> On 9 Oct 2019, at 14:29, Sven Van Caekenberghe <s...@stfx.eu> wrote:
>
> The size/speed/efficiency differences are minor for typical JSON payloads,
> especially compared with compacted JSON. The implementation is simpler,
> though, as there is no string escaping and no number parsing.
>
> UBJSON is making a larger difference when dealing with arrays containing
> numbers. Especially with ByteArrays, UBJSON makes a huge difference, since
> these are essentially stored natively.
Here are some details/benchmarks.
1. A typical JSON payload
data := ZnConstants httpStatusCodes associations
collect: [ :each | { #code->each key. #reason->each value }
asDictionary ].
[ NeoUBJSONWriter toByteArray: data ] bench. "'11108.114 per second'"
bytes := NeoUBJSONWriter toByteArray: data.
bytes size. "2290"
[ NeoUBJSONReader fromByteArray: bytes ] bench. "'4412.670 per second'"
[ NeoJSONWriter toString: data ] bench. "'11542.783 per second'"
json := NeoJSONWriter toString: data.
json size. "2358"
[ NeoJSONReader fromString: json ] bench. "'4814.711 per second'"
2. A 1K integer array
data := (1 to: 1024) asArray.
[ NeoUBJSONWriter toByteArray: data ] bench. "'6945.444 per second'"
bytes := NeoUBJSONWriter toByteArray: data.
bytes size. "2822"
[ NeoUBJSONReader fromByteArray: bytes ] bench. "'3280.632 per second'"
[ NeoJSONWriter toString: data ] bench. "'4523.095 per second'"
json := NeoJSONWriter toString: data.
json size. "4014"
[ NeoJSONReader fromString: json ] bench. "'1253.749 per second'"
3. A 1K byte array
data := ByteArray new: 1024 streamContents: [ :out |
1024 timesRepeat: [ out nextPut: 256 atRandom - 1 ] ].
[ NeoUBJSONWriter toByteArray: data ] bench. "'538493.501 per second'"
bytes := NeoUBJSONWriter toByteArray: data.
bytes size. "1031"
[ NeoUBJSONReader fromByteArray: bytes ] bench. "'216269.200 per second'"
[ NeoJSONWriter toString: data ] bench. "'4579.084 per second'"
json := NeoJSONWriter toString: data.
json size. "3686"
[ NeoJSONReader fromString: json ] bench. "'1297.362 per second'"
Right now, only ByteArray got a highly optimised implementation. In the future,
FloatArray and IntegerArray could receive the same treatment.
Sven
PS:
Note that UBJSON is not the same as BSON, nor CBOR, nor MessagePack, which all
exist in the same space.
