| Age | Commit message (Collapse) | Author |
|---|
|
Fix: https://github.com/ruby/json/issues/667
This is yet another behavior on which the various implementations
differed, but the C implementation used to call `to_json` on String
subclasses used as keys.
This was optimized out in e125072130229e54a651f7b11d7d5a782ae7fb65
but there is an Active Support test case for it, so it's best to
make all 3 implementation respect this behavior.
|
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Now that older rubies have been droped, we no longer need to check
for all that.
https://github.com/ruby/json/commit/35cf2b84e0
|
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If that assumption holds true, then we don't need to copy the
string into a buffer to unescape it. For small string is just saves
copying, but for large ones it also saves a malloc/free combo.
Before:
```
== Parsing twitter.json (567916 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json 52.000 i/100ms
oj 61.000 i/100ms
oj strict 70.000 i/100ms
Oj::Parser 71.000 i/100ms
rapidjson 55.000 i/100ms
Calculating -------------------------------------
json 510.111 (± 2.9%) i/s (1.96 ms/i) - 2.548k in 5.000029s
oj 610.232 (± 3.1%) i/s (1.64 ms/i) - 3.050k in 5.003725s
oj strict 713.231 (± 3.2%) i/s (1.40 ms/i) - 3.570k in 5.010902s
Oj::Parser 762.598 (± 3.0%) i/s (1.31 ms/i) - 3.834k in 5.033130s
rapidjson 553.029 (± 7.4%) i/s (1.81 ms/i) - 2.750k in 5.022630s
Comparison:
json: 510.1 i/s
Oj::Parser: 762.6 i/s - 1.49x faster
oj strict: 713.2 i/s - 1.40x faster
oj: 610.2 i/s - 1.20x faster
rapidjson: 553.0 i/s - same-ish: difference falls within error
== Parsing citm_catalog.json (1727030 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json 28.000 i/100ms
oj 33.000 i/100ms
oj strict 37.000 i/100ms
Oj::Parser 43.000 i/100ms
rapidjson 38.000 i/100ms
Calculating -------------------------------------
json 303.853 (± 3.6%) i/s (3.29 ms/i) - 1.540k in 5.076079s
oj 348.009 (± 2.0%) i/s (2.87 ms/i) - 1.749k in 5.027738s
oj strict 396.679 (± 3.3%) i/s (2.52 ms/i) - 1.998k in 5.042271s
Oj::Parser 406.699 (± 2.2%) i/s (2.46 ms/i) - 2.064k in 5.077587s
rapidjson 393.463 (± 3.3%) i/s (2.54 ms/i) - 1.976k in 5.028501s
Comparison:
json: 303.9 i/s
Oj::Parser: 406.7 i/s - 1.34x faster
oj strict: 396.7 i/s - 1.31x faster
rapidjson: 393.5 i/s - 1.29x faster
oj: 348.0 i/s - 1.15x faster
```
After:
```
== Parsing twitter.json (567916 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json 56.000 i/100ms
oj 62.000 i/100ms
oj strict 72.000 i/100ms
Oj::Parser 77.000 i/100ms
rapidjson 55.000 i/100ms
Calculating -------------------------------------
json 568.025 (± 2.1%) i/s (1.76 ms/i) - 2.856k in 5.030272s
oj 630.936 (± 1.4%) i/s (1.58 ms/i) - 3.162k in 5.012630s
oj strict 705.784 (±11.2%) i/s (1.42 ms/i) - 3.456k in 5.006706s
Oj::Parser 783.989 (± 1.7%) i/s (1.28 ms/i) - 3.927k in 5.010343s
rapidjson 557.630 (± 2.0%) i/s (1.79 ms/i) - 2.805k in 5.032388s
Comparison:
json: 568.0 i/s
Oj::Parser: 784.0 i/s - 1.38x faster
oj strict: 705.8 i/s - 1.24x faster
oj: 630.9 i/s - 1.11x faster
rapidjson: 557.6 i/s - same-ish: difference falls within error
== Parsing citm_catalog.json (1727030 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json 29.000 i/100ms
oj 33.000 i/100ms
oj strict 38.000 i/100ms
Oj::Parser 43.000 i/100ms
rapidjson 37.000 i/100ms
Calculating -------------------------------------
