[jdk8u-dev] RFR: 8313083: Print 'rss' and 'cache' as part of the container information [v2]

[Jonathan Dowland]

> Low risk, Oracle parity. Improves diagnostic output. Includes test modifications to cover the new diagnostics.
> 
> Included test `hotspot/test/runtime/containers/docker/TestMisc.java` passes for me.

Jonathan Dowland has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

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Changes:
  - all: https://git.openjdk.org/jdk8u-dev/pull/726/files
  - new: https://git.openjdk.org/jdk8u-dev/pull/726/files/0be5b9f2..0be5b9f2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=726&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=726&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/726.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/726/head:pull/726

PR: https://git.openjdk.org/jdk8u-dev/pull/726