test: add reactivity benchmark

[sxzz]

Add benchmark integrated with CodSpeed and Vitest.

• CODSPEED_TOKEN secret is required to config in GitHub actions

Thanks to https://github.com/basvanmeurs/vue-next-benchmarks

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	87 kB	33.1 kB	29.9 kB
vue.global.prod.js	133 kB	49.9 kB	44.8 kB

Usages

Name	Size	Gzip	Brotli
createApp	48.3 kB	19 kB	17.4 kB
createSSRApp	51.5 kB	20.3 kB	18.5 kB
defineCustomElement	50.7 kB	19.8 kB	18 kB
overall	61.7 kB	23.9 kB	21.7 kB

[codspeed-hq]

CodSpeed Performance Report

Congrats! CodSpeed is installed 🎉

🆕 53 new benchmarks were detected.

You will start to see performance impacts in the reports once the benchmarks are run from your default branch.

Detected benchmarks

• write reactive map, read computed (302.8 µs)
• create reactive map (57.5 µs)
• 1000 reactive maps, 1 computed (31.7 ms)
• write reactive map, read 1000 computeds (48.6 ms)
• write reactive map, don't read computed (never invoked) (62.1 µs)
• create computed (37.8 µs)
• write reactive map, don't read 1000 computeds (never invoked) (76.5 µs)
• write reactive map (10'000 items), read computed (40.4 ms)
• write reactive map, don't read 1000 computeds (invoked) (4.9 ms)
• write reactive map, don't read computed (invoked) (178.3 µs)
• write reactive map property (85.9 µs)
• write independent ref dep (55.3 µs)
• write ref, don't read computed (never invoked) (55.1 µs)
• write ref, don't read computed (invoked) (123.1 µs)
• write ref, read computed (286.2 µs)
• write ref, don't read 1000 computeds (never invoked) (62.4 µs)
• write reactive obj property (93.7 µs)
• write ref, read 1000 computeds (29.7 ms)
• write ref, don't read 1000 computeds (invoked) (3.4 ms)
• 1000 refs, 1 computed (14.7 ms)
• write reactive obj, don't read computed (invoked) (190.4 µs)
• create reactive obj (50 µs)
• write reactive obj, read computed (298.6 µs)
• write reactive obj, don't read 1000 computeds (invoked) (3.5 ms)
• write reactive obj, read 1000 computeds (39.5 ms)
• write reactive obj, don't read 1000 computeds (never invoked) (123.7 µs)
• write reactive obj, don't read computed (never invoked) (93.4 µs)
• 1000 reactive objs, 1 computed (24.1 ms)
• reduce *reactive* array, 10 elements (3.5 ms)
• reduce *reactive* array, 10 elements, only change first value (657 µs)
• reduce *readonly* array, 10 elements (1.8 ms)
• reduce *raw* array, manually triggered, 10 elements (1.1 ms)
• reduce *raw* array, copied, 10 elements (379.8 µs)
• reduce *reactive* array, 100 elements (11.9 ms)
• reduce *raw* array, copied, 100 elements (247.8 µs)
• reduce *raw* array, manually triggered, 100 elements (288.6 µs)
• reduce *reactive* array, 100 elements, only change first value (3.8 ms)
• reduce *readonly* array, 100 elements (6.7 ms)
• reduce *reactive* array, 1000 elements (123.1 ms)
• reduce *reactive* array, 1000 elements, only change first value (35.4 ms)
• reduce *readonly* array, 1000 elements (64 ms)
• reduce *raw* array, copied, 1000 elements (952.6 µs)
• update ref to trigger watcher (scheduled but not executed) (296.9 µs)
• reduce *raw* array, manually triggered, 1000 elements (1.1 ms)
• update ref to trigger watcher (executed) (1.6 ms)
• update ref to trigger watchEffect (executed) (232.8 µs)
• create watcher (231.5 µs)
• update ref to trigger watchEffect (scheduled but not executed) (1.2 ms)
• write ref (88 µs)
• write/read ref (89.5 µs)
• read ref (22 µs)
• create ref (41.4 µs)
• create watchEffect (107.1 µs)