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bufioを使う about gtree HOT 6 CLOSED

ddddddO avatar ddddddO commented on June 12, 2024
bufioを使う

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ddddddO avatar ddddddO commented on June 12, 2024
# Description
├── Output tree from markdown or programmatically.
│   ├── Output format is tree or yaml or toml or json.
│   └── Default tree.
├── Make directories from markdown or programmatically.
│   ├── It is possible to dry run.
│   └── You can use `-e` flag to make specified extensions as file.
├── Output a markdown template that can be used with either `output` subcommand or `mkdir` subcommand.
└── Provide CLI, Go library and Web.

が1rootで生成される文字列とすると、432byte
bufio.Writerはブロック単位(4096byteとか)で書き込むようなので、大体9rootはバッファに溜め込める。
なので、バッファなしなら9回ファイル書き込みのところ、バッファありなら1回に済みそうだから、速度改善が見込めそう。

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ddddddO avatar ddddddO commented on June 12, 2024

使ってた笑

ただ、現状roor毎にbufio.NewWriterしてwrite->flushしてるから、恩恵を受けてない。伸び代がある

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ddddddO avatar ddddddO commented on June 12, 2024

#137
より結構な改善ができてた。ただ、どこでバッファ持つか。newSpreaderにw渡してbufio.NewWriterして構造体に持つのがいいか。
でもnewTreeの引数にw入れないといけないか。そうすると、mkdirのときwない。

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ddddddO avatar ddddddO commented on June 12, 2024

一時的にそうする

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ddddddO avatar ddddddO commented on June 12, 2024

いや、ちょっと面倒なので、spread func でNewWriterするで...

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ddddddO avatar ddddddO commented on June 12, 2024

対応済み

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