[jdk11u-dev] RFR: 8313083: Print 'rss' and 'cache' as part of the container information

[Jonathan Dowland]

I backport this for parity with 11.0.29-oracle.

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Commit messages:
 - Backport aeb2d2d0ce17da3aa7d49679beb4da2dd6f341ad

Changes: https://git.openjdk.org/jdk11u-dev/pull/3120/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=3120&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8313083
  Stats: 46 lines in 9 files changed: 45 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/3120.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/3120/head:pull/3120

PR: https://git.openjdk.org/jdk11u-dev/pull/3120