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simdjson/simdjson-java
Does it not support multithreading?

Hello, the project is very good. Recently, during testing with JMH, it was found that errors occur in multi-threaded environments. Does it currently not support multi-threaded concurrency?
  • wycst
  • 4
  • Opened 
    on Nov 27, 2024
  • #64

simdjson/simdjson-java
A trick solution to achieve multi-field parsing and get compression of structured data by efficient parsing performance

hello, piotrrzysko, In many business scenarios, parsing multi value from json only requires path array as parameters and get the string type value only one time, usage like hive s json_tuple udf, for example: ...
  • heykirby
  • 2
  • Opened 
    on Oct 4, 2024
  • #59

simdjson/simdjson-java
How much slower is this than the C++ version?

  • i-am-the-slime
  • 1
  • Opened 
    on Jun 26, 2024
  • #56

simdjson/simdjson-java
How to convert JsonValue to String

For DOM parser, how to convert JsonValue to byte array or string? For example: byte[] json = toUtf8( {\ a\ : {\ b\ : \ c\ }} ); JsonValue jsonValue = parser.parse(json, json.length); JsonValue res = jsonValue.get( ...
  • DenineLu
  • 1
  • Opened 
    on Jun 24, 2024
  • #55

simdjson/simdjson-java
selectFrom and rearrange (vectorized lookup tables) are going to be slow

When parsing strings with SIMD instructions, vectorized table lookup like vpshufb (x64) or vtbl (NEON) are critically important. They are very cheap (often run in 1 cycle) and very powerful. And indeed, ...
documentation
  • lemire
  • 2
  • Opened 
    on Jun 18, 2024
  • #54

simdjson/simdjson-java
The performance of DOM Parser and Schema-Based Parser.

I ve been testing the performance of Simdjson recently. The basic test is similar to default test, using twitter.json, as below: @Benchmark public int recordSimdjson() { Set String defaultUsers ...
  • ZhaiMo15
  • 17
  • Opened 
    on Jun 7, 2024
  • #52

simdjson/simdjson-java
Rules of schema-based parsing?

Here s an example: private final SimdJsonParser simdJsonParser = new SimdJsonParser(); record testClass(String name, long aaa, long bbb, long ccc) { } record testClass2(long aaa, long ...
  • ZhaiMo15
  • 2
  • Opened 
    on May 22, 2024
  • #50

simdjson/simdjson-java
Parsing into Map

Introduction Sometimes users want to parse a JSON object into a map. Let s assume that we have the following example object: { intKey : 123, objKey : { key1 : abc , key2 : false ...
  • piotrrzysko
  • 3
  • Opened 
    on May 18, 2024
  • #49

simdjson/simdjson-java
simdjson is much slower than jackson

I make a peformance test between simdjson and jackson, the result is simdjson slower much than jackson. why? the result: SimdJson deserialize run 100000 cost 80532ms; Jackson deserialize run 100000 cost ...
  • z00407087
  • 3
  • Opened 
    on May 13, 2024
  • #48

simdjson/simdjson-java
Further discussion of schema-based parsing.

Good to know that the schema-based parsing were implemented! I have two more questions: 1. As line 54 in src/main/java/org/simdjson/SchemaBasedJsonIterator.java says: Lists at the root are not supported. ...
  • ZhaiMo15
  • 2
  • Opened 
    on May 11, 2024
  • #47
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