Improve performance and reduce memory allocation

[JoviDeCroock]

As @developit found out, delete x is much faster nowadays.

• in jsx we delete the ref and always keep the props object, no cloning
  • Can leave this one out if we feel skeptical, would love to go for the forwardRef changes though
• in forwardRef we delete and re-apply the ref to the props object to avoid cloning
• in forwardRef we add a bail case where we keep props when no ref is passed to us

[github-actions]

📊 Tachometer Benchmark Results

Summary

duration

• create10k: slower ❌ 0% - 1% (0.34ms - 10.18ms)
  ^{preact-local vs preact-main}
• filter-list: unsure 🔍 -2% - +1% (-0.37ms - +0.15ms)
  ^{preact-local vs preact-main}
• hydrate1k: unsure 🔍 -1% - +2% (-0.39ms - +1.40ms)
  ^{preact-local vs preact-main}
• many-updates: unsure 🔍 -1% - +2% (-0.23ms - +0.41ms)
  ^{preact-local vs preact-main}
• replace1k: unsure 🔍 -2% - +1% (-1.76ms - +0.71ms)
  ^{preact-local vs preact-main}
• text-update: unsure 🔍 -1% - +5% (-0.03ms - +0.09ms)
  ^{preact-local vs preact-main}
• todo: unsure 🔍 -1% - +0% (-0.36ms - +0.16ms)
  ^{preact-local vs preact-main}
• update10th1k: unsure 🔍 -3% - +2% (-1.08ms - +0.74ms)
  ^{preact-local vs preact-main}

usedJSHeapSize

• create10k: unsure 🔍 -0% - +0% (-0.04ms - +0.01ms)
  ^{preact-local vs preact-main}
• filter-list: unsure 🔍 -2% - +1% (-0.03ms - +0.01ms)
  ^{preact-local vs preact-main}
• hydrate1k: unsure 🔍 -2% - +2% (-0.23ms - +0.33ms)
  ^{preact-local vs preact-main}
• many-updates: unsure 🔍 -1% - +0% (-0.02ms - +0.01ms)
  ^{preact-local vs preact-main}
• replace1k: unsure 🔍 -1% - +0% (-0.02ms - +0.01ms)
  ^{preact-local vs preact-main}
• text-update: unsure 🔍 +0% - +0% (+0.00ms - +0.00ms)
  ^{preact-local vs preact-main}
• todo: unsure 🔍 -2% - +1% (-0.02ms - +0.01ms)
  ^{preact-local vs preact-main}
• update10th1k: unsure 🔍 -1% - +0% (-0.02ms - +0.01ms)
  ^{preact-local vs preact-main}

Results

create10k

• Browser: chrome-headless
• Sample size: 50
• Built by: Benchmarks #1704

• Commit: 79303ec

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	966.99ms - 976.17ms	-	slower ❌ 0% - 1% 0.34ms - 10.18ms
preact-main	964.56ms - 968.08ms	faster ✔ 0% - 1% 0.34ms - 10.18ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	25.37ms - 25.40ms	-	unsure 🔍 -0% - +0% -0.04ms - +0.01ms
preact-main	25.38ms - 25.42ms	unsure 🔍 -0% - +0% -0.01ms - +0.04ms	-

filter-list

• Browser: chrome-headless
• Sample size: 50
• Built by: Benchmarks #1704

• Commit: 79303ec

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	16.56ms - 16.61ms	-	unsure 🔍 -2% - +1% -0.37ms - +0.15ms
preact-main	16.43ms - 16.96ms	unsure 🔍 -1% - +2% -0.15ms - +0.37ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.67ms - 1.69ms	-	unsure 🔍 -2% - +1% -0.03ms - +0.01ms
preact-main	1.67ms - 1.71ms	unsure 🔍 -1% - +2% -0.01ms - +0.03ms	-

hydrate1k

• Browser: chrome-headless
• Sample size: 50
• Built by: Benchmarks #1704

• Commit: 79303ec

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	75.86ms - 77.11ms	-	unsure 🔍 -1% - +2% -0.39ms - +1.40ms
preact-main	75.34ms - 76.62ms	unsure 🔍 -2% - +1% -1.40ms - +0.39ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	15.42ms - 15.75ms	-	unsure 🔍 -2% - +2% -0.23ms - +0.33ms
preact-main	15.30ms - 15.77ms	unsure 🔍 -2% - +1% -0.33ms - +0.23ms	-

many-updates

• Browser: chrome-headless
• Sample size: 50
• Built by: Benchmarks #1704

• Commit: 79303ec

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	16.35ms - 16.97ms	-	unsure 🔍 -1% - +2% -0.23ms - +0.41ms
preact-main	16.49ms - 16.64ms	unsure 🔍 -2% - +1% -0.41ms - +0.23ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	4.58ms - 4.60ms	-	unsure 🔍 -1% - +0% -0.02ms - +0.01ms
preact-main	4.58ms - 4.61ms	unsure 🔍 -0% - +1% -0.01ms - +0.02ms	-

replace1k

• Browser: chrome-headless
• Sample size: 100
• Built by: Benchmarks #1704

• Commit: 79303ec

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	74.25ms - 75.74ms	-	unsure 🔍 -2% - +1% -1.76ms - +0.71ms
preact-main	74.53ms - 76.51ms	unsure 🔍 -1% - +2% -0.71ms - +1.76ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	3.60ms - 3.61ms	-	unsure 🔍 -1% - +0% -0.02ms - +0.01ms
preact-main	3.59ms - 3.63ms	unsure 🔍 -0% - +1% -0.01ms - +0.02ms	-