json 319.271 (± 3.1%) i/s (3.13 ms/i) - 1.595k in 5.001128s
oj 347.946 (± 1.7%) i/s (2.87 ms/i) - 1.749k in 5.028395s
oj strict 396.914 (± 3.0%) i/s (2.52 ms/i) - 2.014k in 5.079645s
Oj::Parser 409.311 (± 2.7%) i/s (2.44 ms/i) - 2.064k in 5.046626s
rapidjson 394.752 (± 1.5%) i/s (2.53 ms/i) - 1.998k in 5.062776s
Comparison:
json: 319.3 i/s
Oj::Parser: 409.3 i/s - 1.28x faster
oj strict: 396.9 i/s - 1.24x faster
rapidjson: 394.8 i/s - 1.24x faster
oj: 347.9 i/s - 1.09x faster
```
https://github.com/ruby/json/commit/7e0f66546a
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https://github.com/ruby/json/commit/7e557ee291
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* rb_str_conv_enc() returns the source string unmodified
if the conversion did not work. But we should be consistent with
the generator here and only accept BINARY or convertible to UTF-8.
https://github.com/ruby/json/commit/1344ad6f66
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Because of it's Ruby 1.8 heritage, the C extension doesn't care
much about strings encoding. We should get stricter over time.
https://github.com/ruby/json/commit/42402fc13f
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[Feature #19528]
Ref: https://bugs.ruby-lang.org/issues/19528
`load` is understood as the default method for serializer kind of libraries, and
the default options of `JSON.load` has caused many security vulnerabilities over the
years.
The plan is to do like YAML/Psych, deprecate these default options and direct
users toward using `JSON.unsafe_load` so at least it's obvious it should be
used against untrusted data.
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Fix: https://github.com/ruby/json/issues/655
For very small documents, the biggest performance gap with alternatives is
that the API impose that we allocate the `State` object. In a real world app
this doesn't make much of a difference, but when running in a micro-benchmark
this doubles the allocations, causing twice the amount of GC runs, making us
look bad.
However, unless we have to call a `to_json` method, the `State` object isn't
visible, so with some refactoring, we can elude that allocation entirely.
Instead we allocate the State internal struct on the stack, and if we need
to call a `to_json` method, we allocate the `State` and spill the struct on
the heap.
As a result, `JSON.generate` is now as fast as re-using a `State` instance,
as long as only primitives are generated.
Before:
```
== Encoding small mixed (34 bytes)
ruby 3.3.4 (2024-07-09 revision be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json (reuse) 598.654k i/100ms
json 400.542k i/100ms
oj 533.353k i/100ms
Calculating -------------------------------------
json (reuse) 6.371M (± 8.6%) i/s (156.96 ns/i) - 31.729M in 5.059195s
json 4.120M (± 6.6%) i/s (242.72 ns/i) - 20.828M in 5.090549s
oj 5.622M (± 6.4%) i/s (177.86 ns/i) - 28.268M in 5.061473s
Comparison:
json (reuse): 6371126.6 i/s
oj: 5622452.0 i/s - same-ish: difference falls within error
json: 4119991.1 i/s - 1.55x slower
== Encoding small nested array (121 bytes)
ruby 3.3.4 (2024-07-09 revision be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json (reuse) 248.125k i/100ms
json 215.255k i/100ms
oj 217.531k i/100ms
Calculating -------------------------------------
json (reuse) 2.628M (± 6.1%) i/s (380.55 ns/i) - 13.151M in 5.030281s
