Benchmarks vs jsonapi-rb? about fast_jsonapi HOT 13 CLOSED

Thanks for reaching out. We are putting together a longer writeup. Our benchmarks can be run very easily If you just run rspec you will see the results. More information about how the benchmarks are setup take a look at this file

https://github.com/Netflix/fast_jsonapi/blob/master/spec/lib/object_serializer_performance_spec.rb

We had a very specific goal in mind so we got the speed increase by sacrificing some flexibility, focusing just on JSON API and assuming homogenous lists.

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@shishirmk Thank you for sharing this and thinking about putting together a longer writeout. It would be great if you could add one or two sentences about why fast_jsonapi is faster than AMS. I am very interested in this sort of performance optimization, but I currently have no clue about where to start or what techniques to avoid in order to become/stay fast.

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benchmark against jsonapi-rb added in #52

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@NullVoxPopuli @shishirmk Here is the link to the performance doc. Hopefully it helps in answering your question.

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I did some benchmarking with script and results (Iterations per second) were,
Warming up --------------------------------------
jsonapi-rb 10.000 i/100ms
Calculating -------------------------------------
jsonapi-rb 111.401 (±20.6%) i/s - 1.580k in 15.058330s

Warming up --------------------------------------
fastjson-api 118.000 i/100ms
Calculating -------------------------------------
fastjson-api 1.270k (± 9.6%) i/s - 18.880k in 15.014813s

Can someone confirm these results ? Let me know if I am doing anything wrong here. Thanks.

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@amitsuryavanshi
Here is the benchmark i see on my laptop based on #52 by @minsikzzang

Serialize to Ruby Hash 1000 records
Serializer      Records    Time
AMS serializer  1000       376.51 ms
jsonapi-rb serializer 1000       42.34 ms
Fast serializer 1000       9.8 ms

Serialize to Ruby Hash 250 records
Serializer      Records    Time
AMS serializer  250        89.47 ms
jsonapi-rb serializer 250        8.54 ms
Fast serializer 250        2.09 ms

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I would expect fast_jsonapi to be faster than jsonapi-rb as it is more specialized, but a fair comparison would make jsonapi-rb use Oj as well for JSON serialization.

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@beauby I have some benchmarks here with different scenarios if you're curious: #81

Right now the biggest difference is relationship performance. (in favor of jsonapi-rb)
fast_jsonapi wins the most with flat lists of resources

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Switching all the serializers to FastJsonapi::MultiToJson.to_json:

Serialize to JSON string 10000 records
Serializer             Records    Time       Speed Up
Fast serializer        10000      144.85 ms
AMS serializer         10000      3413.27 ms 23.56x ✘
jsonapi-rb serializer  10000      406.75 ms  2.81x ✔
jsonapi-serializers    10000      356.9 ms   2.46x ✔

Serialize to Ruby Hash 10000 records
Serializer             Records    Time       Speed Up
Fast serializer        10000      115.26 ms
AMS serializer         10000      3358.11 ms 29.14x ✔
jsonapi-rb serializer  10000      399.27 ms  3.46x ✔
jsonapi-serializers    10000      303.01 ms  2.63x ✔

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@guilleiguaran do you have code for those benchmarks? they look fishy

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@NullVoxPopuli those are the benchmarks shipped with fast_jsonapi, see #96 for my changes.

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ah ok. cool. @guilleiguaran, there are more in-depth benchmarks here, if you want to play with those #81

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Released as a part of version 1.1.0

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