RFR: JDK-8269092: Add OldObjectSampleEvent.allocationSize field

[Erik Gahlin]

On Tue, 22 Jun 2021 08:32:56 GMT, Ludovic Henry <luhenry at openjdk.org> wrote:

> The data is already available in ObjectSample.allocated and getting this data
> in another way is complicated (via Instrumentation for example). Having the
> size of the objects also allows to augment the memory leak analysis based on
> the object size impact on top of based on the object count impact.

src/hotspot/share/jfr/metadata/metadata.xml line 630:

> 628:     startTime="false" cutoff="true">
> 629:     <Field type="Ticks" name="allocationTime" label="Allocation Time" />
> 630:     <Field type="ulong" contentType="bytes" name="allocationSize" label="Allocation Size" />

I wonder if the label should be "Object Size" instead?

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PR: https://git.openjdk.java.net/jdk/pull/4549