json 2.185M (± 6.7%) i/s (457.74 ns/i) - 10.978M in 5.057655s
oj 2.217M (± 6.7%) i/s (451.10 ns/i) - 11.094M in 5.044844s
Comparison:
json (reuse): 2627799.4 i/s
oj: 2216824.8 i/s - 1.19x slower
json: 2184669.5 i/s - 1.20x slower
== Encoding small hash (65 bytes)
ruby 3.3.4 (2024-07-09 revision be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json (reuse) 641.334k i/100ms
json 322.745k i/100ms
oj 642.450k i/100ms
Calculating -------------------------------------
json (reuse) 7.133M (± 6.5%) i/s (140.19 ns/i) - 35.915M in 5.068201s
json 4.615M (± 7.0%) i/s (216.70 ns/i) - 22.915M in 5.003718s
oj 6.912M (± 6.4%) i/s (144.68 ns/i) - 34.692M in 5.047690s
Comparison:
json (reuse): 7133123.3 i/s
oj: 6911977.1 i/s - same-ish: difference falls within error
json: 4614696.6 i/s - 1.55x slower
```
After:
```
== Encoding small mixed (34 bytes)
ruby 3.3.4 (2024-07-09 revision be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json (reuse) 572.751k i/100ms
json 457.741k i/100ms
oj 512.247k i/100ms
Calculating -------------------------------------
json (reuse) 6.324M (± 6.9%) i/s (158.12 ns/i) - 31.501M in 5.023093s
json 6.263M (± 6.9%) i/s (159.66 ns/i) - 31.126M in 5.017086s
oj 5.569M (± 6.6%) i/s (179.56 ns/i) - 27.661M in 5.003739s
Comparison:
json (reuse): 6324183.5 i/s
json: 6263204.9 i/s - same-ish: difference falls within error
oj: 5569049.2 i/s - same-ish: difference falls within error
== Encoding small nested array (121 bytes)
ruby 3.3.4 (2024-07-09 revision be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json (reuse) 258.505k i/100ms
json 242.335k i/100ms
oj 220.678k i/100ms
Calculating -------------------------------------
json (reuse) 2.589M (± 9.6%) i/s (386.17 ns/i) - 12.925M in 5.071853s
json 2.594M (± 6.6%) i/s (385.46 ns/i) - 13.086M in 5.083035s
oj 2.250M (± 2.3%) i/s (444.43 ns/i) - 11.255M in 5.004707s
Comparison:
json (reuse): 2589499.6 i/s
json: 2594321.0 i/s - same-ish: difference falls within error
oj: 2250064.0 i/s - 1.15x slower
== Encoding small hash (65 bytes)
ruby 3.3.4 (2024-07-09 revision be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json (reuse) 656.373k i/100ms
json 644.135k i/100ms
oj 650.283k i/100ms
Calculating -------------------------------------
json (reuse) 7.202M (± 7.1%) i/s (138.84 ns/i) - 36.101M in 5.051438s
json 7.278M (± 1.7%) i/s (137.40 ns/i) - 36.716M in 5.046300s
oj 7.036M (± 1.7%) i/s (142.12 ns/i) - 35.766M in 5.084729s
Comparison:
json (reuse): 7202447.9 i/s
json: 7277883.0 i/s - same-ish: difference falls within error
oj: 7036115.2 i/s - same-ish: difference falls within error
```
|
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While less nice, this open the door to eluding the State object
allocation when possible.
https://github.com/ruby/json/commit/5c0d428d4c
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Given we expect these to almost always be null, we might as
well keep them in RString.
And even when provided, assuming we're passed frozen strings
we'll save on copying them.
This also reduce the size of the struct from 112B to 72B.
https://github.com/ruby/json/commit/6382c231b0
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With the extra logic added for stack allocation, and especially the
memcpy, it became harder for compilers to inline.
This doesn't fully reclaim the speed lost with the stack allocation,
but it's getting closer.
