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Bun 1.0の bun install の速さを調べる

Last updated at Posted at 2023-09-10

これなに

Bun 1.0が出たらしい。

Twitter(現X)情報だと、bun installがとにかく早いらしいので調べてみた。

対象はAWS CDKのリポジトリとする。

調べ方

Bunは公式記載の方法でインストールする。簡単。

curl -fsSL https://bun.sh/install | bash 

yarn intall

rm -rf node_modules/ && time yarn install
を5回実行する。

# 1回目
real    0m42.060s
user    0m28.544s
sys     0m27.346s

# 2回目
real    0m37.307s
user    0m27.554s
sys     0m24.019s

# 3回目
real    0m34.631s
user    0m26.526s
sys     0m25.207s

# 4回目
real    0m38.309s
user    0m27.107s
sys     0m24.790s

# 5回目
real    0m36.132s
user    0m26.972s
sys     0m23.865s

bun intall

rm -rf node_modules/ && time bun install
を5回実行する。

# 1回目
real    0m8.246s
user    0m0.195s
sys     0m6.060s

# 2回目
real    0m7.172s
user    0m0.198s
sys     0m6.036s

# 3回目
real    0m9.132s
user    0m0.217s
sys     0m7.234s

# 4回目
real    0m7.112s
user    0m0.179s
sys     0m5.813s

# 5回目
real    0m7.236s
user    0m0.262s
sys     0m5.917s

追記

パッケージinstallの後にlernaでビルドする部分があるが、bun installした場合はエラーが出てしまった点については触れておく。

# pre-build packages
npx lerna run build --scope=aws-cdk-lib --scope=@aws-cdk-testing/framework-integ --skip-nx-cache

リポジトリのこのへんを読む限りYarnに依存している部分があるのかも。この辺はノウハウ待ちか。

 >  Lerna (powered by Nx)   Running target build for 2 projects and 21 tasks they depend on
 
    →    Executing 1/19 remaining tasks...
 
    ⠧    @aws-cdk/yarn-cling:build
 
 
 
    ✖  @aws-cdk/yarn-cling:build
yarn run v1.22.19
$ tsc
       ../../../node_modules/@types/glob/index.d.ts(29,42): error TS2694: Namespace '"/workspace/aws-cdk/node_modules/minimatch/dist/cjs/index"' has no exported member 'IOptions'.
       ../../../node_modules/@types/glob/index.d.ts(74,30): error TS2724: '"/workspace/aws-cdk/node_modules/minimatch/dist/cjs/index"' has no exported member named 'IMinimatch'. Did you mean 'Minimatch'?
error Command failed with exit code 2.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
       
       

 ——————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————

 >  Lerna (powered by Nx)   Ran target build for 2 projects and 21 tasks they depend on (18s)
 
    ✔    4/5 succeeded [0 read from cache]
 
    ✖    1/5 targets failed, including the following:
         - @aws-cdk/yarn-cling:build

まとめ

うーん、早い。ざっくり4~5倍速い。安定したらbuild周りも調べて、良さそうならCIサーバなどの置き換えだけでもしたいところ。

こういう使い方もよさそう。

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