RFR: CODETOOLS-7902919: jcstress: Sysfs topology parser fails due to oddly intersecting core IDs [v2]

[Aleksey Shipilev]

> The sysfs parser is still incomplete: it tries to generate synthetic core IDs when they appear to belong to different packages. In doing so, it multiplies by the number of packages -- which is incorrect, and we should multiply at least by the max number of cores per package. We might as well multiply by the number of CPUs to be on the safe side.

Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:

  Cannot expect LinuxProcfs to always succeed on all build environments

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Changes:
  - all: https://git.openjdk.java.net/jcstress/pull/47/files
  - new: https://git.openjdk.java.net/jcstress/pull/47/files/257634b8..41a2e38a

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jcstress&pr=47&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jcstress&pr=47&range=00-01

  Stats: 6 lines in 1 file changed: 1 ins; 4 del; 1 mod
  Patch: https://git.openjdk.java.net/jcstress/pull/47.diff
  Fetch: git fetch https://git.openjdk.java.net/jcstress pull/47/head:pull/47

PR: https://git.openjdk.java.net/jcstress/pull/47