RFR: 8297292: java/nio/channels/FileChannel/FileExtensionAndMap.java is too slow

Thu Feb 9 02:15:35 UTC 2023

Reduce the test’s disk space requirement by one third and the total number of files tested by half. With this change, the test was observed to still fail with a SIGBUS using JDK 11.0.15 on Linux 5.15.0-58. The test’s run time decreased by about two thirds: for one sample run from 29m56s to 10m13s in the CI on Linux-x64. A run with 50 repeats had no failures.

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Commit messages:
 - 8297292: java/nio/channels/FileChannel/FileExtensionAndMap.java is too slow

Changes: https://git.openjdk.org/jdk/pull/12479/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12479&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8297292
  Stats: 3 lines in 2 files changed: 0 ins; 1 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/12479.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12479/head:pull/12479

PR: https://git.openjdk.org/jdk/pull/12479