Before:
```
== Encoding twitter.json (466906 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json 160.000 i/100ms
oj 225.000 i/100ms
Calculating -------------------------------------
json 1.577k (± 2.0%) i/s (634.20 μs/i) - 8.000k in 5.075561s
oj 2.264k (± 2.3%) i/s (441.79 μs/i) - 11.475k in 5.072205s
Comparison:
json: 1576.8 i/s
oj: 2263.5 i/s - 1.44x faster
== Encoding citm_catalog.json (500298 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json 101.000 i/100ms
oj 123.000 i/100ms
Calculating -------------------------------------
json 1.033k (± 2.6%) i/s (968.06 μs/i) - 5.252k in 5.087617s
oj 1.257k (± 2.2%) i/s (795.54 μs/i) - 6.396k in 5.090830s
Comparison:
json: 1033.0 i/s
oj: 1257.0 i/s - 1.22x faster
```
After:
```
== Encoding twitter.json (466906 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) [arm64-darwin23]
Warming up --------------------------------------
json 213.000 i/100ms
oj 230.000 i/100ms
Calculating -------------------------------------
json 2.064k (± 3.6%) i/s (484.44 μs/i) - 10.437k in 5.063685s
oj 2.246k (± 0.7%) i/s (445.19 μs/i) - 11.270k in 5.017541s
Comparison:
json: 2064.2 i/s
oj: 2246.2 i/s - 1.09x faster
== Encoding citm_catalog.json (500298 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) [arm64-darwin23]
Warming up --------------------------------------
json 133.000 i/100ms
oj 132.000 i/100ms
Calculating -------------------------------------
json 1.327k (± 1.7%) i/s (753.69 μs/i) - 6.650k in 5.013565s
oj 1.305k (± 2.2%) i/s (766.40 μs/i) - 6.600k in 5.061089s
Comparison:
json: 1326.8 i/s
oj: 1304.8 i/s - same-ish: difference falls within error
```
https://github.com/ruby/json/commit/89f816e868
|
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Ref: https://github.com/ruby/json/issues/655
Followup: https://github.com/ruby/json/issues/657
Assuming the generator might be used for fairly small documents
we can start with a reasonable buffer size of the stack, and if
we outgrow it, we can spill on the heap.
In a way this is optimizing for micro-benchmarks, but there are
valid use case for fiarly small JSON document in actual real world
scenarios, so trashing the GC less in such case make sense.
Before:
```
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
Oj 518.700k i/100ms
JSON reuse 483.370k i/100ms
Calculating -------------------------------------
Oj 5.722M (± 1.8%) i/s (174.76 ns/i) - 29.047M in 5.077823s
JSON reuse 5.278M (± 1.5%) i/s (189.46 ns/i) - 26.585M in 5.038172s
Comparison:
Oj: 5722283.8 i/s
JSON reuse: 5278061.7 i/s - 1.08x slower
```
After:
```
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
Oj 517.837k i/100ms
JSON reuse 548.871k i/100ms
Calculating -------------------------------------
Oj 5.693M (± 1.6%) i/s (175.65 ns/i) - 28.481M in 5.004056s
JSON reuse 5.855M (± 1.2%) i/s (170.80 ns/i) - 29.639M in 5.063004s
Comparison:
Oj: 5692985.6 i/s
JSON reuse: 5854857.9 i/s - 1.03x faster
```
https://github.com/ruby/json/commit/fe607f4806
|
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Fix: https://github.com/ruby/json/issues/460
The various `to_json` methods must rescue exceptions
to free the buffer.
```
require 'json'
data = 10_000.times.to_a << BasicObject.new
20.times do
100.times do
begin
data.to_json
rescue NoMethodError
end
end
puts `ps -o rss= -p #{$$}`
end
```
```
20128
24992
29920
34672
39600
44336
49136
53936
58816
63616
68416
73232
78032
82896
87696
92528
97408
102208
107008
111808
```
https://github.com/ruby/json/commit/d227d225ca
|
|
https://github.com/ruby/json/commit/f6d6ca3c17
|
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https://github.com/ruby/json/commit/d54063a790
|
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Ref: https://github.com/ruby/json/issues/655
The actual buffer is still on the heap, but this saves a pair
of malloc/free.
