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Cuong Manh Le 3e6c4a6c79
types: make chopPrecisionAndTruncate always non-mutative (#9250) 
Currently, chopPrecisionAndTruncate/chopPrecisionAndTruncateNonMutative
are doing the same thing, except that the former do it mutatively.

Looking at the usages of chopPrecisionAndTruncate, the callers must
alloc a new big.Int before calling it anyway, so any mutation will be
done with this new allocated big.Int, instead of input argument.

So, by making chopPrecisionAndTruncate always non-mutative, we simplify
the code, and make the code faster, less allocation in some benchmarks.

Benchmark for github.com/cosmos/cosmos-sdk/types:

name                                           old time/op    new time/op    delta
CoinsAdditionIntersect/sizes:_A_1,_B_1-8         35.4ns ± 0%    35.1ns ± 0%  -0.92%  (p=0.008 n=5+5)
CoinsAdditionIntersect/sizes:_A_5,_B_5-8          366ns ± 1%     363ns ± 1%    ~     (p=0.056 n=5+5)
CoinsAdditionIntersect/sizes:_A_5,_B_20-8         557ns ± 0%     553ns ± 0%  -0.64%  (p=0.008 n=5+5)
CoinsAdditionIntersect/sizes:_A_1,_B_1000-8      6.17µs ± 0%    6.18µs ± 0%    ~     (p=0.151 n=5+5)
CoinsAdditionIntersect/sizes:_A_2,_B_1000-8      6.30µs ± 0%    6.32µs ± 0%  +0.23%  (p=0.008 n=5+5)
CoinsAdditionNoIntersect/sizes:_A_1,_B_1-8       30.2ns ± 0%    29.9ns ± 1%  -0.98%  (p=0.008 n=5+5)
CoinsAdditionNoIntersect/sizes:_A_5,_B_5-8        226ns ± 0%     224ns ± 0%  -0.54%  (p=0.008 n=5+5)
CoinsAdditionNoIntersect/sizes:_A_5,_B_20-8       373ns ± 0%     372ns ± 0%  -0.26%  (p=0.040 n=5+5)
CoinsAdditionNoIntersect/sizes:_A_1,_B_1000-8    6.21µs ± 0%    6.22µs ± 0%    ~     (p=0.421 n=5+5)
CoinsAdditionNoIntersect/sizes:_A_2,_B_1000-8    6.22µs ± 0%    6.23µs ± 0%    ~     (p=0.286 n=5+5)
CoinsAdditionNoIntersect/sizes:_A_1000,_B_2-8    6.22µs ± 0%    6.23µs ± 0%    ~     (p=0.143 n=5+5)
ParseCoin-8                                      5.46µs ± 0%    5.39µs ± 0%  -1.26%  (p=0.008 n=5+5)
UintMarshal-8                                    1.01µs ± 0%    1.00µs ± 0%  -1.10%  (p=0.008 n=5+5)
IntMarshal-8                                      764ns ± 0%     758ns ± 1%  -0.79%  (p=0.024 n=5+5)
MarshalTo-8                                       192ns ± 0%     190ns ± 0%  -1.03%  (p=0.008 n=5+5)

name                                           old alloc/op   new alloc/op   delta
CoinsAdditionIntersect/sizes:_A_1,_B_1-8          32.0B ± 0%     32.0B ± 0%    ~     (all equal)
CoinsAdditionIntersect/sizes:_A_5,_B_5-8           520B ± 0%      520B ± 0%    ~     (all equal)
CoinsAdditionIntersect/sizes:_A_5,_B_20-8        1.38kB ± 0%    1.38kB ± 0%    ~     (all equal)
CoinsAdditionIntersect/sizes:_A_1,_B_1000-8      49.2kB ± 0%    49.2kB ± 0%    ~     (all equal)
CoinsAdditionIntersect/sizes:_A_2,_B_1000-8      49.3kB ± 0%    49.3kB ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_1,_B_1-8        24.0B ± 0%     24.0B ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_5,_B_5-8         488B ± 0%      488B ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_5,_B_20-8      1.35kB ± 0%    1.35kB ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_1,_B_1000-8    49.2kB ± 0%    49.2kB ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_2,_B_1000-8    49.2kB ± 0%    49.2kB ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_1000,_B_2-8    49.2kB ± 0%    49.2kB ± 0%    ~     (all equal)
ParseCoin-8                                      2.21kB ± 0%    2.21kB ± 0%    ~     (all equal)
UintMarshal-8                                      392B ± 0%      392B ± 0%    ~     (all equal)
IntMarshal-8                                       168B ± 0%      168B ± 0%    ~     (all equal)
MarshalTo-8                                       80.0B ± 0%     80.0B ± 0%    ~     (all equal)

