RFR: CODETOOLS-7902947: jcstress: Skip affinity initialization when non-local affinity mode is requested

[Aleksey Shipilev]

Currently, we eagerly initialize affinity support in ForkedMain, even when local affinity mode is not enabled. This eats precious time that we spend on doing unnecessary work.

-------------

Commit messages:
 - CODETOOLS-7902947: jcstress: Skip affinity initialization when non-local affinity mode is requested

Changes: https://git.openjdk.java.net/jcstress/pull/55/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jcstress&pr=55&range=00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7902947
  Stats: 59 lines in 5 files changed: 39 ins; 10 del; 10 mod
  Patch: https://git.openjdk.java.net/jcstress/pull/55.diff
  Fetch: git fetch https://git.openjdk.java.net/jcstress pull/55/head:pull/55

PR: https://git.openjdk.java.net/jcstress/pull/55