Improve decoding speed #47
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@fxamacker Thanks. v2.0 is going to be faster than v1.5, so it makes sense to move this to v2.1. |
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fxamacker
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Feb 13, 2020
CBOR tag support includes:
- API to use TagSet to register user-defined Go type with CBOR tag number.
- API to encode Go value with CBOR tag number without registering.
- API to extract CBOR tag number with Tag or RawTag structs.
- API to use immutable TagSet or mutable shared TagSet (shared tag registry).
- EncOptions/DecOptions settings to tag or not tag time.Time values.
Improved decoding speed and memory for "keyasint" struct (COSE, CWT, etc.):
- speed is faster by 24% - 28%.
- mem allocs is reduced by 44% - 61%.
- mem bytes is reduced by 13% - 26%.
Encoding is a bit slower around 2% - 4% because of added features. Optimization
of encoding can be tackled in future releases because it is still very fast.
TagSet is a Go interface to register tag support for user-defined Go types.
EncMode and DecMode are reusable interfaces that are safe for concurrency.
They export codec functions with identical signatures to encoding/json.
EncMode can be created by these functions:
EncOptions{...}.EncMode()
EncOptions{...}.EncModeWithTags(TagSet)
EncOptions{...}.EncModeWithSharedTags(TagSet)
DecMode can be created by these functions:
DecOptions{...}.DecMode()
DecOptions{...}.DecModeWithTags(TagSet)
DecOptions{...}.DecModeWithSharedTags(TagSet)
Tag and RawTag are structs used to encode/decode CBOR tag number with tag content.
See docs for more details.
Closed: #44
Closed: #47
Closed: #125
Closed: #147
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fxamacker
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that referenced
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Feb 15, 2020
CBOR tag support includes:
- API to use TagSet to register user-defined Go type with CBOR tag number.
- API to encode Go value with CBOR tag number without registering.
- API to extract CBOR tag number with Tag or RawTag structs.
- API to use immutable TagSet or mutable shared TagSet (shared tag registry).
- EncOptions/DecOptions settings to tag or not tag time.Time values.
Improved decoding speed and memory for "keyasint" struct (COSE, CWT, etc.):
- speed is faster by 24% - 28%.
- mem allocs is reduced by 44% - 61%.
- mem bytes is reduced by 13% - 26%.
Encoding is a bit slower around 2% - 4% because of added features. Optimization
of encoding can be tackled in future releases because it is still very fast.
TagSet is a Go interface to register tag support for user-defined Go types.
EncMode and DecMode are reusable interfaces that are safe for concurrency.
They export codec functions with identical signatures to encoding/json.
EncMode can be created by these functions:
EncOptions{...}.EncMode()
EncOptions{...}.EncModeWithTags(TagSet)
EncOptions{...}.EncModeWithSharedTags(TagSet)
DecMode can be created by these functions:
DecOptions{...}.DecMode()
DecOptions{...}.DecModeWithTags(TagSet)
DecOptions{...}.DecModeWithSharedTags(TagSet)
Tag and RawTag are structs used to encode/decode CBOR tag number with tag content.
See docs and closed issues for more details.
Closed: #44
Closed: #47
Closed: #125
Closed: #147
Closed: #151
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Spotted several optimizations while working on milestone v1.3.1.
Speedups should be around 4% or 5% faster for COSE and CWT decoding depending on other changes in the same release.
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