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$ yarn init
➤ YN0088: A new stable version of Yarn is available: 4.6.0!
➤ YN0088: Upgrade now by running yarn set version 4.6.0

➤ YN0000: · Yarn 4.0.2
➤ YN0000: ┌ Resolution step
➤ YN0000: └ Completed
➤ YN0000: ┌ Fetch step
➤ YN0000: └ Completed
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➤ YN0000: └ Completed
➤ YN0000: · Done in 0s 45ms
$ ls
README.md	package.json	yarn.lock
$ yarn install
➤ YN0000: · Yarn 4.0.2
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➤ YN0000: · Done in 0s 25ms
$ cat package.json 
{
  "name": "swc-vs-tsc",
  "packageManager": "yarn@4.0.2"
}
$ yarn add -D typescript @swc/cli @swc/core
➤ YN0000: · Yarn 4.0.2
➤ YN0000: ┌ Resolution step
➤ YN0085: │ + @swc/cli@npm:0.6.0, @swc/core@npm:1.10.7, typescript@patch:typescript@npm%3A5.7.3#optional!builtin<compat/typescript>::version=5.7.3&hash=e012d7, and 151 more.
➤ YN0000: └ Completed in 3s 424ms
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➤ YN0066: │ typescript@patch:typescript@npm%3A5.7.3#optional!builtin<compat/typescript>::version=5.7.3&hash=e012d7: Cannot apply hunk #1
➤ YN0013: │ 88 packages were added to the project (+ 82.5 MiB).
➤ YN0000: └ Completed in 1s 743ms
➤ YN0000: ┌ Link step
➤ YN0000: │ ESM support for PnP uses the experimental loader API and is therefore experimental
➤ YN0007: │ @swc/core@npm:1.10.7 [dc2f5] must be built because it never has been before or the last one failed
➤ YN0000: └ Completed in 1s 246ms
➤ YN0000: · Done with warnings in 6s 439ms

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$ cat generate-bench.js 
const fs = require("fs");

const lines = [];
lines.push(`// 自動生成された TypeScript ファイル`);
lines.push(`// 適度な量のインターフェイス・クラス・ジェネリクスを含む`);

for (let i = 0; i < 3000; i++) {
  // 例として、同じようなインターフェイスを多数生成
  lines.push(`
    interface Data${i} {
      id: number;
      name: string;
      tags: string[];
    }
    type Alias${i} = Data${i} & { extra?: boolean };

    // ジェネリクスの例
    function processData${i}<T extends Data${i}>(input: T): T {
      return { ...input, tags: input.tags.map(tag => tag.toUpperCase()) };
    }
  `);
}

lines.push(`
  // テスト用の関数呼び出し例
  const sample: Data0 = { id: 0, name: "test", tags: ["tag0"] };
  console.log(processData0(sample));
`);

fs.writeFileSync("bench.ts", lines.join("\n"));
console.log("Generated bench.ts with", lines.length, "lines");

$ node generate-bench.js 
Generated bench.ts with 3003 lines

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$ cat tsc.sh 
for i in {1..5}; do
  echo "tsc trial $i"
  time yarn tsc bench.ts --noEmit
done

$ chmod +x tsc.sh
$ ./tsc.sh 
tsc trial 1

real	0m1.336s
user	0m2.882s
sys	0m0.129s
tsc trial 2

real	0m1.245s
user	0m2.789s
sys	0m0.106s
tsc trial 3

real	0m1.252s
user	0m2.815s
sys	0m0.104s
tsc trial 4

real	0m1.239s
user	0m2.793s
sys	0m0.104s
tsc trial 5

real	0m1.239s
user	0m2.802s
sys	0m0.103s

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$ cat swc.sh 
for i in {1..5}; do
  echo "swc trial $i"
  time yarn swc bench.ts -o /dev/null
done

$ chmod +x ./swc.sh 
$ ./swc.sh 
swc trial 1
Successfully compiled 1 file with swc.

real	0m0.552s
user	0m0.525s
sys	0m0.069s
swc trial 2
Successfully compiled 1 file with swc.

real	0m0.450s
user	0m0.494s
sys	0m0.051s
swc trial 3
Successfully compiled 1 file with swc.

real	0m0.453s
user	0m0.495s
sys	0m0.050s
swc trial 4
Successfully compiled 1 file with swc.

real	0m0.448s
user	0m0.493s
sys	0m0.050s
swc trial 5
Successfully compiled 1 file with swc.

real	0m0.449s
user	0m0.495s
sys	0m0.050s