run-warmup-0

Version	Avg time	vs preact-local	vs preact-main
preact-local	31.05ms - 31.80ms	-	unsure 🔍 -2% - +1% -0.60ms - +0.41ms
preact-main	31.18ms - 31.86ms	unsure 🔍 -1% - +2% -0.41ms - +0.60ms	-

run-warmup-1

Version	Avg time	vs preact-local	vs preact-main
preact-local	36.00ms - 37.35ms	-	unsure 🔍 -3% - +2% -1.11ms - +0.85ms
preact-main	36.10ms - 37.52ms	unsure 🔍 -2% - +3% -0.85ms - +1.11ms	-

run-warmup-2

Version	Avg time	vs preact-local	vs preact-main
preact-local	26.66ms - 27.13ms	-	unsure 🔍 -3% - +0% -0.89ms - +0.01ms
preact-main	26.95ms - 27.73ms	unsure 🔍 -0% - +3% -0.01ms - +0.89ms	-

run-warmup-3

Version	Avg time	vs preact-local	vs preact-main
preact-local	27.32ms - 28.59ms	-	unsure 🔍 -4% - +2% -1.21ms - +0.62ms
preact-main	27.60ms - 28.90ms	unsure 🔍 -2% - +4% -0.62ms - +1.21ms	-

run-warmup-4

Version	Avg time	vs preact-local	vs preact-main
preact-local	21.59ms - 22.27ms	-	unsure 🔍 -0% - +4% -0.03ms - +0.83ms
preact-main	21.26ms - 21.80ms	unsure 🔍 -4% - +0% -0.83ms - +0.03ms	-

run-final

Version	Avg time	vs preact-local	vs preact-main
preact-local	22.89ms - 23.26ms	-	unsure 🔍 -2% - +1% -0.46ms - +0.22ms
preact-main	22.91ms - 23.48ms	unsure 🔍 -1% - +2% -0.22ms - +0.46ms	-

text-update

• Browser: chrome-headless
• Sample size: 180
• Built by: Benchmarks #1704

• Commit: 79303ec

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.99ms - 2.07ms	-	unsure 🔍 -1% - +5% -0.03ms - +0.09ms
preact-main	1.95ms - 2.04ms	unsure 🔍 -5% - +1% -0.09ms - +0.03ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.12ms - 1.12ms	-	unsure 🔍 +0% - +0% +0.00ms - +0.00ms
preact-main	1.12ms - 1.12ms	unsure 🔍 -0% - -0% -0.00ms - -0.00ms	-

todo

• Browser: chrome-headless
• Sample size: 50
• Built by: Benchmarks #1704

• Commit: 79303ec

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	35.00ms - 35.32ms	-	unsure 🔍 -1% - +0% -0.36ms - +0.16ms
preact-main	35.06ms - 35.46ms	unsure 🔍 -0% - +1% -0.16ms - +0.36ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.23ms - 1.24ms	-	unsure 🔍 -2% - +1% -0.02ms - +0.01ms
preact-main	1.23ms - 1.25ms	unsure 🔍 -1% - +2% -0.01ms - +0.02ms	-

update10th1k

• Browser: chrome-headless
• Sample size: 50
• Built by: Benchmarks #1704

• Commit: 79303ec

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	33.62ms - 34.77ms	-	unsure 🔍 -3% - +2% -1.08ms - +0.74ms
preact-main	33.65ms - 35.07ms	unsure 🔍 -2% - +3% -0.74ms - +1.08ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	3.53ms - 3.56ms	-	unsure 🔍 -1% - +0% -0.02ms - +0.01ms
preact-main	3.54ms - 3.56ms	unsure 🔍 -0% - +1% -0.01ms - +0.02ms	-

_{tachometer-reporter-action v2 for Benchmarks}

[github-actions]

Size Change: +20 B (+0.03%)

Total Size: 62.1 kB

Filename	Size	Change
compat/dist/compat.js	4.13 kB	+13 B (+0.32%)
compat/dist/compat.module.js	4.05 kB	+13 B (+0.32%)
compat/dist/compat.umd.js	4.19 kB	+11 B (+0.26%)
jsx-runtime/dist/jsxRuntime.js	976 B	-5 B (-0.51%)
jsx-runtime/dist/jsxRuntime.module.js	949 B	-7 B (-0.73%)
jsx-runtime/dist/jsxRuntime.umd.js	1.05 kB	-5 B (-0.47%)

ℹ️ View Unchanged

Filename	Size
debug/dist/debug.js	3.82 kB
debug/dist/debug.module.js	3.83 kB
debug/dist/debug.umd.js	3.9 kB
devtools/dist/devtools.js	260 B
devtools/dist/devtools.module.js	274 B
devtools/dist/devtools.umd.js	346 B
dist/preact.js	4.66 kB
dist/preact.min.js	4.69 kB
dist/preact.min.module.js	4.68 kB
dist/preact.min.umd.js	4.71 kB
dist/preact.module.js	4.67 kB
dist/preact.umd.js	4.73 kB
hooks/dist/hooks.js	1.53 kB
hooks/dist/hooks.module.js	1.56 kB
hooks/dist/hooks.umd.js	1.6 kB
test-utils/dist/testUtils.js	451 B
test-utils/dist/testUtils.module.js	456 B
test-utils/dist/testUtils.umd.js	536 B

_{compressed-size-action}

[coveralls]

coverage: 99.488%. remained the same
when pulling 79303ec on less-memory-allocation
into 6a66daa on main.

[coveralls]

coverage: 99.489% (+0.001%) from 99.488%
when pulling 5de3be2 on less-memory-allocation
into 6a66daa on main.