This helps a lot on micro-benchmarks
Before:
```
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
Oj 531.598k i/100ms
JSON reuse 417.666k i/100ms
Calculating -------------------------------------
Oj 5.735M (± 1.3%) i/s (174.35 ns/i) - 28.706M in 5.005900s
JSON reuse 4.604M (± 1.4%) i/s (217.18 ns/i) - 23.389M in 5.080779s
Comparison:
Oj: 5735475.6 i/s
JSON reuse: 4604380.3 i/s - 1.25x slower
```
After:
```
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
Oj 518.700k i/100ms
JSON reuse 483.370k i/100ms
Calculating -------------------------------------
Oj 5.722M (± 1.8%) i/s (174.76 ns/i) - 29.047M in 5.077823s
JSON reuse 5.278M (± 1.5%) i/s (189.46 ns/i) - 26.585M in 5.038172s
Comparison:
Oj: 5722283.8 i/s
JSON reuse: 5278061.7 i/s - 1.08x slower
```
Bench:
```ruby
require 'benchmark/ips'
require 'oj'
require 'json'
json_encoder = JSON::State.new(JSON.dump_default_options)
test_data = [1, "string", { a: 1, b: 2 }, [3, 4, 5]]
Oj.default_options = Oj.default_options.merge(mode: :compat)
Benchmark.ips do |x|
x.config(time: 5, warmup: 2)
x.report("Oj") do
Oj.dump(test_data)
end
x.report("JSON reuse") do
json_encoder.generate(test_data)
end
x.compare!(order: :baseline)
end
```
https://github.com/ruby/json/commit/72110f7992
|
|
Ref: https://github.com/ruby/json/issues/655
Rather than to write the number backward, and then reverse
the buffer, we can start from the back of the buffer and write
the number in the proper direction.
Before:
```
== Encoding integers (8009 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json 8.606k i/100ms
oj 9.598k i/100ms
Calculating -------------------------------------
json 86.059k (± 0.8%) i/s (11.62 μs/i) - 430.300k in 5.000416s
oj 97.409k (± 0.6%) i/s (10.27 μs/i) - 489.498k in 5.025360s
Comparison:
json: 86058.8 i/s
oj: 97408.8 i/s - 1.13x faster
```
After:
```
== Encoding integers (8009 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json (reuse) 9.500k i/100ms
json 9.359k i/100ms
oj 9.722k i/100ms
Calculating -------------------------------------
json (reuse) 96.270k (± 0.4%) i/s (10.39 μs/i) - 484.500k in 5.032777s
json 94.800k (± 2.2%) i/s (10.55 μs/i) - 477.309k in 5.037495s
oj 97.131k (± 0.7%) i/s (10.30 μs/i) - 486.100k in 5.004822s
Comparison:
json (reuse): 96270.1 i/s
oj: 97130.5 i/s - same-ish: difference falls within error
json: 94799.9 i/s - same-ish: difference falls within error
```
https://github.com/ruby/json/commit/0655b58d14
|
|
|
|
Prior to 2.7.3, `JSON::Ext::Parser` would only take kwargs.
So if json_pure 2.7.4 is loaded with `json <= 2.7.2` (or stdlib)
it blows up.
Ref: https://github.com/ruby/json/issues/650
Fix: https://github.com/ruby/json/issues/651
https://github.com/ruby/json/commit/4d9dc98817
|
|
Fix: https://github.com/ruby/json/issues/646
Since both `json` and `json_pure` expose the same files, if the
versions don't match, the native extension may be loaded with Ruby
code that don't match and is incompatible.
By doing the `require json/ext/generator/state` from C we ensure
we're at least loading that.
But this is a dirty workaround for the 2.7.x branch, we should
find a better way to fully isolate the two gems.
https://github.com/ruby/json/commit/dfdd4acf36
|
|
Ref: https://github.com/ruby/json/issues/647
Ref: https://github.com/rubygems/rubygems/pull/6490
Older rubygems are executing `extconf.rb` with a broken `$LOAD_PATH`
causing the `json` gem native extension to be loaded with the stdlib
version of the `.rb` files.
