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Bridge performance: Using JSON-Strings is faster than WritableMap/WritableArray

See original GitHub issue

Coming from this issue: #8780

I’ve put together a benchmark calling the bridge and receiving various objects. It compares:

call and receive an object using WritableMap/WritableArray.
call and receive the same object by using the gson library to serialise it to a String, then deserialise it using JSON.parse.

The benchmark shows that using Json strings is faster than using WritableMap/WritableArray, especially with arrays.

Source: https://github.com/fab1an/react-native-test/tree/testArguments

Updated results after improvements

The results:

Simple Object: GSON is 3% faster

test_obj_simple_rn         x 493 ops/sec ±1.83% (133 runs sampled) 
test_obj_simple_json       x 507 ops/sec ±1.56% (135 runs sampled)

More complex, nested object: GSON is 51% faster

test_obj_complex_rn        x 270 ops/sec ±1.96% (134 runs sampled) 
test_obj_complex_json      x 408 ops/sec ±1.67% (134 runs sampled)

10-element array of integers: equal

test_array_num_small_rn         x 500 ops/sec ±1.54% (134 runs sampled) 
test_array_num_small_json       x 501 ops/sec ±1.84% (133 runs sampled)

1000-element array of integers: GSON is 64% faster

test_array_num_large_rn         x 76.41 ops/sec ±1.54% (135 runs sampled) 
test_array_num_large_json       x 125 ops/sec ±1.61% (133 runs sampled)

10-element array of strings: GSON is 5% faster

test_array_str_small_rn         x 469 ops/sec ±1.79% (133 runs sampled) 
test_array_str_small_json       x 490 ops/sec ±1.78% (133 runs sampled)

1000-element array of strings: GSON is 90% faster

test_array_str_large_rn         x 44.78 ops/sec ±2.03% (134 runs sampled) 
test_array_str_large_json       x 85.04 ops/sec ±1.40% (134 runs sampled)

Issue Analytics

State:
Created 7 years ago
Comments:21 (8 by maintainers)

Top GitHub Comments

7reactions

fab1ancommented, Dec 30, 2017

Closing this, because I don’t think it will ever get fixed. Have a nice good new year.

5reactions

fab1ancommented, Jul 22, 2017

@hramos That sounds like a good policy. Additionally I’d focus on open issues with developers who are willing to put time into producing additional info or working test-code like me. 😉

I’m a fan of RN as well.

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