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

[Aleksey Shipilev]

Friendly reminder.

On 12/11/18 9:23 PM, Aleksey Shipilev wrote:
> Bug:
>   https://bugs.openjdk.java.net/browse/JDK-8215221
> 
> One of our guys pointed out the oddity in Serial GC logs: "Pause Young" includes the timing for Full
> collection, and wrecks up GCId order as well. This is because GCTraceTime-s are nested on those
> paths, and putting them in proper order, closer to collect_generation, fixes it.
> 
> The downside is that some of the cleanup actions are now outside the GCTraceTime. Those look
> innocuous to omit to me, though.
> 
> Fix:
>   http://cr.openjdk.java.net/~shade/8215221/webrev.01/
> 
> Testing: hotspot tier1, eyeballing GC logs, jdk-submit (running)
> 
> Thanks,
> -Aleksey
> 


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