This fails with
```
json/common.rb:82:in `initialize': wrong number of arguments (given 1, expected 0) (ArgumentError)
```
Since this is just for `extconf.rb` we can probably just accept that
extra argument and ignore it.
The bug was fixed in rubygems 3.4.9 / 2023-03-20
https://github.com/ruby/json/commit/1f5e849fe0
|
|
https://github.com/ruby/json/commit/7f079b25be
|
|
https://github.com/ruby/json/commit/fb25e94aea
|
|
Fix: https://github.com/ruby/json/issues/437
Before:
```json
{
"foo": {
},
"bar": [
]
}
```
After:
```json
{
"foo": {},
"bar": []
}
```
|
|
|
|
https://github.com/ruby/json/commit/937c8d2e65
|
|
https://github.com/ruby/json/commit/7a3b482013
|
|
https://github.com/ruby/json/commit/a48be35825
|
|
|
|
This regressed since 2.7.2.
https://github.com/ruby/json/commit/35407d6635
|
|
* Otherwise the gem always uses the pure-Ruby backend
as it's missing that file and rescuing the LoadError.
https://github.com/ruby/json/commit/1e2809b0b0
|
|
Fix: https://github.com/ruby/json/pull/625
Declaring the buffer in a sub block cause bugs on some compilers.
https://github.com/ruby/json/commit/90967c9eb0
|
|
Co-authored-by: Jean Boussier <jean.boussier@gmail.com>
|
|
https://github.com/ruby/json/commit/b240bde402
Co-authored-by: Jean Boussier <jean.boussier@gmail.com>
|
|
https://github.com/ruby/json/commit/d4968d2e48
|
|
https://github.com/ruby/json/commit/42edaf7f17
|
|
Profiling revealed that we were spending lots of time growing the buffer.
Buffer operations is definitely something we want to optimize, but for
this specific benchmark what we're interested in is UTF-8 scanning performance.
Each iteration of the two scaning benchmark were producing 20MB of JSON,
now they only produce 5MB.
Now:
```
== Encoding mostly utf8 (5001001 bytes)
ruby 3.4.0dev (2024-10-18T19:01:45Z master https://github.com/ruby/json/commit/7be9a333ca) +YJIT +PRISM [arm64-darwin23]
Warming up --------------------------------------
json 35.000 i/100ms
oj 36.000 i/100ms
rapidjson 10.000 i/100ms
Calculating -------------------------------------
json 359.161 (± 1.4%) i/s (2.78 ms/i) - 1.820k in 5.068542s
oj 359.699 (± 0.6%) i/s (2.78 ms/i) - 1.800k in 5.004291s
rapidjson 99.687 (± 2.0%) i/s (10.03 ms/i) - 500.000 in 5.017321s
Comparison:
json: 359.2 i/s
oj: 359.7 i/s - same-ish: difference falls within error
rapidjson: 99.7 i/s - 3.60x slower
```
https://github.com/ruby/json/commit/1a338532d2
|
|
Since we're looking up the table anyway, we might as well store the
UTF-8 char length in it. For single byte characters that don't need
escaping we store `0`.
This helps on strings with lots of multi-byte characters:
Before:
```
== Encoding mostly utf8 (20004001 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json 6.000 i/100ms
oj 10.000 i/100ms
rapidjson 2.000 i/100ms
Calculating -------------------------------------
json 67.978 (± 1.5%) i/s (14.71 ms/i) - 342.000 in 5.033062s
oj 100.876 (± 2.0%) i/s (9.91 ms/i) - 510.000 in 5.058080s
rapidjson 26.389 (± 7.6%) i/s (37.89 ms/i) - 132.000 in 5.027681s
Comparison:
json: 68.0 i/s
oj: 100.9 i/s - 1.48x faster
rapidjson: 26.4 i/s - 2.58x slower
```
After:
```
== Encoding mostly utf8 (20004001 bytes)
ruby 3.3.4 (2024-07-09 revision https://github.com/ruby/json/commit/be1089c8ec) +YJIT [arm64-darwin23]
Warming up --------------------------------------
json 7.000 i/100ms
oj 10.000 i/100ms
rapidjson 2.000 i/100ms
Calculating -------------------------------------
json 75.187 (± 2.7%) i/s (13.30 ms/i) - 378.000 in 5.030111s
oj 95.196 (± 2.1%) i/s (10.50 ms/i) - 480.000 in 5.043565s
rapidjson 25.969 (± 3.9%) i/s (38.51 ms/i) - 130.000 in 5.011471s
Comparison:
json: 75.2 i/s
oj: 95.2 i/s - 1.27x faster
rapidjson: 26.0 i/s - 2.90x slower
```
https://github.com/ruby/json/commit/51e2631d1f
|
|
If we assume that even UTF-8 strings are mostly ASCII, we can implement a
fast path for the ASCII parts.