name                                           old allocs/op  new allocs/op  delta
CoinsAdditionIntersect/sizes:_A_1,_B_1-8           1.00 ± 0%      1.00 ± 0%    ~     (all equal)
CoinsAdditionIntersect/sizes:_A_5,_B_5-8           12.0 ± 0%      12.0 ± 0%    ~     (all equal)
CoinsAdditionIntersect/sizes:_A_5,_B_20-8          14.0 ± 0%      14.0 ± 0%    ~     (all equal)
CoinsAdditionIntersect/sizes:_A_1,_B_1000-8        3.00 ± 0%      3.00 ± 0%    ~     (all equal)
CoinsAdditionIntersect/sizes:_A_2,_B_1000-8        6.00 ± 0%      6.00 ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_1,_B_1-8         1.00 ± 0%      1.00 ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_5,_B_5-8         5.00 ± 0%      5.00 ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_5,_B_20-8        6.00 ± 0%      6.00 ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_1,_B_1000-8      3.00 ± 0%      3.00 ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_2,_B_1000-8      4.00 ± 0%      4.00 ± 0%    ~     (all equal)
CoinsAdditionNoIntersect/sizes:_A_1000,_B_2-8      3.00 ± 0%      3.00 ± 0%    ~     (all equal)
ParseCoin-8                                        71.0 ± 0%      71.0 ± 0%    ~     (all equal)
UintMarshal-8                                      25.0 ± 0%      25.0 ± 0%    ~     (all equal)
IntMarshal-8                                       18.0 ± 0%      18.0 ± 0%    ~     (all equal)
MarshalTo-8                                        2.00 ± 0%      2.00 ± 0%    ~     (all equal)

name                                           old speed      new speed      delta
UintMarshal-8                                  6.91MB/s ± 0%  6.99MB/s ± 0%  +1.04%  (p=0.008 n=5+5)
IntMarshal-8                                   9.16MB/s ± 0%  9.23MB/s ± 1%  +0.83%  (p=0.032 n=5+5)

Benchmark for github.com/cosmos/cosmos-sdk/x/mint/types:

name              old time/op    new time/op    delta
BlockProvision-8     263ns ± 0%     257ns ± 0%   -2.23%  (p=0.008 n=5+5)

name              old alloc/op   new alloc/op   delta
BlockProvision-8      112B ± 0%      104B ± 0%   -7.14%  (p=0.008 n=5+5)

name              old allocs/op  new allocs/op  delta
BlockProvision-8      6.00 ± 0%      5.00 ± 0%  -16.67%  (p=0.008 n=5+5)

