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packages/testing/performance/vitest.config.ts

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+import codspeedPlugin from '@codspeed/vitest-plugin';
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+	plugins: [process.env.CODSPEED ? codspeedPlugin() : null].filter(Boolean),
+	test: {
+		benchmark: {
+			include: ['benchmarks/**/*.bench.ts'],
+			// Run each benchmark longer for more stable results
+			// Default is 500ms - we use 1000ms for ~2x more samples
+			time: 1000,
+			// Warmup: ensure JIT compilation is complete before measuring
+			// Default is 5 iterations - we use 100 for more thorough warmup
+			warmupIterations: 100,
+			// Default warmup time is 100ms - we use 500ms for stability
+			warmupTime: 500,
+		},
+	},
+});