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2025-10-28[ruby/json] Use Vector API in the Java ExtensionScott Myron
Overview This PR uses the [jdk.incubator.vector module](https://docs.oracle.com/en/java/javase/20/docs/api/jdk.incubator.vector/jdk/incubator/vector/package-summary.html) as mentioned in [issue #739](https://github.com/ruby/json/issues/739) to accelerate generating JSON with the same algorithm as the C extension. The PR as it exists right now, it will attempt to build the `json.ext.VectorizedEscapeScanner` class with a target release of `16`. This is the first version of Java with support for the `jdk.incubator.vector` module. The remaining code is built for Java 1.8. The code will attempt to load the `json.ext.VectorizedEscapeScanner` only if the `json.enableVectorizedEscapeScanner` system property is set to `true` (or `1`). I'm not entirely sure how this is packaged / included with JRuby so I'd love @byroot and @headius's (and others?) thought about how to potential package and/or structure the JARs. I did consider adding the `json.ext.VectorizedEscapeScanner` to a separate `generator-vectorized.jar` but I thought I'd solicit feedback before spending any more time on the build / package process. Benchmarks Machine M1 Macbook Air Note: I've had trouble modifying the `compare.rb` I was using for the C extension to work reliability with the Java extension. I'll probably spend more time trying to get it to work, but as of right now these are pretty raw benchmarks. Below are two sample runs of the real-world benchmarks. The benchmarks are much more variable then the C extension for some reason. I'm not sure if HotSpot is doing something slightly different per execution. Vector API Enabled ``` scott@Scotts-MacBook-Air json % ONLY=json JAVA_OPTS='--add-modules jdk.incubator.vector -Djson.enableVectorizedEscapeScanner=true' ruby -I"lib" benchmark/encoder-realworld.rb WARNING: Using incubator modules: jdk.incubator.vector == Encoding activitypub.json (52595 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 1.384k i/100ms Calculating ------------------------------------- json 15.289k (± 0.8%) i/s (65.41 μs/i) - 153.624k in 10.048481s == Encoding citm_catalog.json (500298 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 76.000 i/100ms Calculating ------------------------------------- json 753.787 (± 3.6%) i/s (1.33 ms/i) - 7.524k in 9.997059s == Encoding twitter.json (466906 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 173.000 i/100ms Calculating ------------------------------------- json 1.751k (± 1.1%) i/s (571.24 μs/i) - 17.646k in 10.081260s == Encoding ohai.json (20147 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 2.390k i/100ms Calculating ------------------------------------- json 23.829k (± 0.8%) i/s (41.97 μs/i) - 239.000k in 10.030503s ``` Vector API Disabled ``` scott@Scotts-MacBook-Air json % ONLY=json JAVA_OPTS='--add-modules jdk.incubator.vector -Djson.enableVectorizedEscapeScanner=false' ruby -I"lib" benchmark/encoder-realworld.rb WARNING: Using incubator modules: jdk.incubator.vector VectorizedEscapeScanner disabled. == Encoding activitypub.json (52595 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 1.204k i/100ms Calculating ------------------------------------- json 12.937k (± 1.1%) i/s (77.30 μs/i) - 130.032k in 10.052234s == Encoding citm_catalog.json (500298 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 80.000 i/100ms Calculating ------------------------------------- json 817.378 (± 1.0%) i/s (1.22 ms/i) - 8.240k in 10.082058s == Encoding twitter.json (466906 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 147.000 i/100ms Calculating ------------------------------------- json 1.499k (± 1.3%) i/s (667.08 μs/i) - 14.994k in 10.004181s == Encoding ohai.json (20147 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 2.269k i/100ms Calculating ------------------------------------- json 22.366k (± 5.7%) i/s (44.71 μs/i) - 224.631k in 10.097069s ``` `master` as of commit `https://github.com/ruby/json/commit/c5af1b68c582` ``` scott@Scotts-MacBook-Air json % ONLY=json ruby -I"lib" benchmark/encoder-realworld.rb == Encoding activitypub.json (52595 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 886.000 i/100ms Calculating ------------------------------------- json^C% scott@Scotts-MacBook-Air json % ONLY=json ruby -I"lib" benchmark/encoder-realworld.rb == Encoding activitypub.json (52595 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 1.031k i/100ms Calculating ------------------------------------- json 10.812k (± 1.3%) i/s (92.49 μs/i) - 108.255k in 10.014260s == Encoding citm_catalog.json (500298 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 82.000 i/100ms Calculating ------------------------------------- json 824.921 (± 1.0%) i/s (1.21 ms/i) - 8.282k in 10.040787s == Encoding twitter.json (466906 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 141.000 i/100ms Calculating ------------------------------------- json 1.421k (± 0.7%) i/s (703.85 μs/i) - 14.241k in 10.023979s == Encoding ohai.json (20147 bytes) jruby 9.4.12.0 (3.1.4) 2025-02-11 https://github.com/ruby/json/commit/f4ab75096a Java HotSpot(TM) 64-Bit Server VM 21.0.7+8-LTS-245 on 21.0.7+8-LTS-245 +jit [arm64-darwin] Warming up -------------------------------------- json 2.274k i/100ms Calculating ------------------------------------- json 22.612k (± 0.9%) i/s (44.22 μs/i) - 227.400k in 10.057516s ``` Observations `activitypub.json` and `twitter.json` seem to be consistently faster with the Vector API enabled. `citm_catalog.json` seems consistently a bit slower and `ohai.json` is fairly close to even. https://github.com/ruby/json/commit/d40b2703a8
2025-10-06[ruby/json] Fix sliced string escapingtompng
https://github.com/ruby/json/commit/d7baf015d9
2025-09-19[ruby/json] fix issue reading off the end of the ByteBuffer if ptr > 0Scott Myron
Fix: https://github.com/ruby/json/issues/859 https://github.com/ruby/json/commit/67ebabec75 Co-Authored-By: Jean Boussier <jean.boussier@gmail.com>
2025-09-11[ruby/json] Change invalid encoding test to use assert_raiseÉtienne Barrié
https://github.com/ruby/json/commit/efc61682ee Co-authored-by: Jean Boussier <jean.boussier@gmail.com>
2025-05-19[ruby/json] Update json_encoding_test.rbGrant Birkinbine
https://github.com/ruby/json/commit/0ac54a8161
2024-10-26Use frozen string literalsÉtienne Barrié
Co-authored-by: Jean Boussier <jean.boussier@gmail.com>
2024-10-26Use Encoding constants, String#bÉtienne Barrié
Co-authored-by: Jean Boussier <jean.boussier@gmail.com>
2023-12-05[flori/json] cosmeticsHiroshi SHIBATA
https://github.com/flori/json/commit/39d6c854a4
2023-12-05[flori/json] The modern Ruby uses utf-8 encodings by defaultHiroshi SHIBATA
https://github.com/flori/json/commit/11b31210ac
2023-09-05[flori/json] Removed code for Ruby 1.8Hiroshi SHIBATA
https://github.com/flori/json/commit/7f9c29038d
2023-08-25Use require_relative in JSON testsTakashi Kokubun
to prevent them from conflicting with yarp/test_helper
2017-04-12Use `assert_raise` instead of `assert_raises`.hsbt
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58324 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-04-12Merge json-2.0.4.hsbt
* https://github.com/flori/json/releases/tag/v2.0.4 * https://github.com/flori/json/blob/09fabeb03e73ed88dc8ce8f19d76ac59e51dae20/CHANGES.md#2017-03-23-204 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58323 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-07-13* test/lib/test/unit.rb: added test files with `_test` suffix for jsonhsbt
upstream. * test/json: merge original test files from json upstream. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55667 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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