Fixes #9249

Co-authored-by: Emmanuel T Odeke <emmanuel@orijtech.com>
2021-05-04 00:32:15 +01:00
.github Add labeler action (#9204) 2021-04-27 14:52:19 -04:00
baseapp Remove ServiceMsgs from ADR-031 (#9139) 2021-04-30 11:00:47 +00:00
client Rename clientCtx.JSONMarshaler to JSONCodec (#9251) 2021-05-03 14:45:47 +00:00
codec Rename clientCtx.JSONMarshaler to JSONCodec (#9251) 2021-05-03 14:45:47 +00:00
contrib Remove ServiceMsgs from ADR-031 (#9139) 2021-04-30 11:00:47 +00:00
cosmovisor codec: Rename codec and marshaler interfaces (#9226) 2021-04-29 10:46:22 +00:00
crypto crypto/types: optimize compact bit array one count (#9216) 2021-04-30 21:08:14 +00:00
docs Rename clientCtx.JSONMarshaler to JSONCodec (#9251) 2021-05-03 14:45:47 +00:00
internal/conv internal/conv: fix wrong string to bytes implementation (#9141) 2021-04-19 14:51:05 +01:00
proto/cosmos x/feegrant API Audit changes (#9194) 2021-05-03 12:34:48 +00:00
scripts scripts: indent multiline commands (#8706) 2021-02-25 20:57:41 +00:00
server Rename clientCtx.JSONMarshaler to JSONCodec (#9251) 2021-05-03 14:45:47 +00:00
simapp Rename clientCtx.JSONMarshaler to JSONCodec (#9251) 2021-05-03 14:45:47 +00:00
snapshots snapshots: document use of ioutil.TempDir() (#8508) 2021-02-04 09:54:01 +00:00
std Add ADR 031 BaseApp and codec infrastructure (#7519) 2020-10-15 13:07:59 +00:00
store store/internal: validate keys before calling ProofsFromMap (#9235) 2021-05-02 15:53:59 -07:00
telemetry Minor Code Cleanup - gRPC queries (#6862) 2020-07-28 12:53:35 +00:00
tests codec: Rename codec and marshaler interfaces (#9226) 2021-04-29 10:46:22 +00:00
testutil Rename clientCtx.JSONMarshaler to JSONCodec (#9251) 2021-05-03 14:45:47 +00:00
third_party/proto Any: update and test String method (#8854) 2021-03-12 12:24:07 +00:00
types types: make chopPrecisionAndTruncate always non-mutative (#9250) 2021-05-04 00:32:15 +01:00
version Set proper default command output (#8628) 2021-04-17 00:21:32 +00:00
x docs: x/distribution spec (#8928) 2021-05-03 18:40:34 +00:00
.build.sh fix library file path (#8301) 2021-01-12 10:08:42 +00:00
.clang-format Fix clang-format to specific version (#7350) 2020-10-27 10:04:34 +00:00
.codecov.yml CI: Fix codecov flag project config (#7994) 2020-11-20 09:13:25 -05:00
.deepsource.toml chore: refactor code quality issues (#8932) 2021-03-22 09:30:27 +00:00
.dockerignore Add basic Dockerfile to build all binaries and export gaiad 2018-04-10 12:39:47 +02:00
.gitattributes Merge PR #6426: Migrate API Server 2020-06-15 13:39:09 -04:00
.gitignore All Makefile proto commands use Docker (#7931) 2020-11-13 16:36:58 +00:00
.golangci.yml build(deps): bump github.com/otiai10/copy from 1.5.0 to 1.5.1 (#9077) 2021-04-09 14:09:25 +00:00
.goreleaser.yml ci: automate release post tag push (#6230) 2020-05-25 20:02:08 +02:00
.mergify.yml Update mergify (#8784) 2021-03-05 12:45:18 +00:00
buf.yaml x/upgrade: remove support for time based upgrades (#8849) 2021-03-14 01:03:01 +00:00
CHANGELOG.md Rename clientCtx.JSONMarshaler to JSONCodec (#9251) 2021-05-03 14:45:47 +00:00
CODE_OF_CONDUCT.md Update CODE_OF_CONDUCT.md (#7381) 2020-09-28 11:28:30 +02:00
CONTRIBUTING.md update contributor docs (#9190) 2021-04-28 13:02:52 +00:00
docker-compose.yml buildsystem: simplify Makefile and ci automation (#7189) 2020-08-31 15:39:05 +02:00
Dockerfile remove plantuml install in docker (#9059) 2021-04-06 19:04:00 +00:00
go.mod build(deps): bump github.com/prometheus/common from 0.21.0 to 0.23.0 (#9213) 2021-04-29 13:00:16 +00:00
go.sum build(deps): bump github.com/prometheus/common from 0.21.0 to 0.23.0 (#9213) 2021-04-29 13:00:16 +00:00
LICENSE Add README.md to Basecoin; Update licenses 2018-01-28 18:17:19 -08:00
Makefile setup: reuses proto container (#9192) 2021-04-26 11:15:46 +00:00
README.md Remove IBC from the SDK (#8735) 2021-03-04 13:11:34 +00:00
SECURITY.md Adding disclosure process to security.md (#9086) 2021-04-13 07:21:51 +00:00
STABLE_RELEASES.md Stable Releases: Definition and Process (#6394) 2020-07-14 10:28:53 +02:00

README.md

Cosmos SDK

banner

The Cosmos-SDK is a framework for building blockchain applications in Golang. It is being used to build Gaia, the first implementation of the Cosmos Hub.

WARNING: The SDK has mostly stabilized, but we are still making some breaking changes.

Note: Requires Go 1.15+

Quick Start

To learn how the SDK works from a high-level perspective, go to the SDK Intro.

If you want to get started quickly and learn how to build on top of the SDK, please follow the SDK Application Tutorial. You can also fork the tutorial's repository to get started building your own Cosmos SDK application.

For more, please go to the Cosmos SDK Docs.

Cosmos Hub Mainnet

The Cosmos Hub application, gaia, has moved to its own repository. Go there to join the Cosmos Hub mainnet and more.

Interblockchain Communication (IBC)

The IBC module for the SDK has moved to its own repository. Go there to build and integrate with the IBC module.

Starport

If you are starting a new app or a new module you can use Starport to help you get started and speed up development. If you have any questions or find a bug, feel free to open an issue in the repo.

Disambiguation

This Cosmos-SDK project is not related to the React-Cosmos project (yet). Many thanks to Evan Coury and Ovidiu (@skidding) for this Github organization name. As per our agreement, this disambiguation notice will stay here.