https://github.com/zerosnake0/goctx
Get your context value faster
https://github.com/zerosnake0/goctx
context golang
Last synced: about 1 month ago
JSON representation
Get your context value faster
- Host: GitHub
- URL: https://github.com/zerosnake0/goctx
- Owner: zerosnake0
- License: mit
- Created: 2020-11-14T14:16:09.000Z (over 5 years ago)
- Default Branch: main
- Last Pushed: 2020-11-24T14:42:11.000Z (over 5 years ago)
- Last Synced: 2025-05-11T22:39:03.089Z (10 months ago)
- Topics: context, golang
- Language: Go
- Homepage:
- Size: 10.7 KB
- Stars: 10
- Watchers: 1
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
[](https://goreportcard.com/report/github.com/zerosnake0/goctx)
[](https://pkg.go.dev/github.com/zerosnake0/goctx)
[](https://github.com/zerosnake0/goctx/actions?query=workflow%3ATest)
[](https://travis-ci.org/zerosnake0/goctx)
[](https://codecov.io/gh/zerosnake0/goctx)
[](https://github.com/pre-commit/pre-commit)
# goctx
Get your context value faster
## How to use
Replace
```go
v := ctx.Value(key)
```
With
```go
v := goctx.Value(ctx, key)
```
## Benchmark
There will be little difference when there is only 1~2 `context.WithXXX` calls
With 5 `context.WithXXX` calls
| | | |
| --- | --- | --- |
| BenchmarkValue/5/non_parallel/std-8 | 35313684 | 34.2 ns/op |
| BenchmarkValue/5/non_parallel/goctx-8 | 42801348 | 30.0 ns/op |
| BenchmarkValue/5/non_parallel/pure_map-8 | 16655377 | 72.8 ns/op |
| BenchmarkValue/5/parallel/std-8 | 168420460 | 7.09 ns/op |
| BenchmarkValue/5/parallel/goctx-8 | 185695462 | 6.35 ns/op |
| BenchmarkValue/5/parallel/pure_map-8 | 67944997 | 17.6 ns/op |
With 20 `context.WithXXX` calls
| | | |
| --- | --- | --- |
| BenchmarkValue/20/non_parallel/std-8 | 7137338 | 168 ns/op |
| BenchmarkValue/20/non_parallel/goctx-8 | 14623730 | 81.4 ns/op |
| BenchmarkValue/20/non_parallel/pure_map-8 | 5282458 | 235 ns/op |
| BenchmarkValue/20/parallel/std-8 | 42826857 | 27.9 ns/op |
| BenchmarkValue/20/parallel/goctx-8 | 79149823 | 15.1 ns/op |
| BenchmarkValue/20/parallel/pure_map-8 | 22206717 | 53.8 ns/op |
As we can see from the benchmark test, the map implementation is slower than the
standard one, so it is not recommended to use `RegisterValueFunc` to register a
context value function, unless you do not want to see nested stack with `Value` method
call (That's also the reason why `RegisterValueFunc` is kept even it is not fast)