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Go support for Google's protocol buffers
630 Commits 1 Branch 27 Tags 20 MiB
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Damien Neil 3e42b667d2 internal/impl: faster map fast path 
Avoid using protobuf reflection on map values in the fast path. Range
operations in particular are expensive in protoreflect, because the
closure passed to Map.Range escapes.

Iterate maps using a reflect.MapIter when available.

When operating on maps of messages where we have a *MessageInfo for the
message type, directly jump to the fast-path *MessageInfo methods rather
than passing through the proto package.

Benchmarks deltas for a google.protobuf.Struct with JSON represention:
  {"parameters":{"a":{"b":{"c":{"d":{"e":{"f":{"g":{}}}}}}}}}

Compared to previous revision:

  name                      old time/op  new time/op  delta
  NestedStruct/Size         7.22µs ± 2%  4.84µs ± 2%  -32.96%  (p=0.000 n=8+8)
  NestedStruct/Size-8       9.30µs ± 2%  5.89µs ± 2%  -36.60%  (p=0.000 n=8+8)
  NestedStruct/Marshal      77.6µs ±12%   9.8µs ± 4%  -87.33%  (p=0.000 n=8+8)
  NestedStruct/Marshal-8    91.6µs ± 2%  11.9µs ± 2%  -86.99%  (p=0.000 n=8+8)
  NestedStruct/Unmarshal    11.5µs ± 4%   8.7µs ± 2%  -24.76%  (p=0.000 n=8+8)
  NestedStruct/Unmarshal-8  15.4µs ± 4%  11.9µs ± 2%  -22.41%  (p=0.000 n=8+8)

Compared to github.com/golang/protobuf:

  name                      old time/op  new time/op  delta
  NestedStruct/Size         5.42µs ± 1%  4.84µs ± 2%  -10.61%  (p=0.000 n=8+8)
  NestedStruct/Size-8       6.34µs ± 2%  5.89µs ± 2%   -7.10%  (p=0.000 n=8+8)
  NestedStruct/Marshal      12.5µs ± 2%   9.8µs ± 4%  -21.41%  (p=0.000 n=7+8)
  NestedStruct/Marshal-8    14.1µs ± 3%  11.9µs ± 2%  -15.52%  (p=0.000 n=8+8)
  NestedStruct/Unmarshal    9.66µs ± 1%  8.65µs ± 2%  -10.40%  (p=0.000 n=7+8)
  NestedStruct/Unmarshal-8  11.7µs ± 3%  11.9µs ± 2%   +1.95%  (p=0.038 n=8+8)

Change-Id: I0effe6491f30d41f31904777f74eca3ac3694db3
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/211737
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
2019-12-17 22:14:17 +00:00
benchmarks benchmarks: move download_benchdata.bash into benchmarks/ dir 2019-07-09 22:36:27 +00:00
cmd cmd/protoc-gen-go: remove json ignore tags 2019-12-10 23:22:16 +00:00
compiler/protogen reflect/protoregistry: add (*Types).Register{Message,Enum,Extension} 2019-10-31 16:23:42 +00:00
encoding cmd/protoc-gen-go: fix Reset method 2019-10-17 17:10:14 +00:00
internal internal/impl: faster map fast path 2019-12-17 22:14:17 +00:00
proto proto: rearrange test messages 2019-12-16 21:49:56 +00:00
reflect reflect/protoreflect: add {Message,List,Map}.IsValid 2019-11-26 22:56:18 +00:00
runtime proto: reset message by default in Unmarshal 2019-09-17 21:13:42 +00:00
testing all: fix reflection behavior for empty lists and maps 2019-11-26 22:58:51 +00:00
types all: fix reflection behavior for empty lists and maps 2019-11-26 22:58:51 +00:00
.gitignore internal/fuzz: add basic fuzzing target for Marshal/Unmarshal 2019-10-11 16:00:11 +00:00
.travis.yml .travis.yml: configure for OSX 2019-03-13 18:04:08 +00:00
AUTHORS
CONTRIBUTING.md
CONTRIBUTORS
go.mod reflect/protoregistry: remove deprecated APIs 2019-11-08 01:03:52 +00:00
go.sum reflect/protoregistry: remove deprecated APIs 2019-11-08 01:03:52 +00:00
integration_test.go all: update to go1.13 release 2019-09-06 18:27:08 +00:00
LICENSE
PATENTS
README.md
regenerate.bash internal/cmd/generate-protos: generate test for testdata 2019-03-11 19:40:53 +00:00
release.bash release.bash: add support for building release binaries 2019-08-21 01:15:26 +00:00
test.bash test.bash: add -failfast flag 2019-08-05 21:48:09 +00:00

README.md

Next Generation Go Protocol Buffers

WARNING: This repository is in active development. There are no guarantees about API stability. Breaking changes will occur until a stable release is made and announced.

This repository is for the development of the next major Go implementation of protocol buffers. This library makes breaking API changes relative to the existing Go protobuf library. Of particular note, this API aims to make protobuf reflection a first-class feature of the API and implements the protobuf ecosystem in terms of reflection.

Design Documents

List of relevant design documents:

Contributing

We appreciate community contributions. See CONTRIBUTING.md.

Reporting Issues

Issues regarding the new API can be filed at github.com/golang/protobuf. Please use a APIv2: prefix in the title to make it clear that the issue is regarding the new API work.