RFR: 4926314: Optimize Reader.read(CharBuffer) [v6]
Philippe Marschall
github.com+471021+marschall at openjdk.java.net
Tue Feb 9 15:31:08 UTC 2021
> Implement three optimiztations for Reader.read(CharBuffer)
>
> * Add a code path for heap buffers in Reader#read to use the backing array instead of allocating a new one.
> * Change the code path for direct buffers in Reader#read to limit the intermediate allocation to `TRANSFER_BUFFER_SIZE`.
> * Implement `InputStreamReader#read(CharBuffer)` and delegate to `StreamDecoder`.
> * Implement `StreamDecoder#read(CharBuffer)` and avoid buffer allocation.
Philippe Marschall has updated the pull request incrementally with four additional commits since the last revision:
- Update copyright year
- Implement review comment
- Revert StreamDecoder changes
- Implement CharArrayReader#read(CharBuffer)
-------------
Changes:
- all: https://git.openjdk.java.net/jdk/pull/1915/files
- new: https://git.openjdk.java.net/jdk/pull/1915/files/a8531c1b..08948f93
Webrevs:
- full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1915&range=05
- incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1915&range=04-05
Stats: 105 lines in 3 files changed: 38 ins; 50 del; 17 mod
Patch: https://git.openjdk.java.net/jdk/pull/1915.diff
Fetch: git fetch https://git.openjdk.java.net/jdk pull/1915/head:pull/1915
PR: https://git.openjdk.java.net/jdk/pull/1915
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