[jdk17u-dev] RFR: 8292698: Improve performance of DataInputStream

[Aleksey Shipilev]

Clean backport to improve `DataInputStream` performance in JDK 17u.

Benchmark from the changeset:


Benchmark                     Mode  Cnt   Score   Error  Units

#### x86_64

# Before
DataInputStreamTest.readChar  avgt   20  19.939 ? 0.120  us/op
DataInputStreamTest.readInt   avgt   20  20.538 ? 0.052  us/op

# After
DataInputStreamTest.readChar  avgt   20  10.497 ? 0.079  us/op
DataInputStreamTest.readInt   avgt   20   5.399 ? 0.073  us/op

### AArch64

# Before
DataInputStreamTest.readChar  avgt   20  21.600 ? 0.410  us/op
DataInputStreamTest.readInt   avgt   20  21.425 ? 0.545  us/op

# After
DataInputStreamTest.readChar  avgt   20  12.186 ? 0.366  us/op
DataInputStreamTest.readInt   avgt   20   6.207 ? 0.174  us/op


Additional testing:
 - [x] Benchmark added by RFE
 - [ ] Linux x86_64 fastdebug, `tier1 tier2 tier3`
 - [ ] Linux AArch64 fastdebug, `tier1 tier2 tier3`

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

Commit messages:
 - Backport 74a51ccc86525eb4b1eb2e5cb11e605ca9e9fc5d

Changes: https://git.openjdk.org/jdk17u-dev/pull/1390/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1390&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8292698
  Stats: 98 lines in 2 files changed: 71 ins; 14 del; 13 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1390.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1390/head:pull/1390

PR: https://git.openjdk.org/jdk17u-dev/pull/1390