RFR: CODETOOLS-7902974: jcstress: Footprint estimator should balance both stride count and stride size [v2]

[Aleksey Shipilev]

> Current "arrays.large" are failing with OOM because estimator only balances the stride count, while leaving stride size at 256. This is a recent regression.

Aleksey Shipilev 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. The pull request contains three additional commits since the last revision:

 - Merge branch 'master' into fix-estimator
 - Use a single loop for estimator
 - CODETOOLS-7902974: jcstress: Footprint estimator should balance both stride count and stride size

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Changes:
  - all: https://git.openjdk.java.net/jcstress/pull/77/files
  - new: https://git.openjdk.java.net/jcstress/pull/77/files/f025e277..f23b55ad

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jcstress&pr=77&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jcstress&pr=77&range=00-01

  Stats: 52 lines in 3 files changed: 13 ins; 30 del; 9 mod
  Patch: https://git.openjdk.java.net/jcstress/pull/77.diff
  Fetch: git fetch https://git.openjdk.java.net/jcstress pull/77/head:pull/77

PR: https://git.openjdk.java.net/jcstress/pull/77