_full_collection, if we want to include
> young-only epilog into timing.
> 
> See:
>   http://cr.openjdk.java.net/~shade/8215221/webrev.02/
> 
> This passes hotspot_tier1 and my ad-hoc tests. If this is the way to go, I would do jdk-submit, etc.
> then.

The webrev above passes jdk-submit.

-Aleksey

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