go_serialization_benchmarks
decimal
go_serialization_benchmarks | decimal | |
---|---|---|
8 | 15 | |
1,527 | 5,925 | |
- | 1.6% | |
4.4 | 6.3 | |
12 days ago | 9 days ago | |
Go | Go | |
- | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
go_serialization_benchmarks
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Rob Pike: Gobs of data (2011)
Someone made a benchmark of serialization libraries in go [1], and I was surprised to see gobs is one of the slowest ones, specially for decoding. I suspect part of the reason is that the API doesn't not allow reusing decoders [2]. From my explorations it seems like both JSON [3], message-pack [4] and CBOR [5] are better alternatives.
By the way, in Go there are a like a million JSON encoders because a lot of things in the std library are not really coded for maximum performance but more for easy of usage, it seems. Perhaps this is the right balance for certain things (ex: the http library, see [6]).
There are also a bunch of libraries that allow you to modify a JSON file "in place", without having to fully deserialize into structs (ex: GJSON/SJSON [7] [8]). This sounds very convenient and more efficient that fully de/serializing if we just need to change the data a little.
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1: https://github.com/alecthomas/go_serialization_benchmarks
2: https://github.com/golang/go/issues/29766#issuecomment-45492...
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3: https://github.com/goccy/go-json
4: https://github.com/vmihailenco/msgpack
5: https://github.com/fxamacker/cbor
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6: https://github.com/valyala/fasthttp#faq
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7: https://github.com/tidwall/gjson
8: https://github.com/tidwall/sjson
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Introducing Tempo: low latency, cross-platform, end-to-end typesafe APIs
The bebop definition specifies fixed-width types inside a struct. The format of structs cannot be changed, but there are efficiency gains by omitting all of the indices and header data. It's useless as the root message, but it's small and fast for a benchmark.
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mus-go - the fastest Golang serializer today
Hey everyone! Let me introduce you to mus-go - the fastest Golang serializer today. If you look at benchmarks (https://github.com/alecthomas/go_serialization_benchmarks), you can see that it could be almost twice as fast as its closest "competitor":
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What is the fastest way to encode the arbitrary struct into bytes?
This might be of interest: https://github.com/alecthomas/go_serialization_benchmarks
- 80x improvements in caching by moving from JSON to gob
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gRPC Is Easy to Misconfigure
The protobuf vs msgpack benchmarks are not too bad. Msgpack performs very decently.
https://github.com/alecthomas/go_serialization_benchmarks
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Bebop encoding in Go
Maybe submit a PR against https://github.com/alecthomas/go_serialization_benchmarks? That covers a ton of serialization formats already, so adding your library would be cool and avoid wheel reinvention.
decimal
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Trouble understanding rounding when the next digit is after round precision is a #5?
Try it in JS with console.log(4.225 * 100);, you'll see the same unexpected result. Depending on your needs, it's actually fine to just be off by some amount. If it does really matter, then use an arbitrary precision library like https://github.com/shopspring/decimal to get the results you need.
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Handling currency values: facts and best practices
Most programming languages ( JavaScript, PHP, Go, Python, Java, C# ) have built-in support or 3rd-party libraries for handling this data type, even though the internal implementations can differ:
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Any go and python number experts here?
while working with money, dont use floats, use something like https://github.com/shopspring/decimal (go std lib doesnt have its own decimals yet)
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my first golang project!
Integers, or something like this: https://github.com/shopspring/decimal
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80x improvements in caching by moving from JSON to gob
I make heavy use of caching, and was caching both in-memory and in Redis using JSON to convert the data in to a string. The struct itself isn't super complicated, one level nested, and some fields use the shopspring/decimal library.
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Unexported interfaces usage question
I actually use this to represent monetary values btw :)
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How to round(2) float64?
Check out https://github.com/shopspring/decimal for doing money related calculations.
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Library recommendation -- money calculations, more accurate handling of floats
We personally use https://github.com/shopspring/decimal and it works well.
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What are your favorite packages to use?
decimal, one of the first Go library that created to work with decimal and monetary value.
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What libraries from other languages do you wish were ported over into go?
https://github.com/shopspring/decimal also.
What are some alternatives?
bebop - bebop wire format in Go
Golang Crypto Trading Bot - A golang implementation of a console-based trading bot for cryptocurrency exchanges
encoding - Go package containing implementations of efficient encoding, decoding, and validation APIs.
decimal - A high-performance, arbitrary-precision, floating-point decimal library.
bebop - 🎷No ceremony, just code. Blazing fast, typesafe binary serialization.
go-money - Go implementation of Fowler's Money pattern
msgpack - MessagePack is an extremely efficient object serialization library. It's like JSON, but very fast and small.
go-finance - :warning: Deprecrated in favor of https://github.com/piquette/finance-go
grpc-web - gRPC for Web Clients
Testify - A toolkit with common assertions and mocks that plays nicely with the standard library
msgp - A Go code generator for MessagePack / msgpack.org[Go]
apd - Arbitrary-precision decimals for Go