Before:
```
== Encoding mixed utf8 (20012001 bytes)
ruby 3.4.0dev (2024-10-18T15:12:54Z master https://github.com/ruby/json/commit/d1b5c10957) +YJIT +PRISM [arm64-darwin23]
Warming up --------------------------------------
json 5.000 i/100ms
oj 9.000 i/100ms
rapidjson 2.000 i/100ms
Calculating -------------------------------------
json 49.403 (± 2.0%) i/s (20.24 ms/i) - 250.000 in 5.062647s
oj 100.120 (± 2.0%) i/s (9.99 ms/i) - 504.000 in 5.035349s
rapidjson 26.404 (± 0.0%) i/s (37.87 ms/i) - 132.000 in 5.001025s
Comparison:
json: 49.4 i/s
oj: 100.1 i/s - 2.03x faster
rapidjson: 26.4 i/s - 1.87x slower
```
After:
```
== Encoding mixed utf8 (20012001 bytes)
ruby 3.4.0dev (2024-10-18T15:12:54Z master https://github.com/ruby/json/commit/d1b5c10957) +YJIT +PRISM [arm64-darwin23]
Warming up --------------------------------------
json 10.000 i/100ms
oj 9.000 i/100ms
rapidjson 2.000 i/100ms
Calculating -------------------------------------
json 95.686 (± 2.1%) i/s (10.45 ms/i) - 480.000 in 5.018575s
oj 96.875 (± 2.1%) i/s (10.32 ms/i) - 486.000 in 5.019097s
rapidjson 26.260 (± 3.8%) i/s (38.08 ms/i) - 132.000 in 5.033151s
Comparison:
json: 95.7 i/s
oj: 96.9 i/s - same-ish: difference falls within error
rapidjson: 26.3 i/s - 3.64x slower
```
https://github.com/ruby/json/commit/f8166c2d7f
|
|
Closes: https://github.com/ruby/json/pull/512
https://github.com/ruby/json/commit/d882a45d82
Co-Authored-By: lukeg <luke.gru@gmail.com>
|
|
Fix: https://github.com/ruby/json/issues/534
Only include up to 32 bytes of unparseable the source.
https://github.com/ruby/json/commit/f44995cfb6
|
|
https://github.com/ruby/json/commit/09e1df2643
|
|
https://github.com/ruby/json/commit/1a9af430d2
|
|
Avoid needless hash allocations and such that degrade performance
significantly on micro-benchmarks.
|
|
Fix: https://github.com/ruby/json/issues/419
|
|
https://github.com/ruby/json/commit/db9a489ca2
|
|
https://github.com/ruby/json/commit/e2e9936047
|
|
Extracted from: https://github.com/ruby/json/pull/512
Use `rb_hash_lookup2` to check for hash key existence instead
of going through `rb_funcall`.
https://github.com/ruby/json/commit/43835a0d13
Co-Authored-By: lukeg <luke.gru@gmail.com>
|
|
Some changes were missed in the automatic sync.
Notes:
Merged: https://github.com/ruby/ruby/pull/11911
|
|
Returning state->max_nesting is not valid because it's not a Ruby object.
https://github.com/ruby/json/commit/6679ceb
|
