Reduce width on trace viewer detail pane by mitul-s · Pull Request #2209 · vercel/workflow

mitul-s · 2026-06-01T20:58:48Z

Making detail pane smaller, took up a lot of space of the timeline.

vercel · 2026-06-01T20:58:55Z

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changeset-bot · 2026-06-01T20:58:58Z

🦋 Changeset detected

Latest commit: b26582e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages

Name	Type
@workflow/web-shared	Patch
@workflow/web	Patch
@workflow/cli	Patch
workflow	Patch
@workflow/world-testing	Patch
@workflow/core	Patch
@workflow/builders	Patch
@workflow/next	Patch
@workflow/nitro	Patch
@workflow/vitest	Patch
@workflow/astro	Patch
@workflow/nest	Patch
@workflow/rollup	Patch
@workflow/sveltekit	Patch
@workflow/vite	Patch
@workflow/nuxt	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

github-actions · 2026-06-01T20:59:05Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.040s (-7.2% 🟢)	1.005s (~)	0.965s	10	1.00x
💻 Local	Express	0.047s (+5.2% 🔺)	1.007s (~)	0.960s	10	1.17x
💻 Local	Next.js (Turbopack)	0.053s	1.005s	0.952s	10	1.31x
🐘 Postgres	Express	0.059s (+2.6%)	1.014s (~)	0.954s	10	1.49x
🐘 Postgres	Nitro	0.066s (-31.1% 🟢)	1.012s (-3.0%)	0.947s	10	1.64x
🐘 Postgres	Next.js (Turbopack)	0.069s	1.013s	0.944s	10	1.73x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	0.295s (+25.3% 🔺)	2.197s (+2.9%)	1.902s	10	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	1.096s (-2.6%)	2.007s (~)	0.911s	10	1.00x
💻 Local	Nitro	1.097s (-3.0%)	2.006s (~)	0.909s	10	1.00x
💻 Local	Next.js (Turbopack)	1.105s	2.006s	0.901s	10	1.01x
🐘 Postgres	Express	1.113s (-2.9%)	2.011s (~)	0.898s	10	1.02x
🐘 Postgres	Nitro	1.115s (-2.2%)	2.010s (~)	0.895s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	1.141s	2.010s	0.868s	10	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	1.625s (-13.3% 🟢)	3.341s (-12.2% 🟢)	1.716s	10	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.524s (-3.9%)	11.022s (~)	0.498s	3	1.00x
💻 Local	Express	10.532s (-3.6%)	11.023s (~)	0.492s	3	1.00x
🐘 Postgres	Nitro	10.546s (-3.0%)	11.018s (~)	0.472s	3	1.00x
🐘 Postgres	Express	10.592s (-3.4%)	11.022s (~)	0.431s	3	1.01x
💻 Local	Next.js (Turbopack)	10.609s	11.021s	0.413s	3	1.01x
🐘 Postgres	Next.js (Turbopack)	10.809s	11.019s	0.210s	3	1.03x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	13.273s (-21.8% 🟢)	15.024s (-25.0% 🟢)	1.751s	2	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	13.743s (-5.8% 🟢)	14.020s (-6.7% 🟢)	0.277s	5	1.00x
💻 Local	Nitro	13.745s (-8.7% 🟢)	14.027s (-12.5% 🟢)	0.282s	5	1.00x
💻 Local	Express	13.796s (-7.8% 🟢)	14.028s (-6.7% 🟢)	0.232s	5	1.00x
🐘 Postgres	Nitro	13.916s (-4.7%)	14.021s (-6.7% 🟢)	0.105s	5	1.01x
💻 Local	Next.js (Turbopack)	13.986s	14.225s	0.239s	5	1.02x
🐘 Postgres	Next.js (Turbopack)	14.509s	15.018s	0.509s	4	1.06x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	22.658s (-55.0% 🟢)	24.537s (-53.3% 🟢)	1.879s	3	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	12.428s (-11.3% 🟢)	13.021s (-10.8% 🟢)	0.593s	7	1.00x
💻 Local	Nitro	12.432s (-25.9% 🟢)	13.025s (-23.5% 🟢)	0.594s	7	1.00x
🐘 Postgres	Nitro	12.545s (-10.2% 🟢)	13.021s (-9.0% 🟢)	0.477s	7	1.01x
💻 Local	Express	12.612s (-24.0% 🟢)	13.025s (-23.5% 🟢)	0.414s	7	1.01x
💻 Local	Next.js (Turbopack)	12.867s	13.024s	0.157s	7	1.04x
🐘 Postgres	Next.js (Turbopack)	13.793s	14.162s	0.369s	7	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	30.543s (-74.8% 🟢)	32.571s (-73.7% 🟢)	2.028s	3	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.186s (-6.9% 🟢)	2.008s (~)	0.822s	15	1.00x
💻 Local	Nitro	1.187s (-27.3% 🟢)	2.006s (-3.3%)	0.819s	15	1.00x
💻 Local	Express	1.196s (-19.6% 🟢)	2.007s (~)	0.811s	15	1.01x
🐘 Postgres	Express	1.216s (-3.5%)	2.009s (~)	0.793s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.243s	2.008s	0.765s	15	1.05x
💻 Local	Next.js (Turbopack)	1.295s	2.005s	0.711s	15	1.09x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.843s (-0.6%)	4.340s (-6.1% 🟢)	1.497s	7	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.260s (-46.4% 🟢)	2.008s (-33.3% 🟢)	0.748s	15	1.00x
🐘 Postgres	Express	1.284s (-45.6% 🟢)	2.008s (-33.3% 🟢)	0.723s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.428s	2.074s	0.646s	15	1.13x
💻 Local	Next.js (Turbopack)	1.736s	2.006s	0.270s	15	1.38x
💻 Local	Nitro	1.756s (-44.1% 🟢)	2.007s (-48.3% 🟢)	0.251s	15	1.39x
💻 Local	Express	1.975s (-33.1% 🟢)	2.393s (-30.7% 🟢)	0.418s	13	1.57x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.748s (+3.6%)	5.257s (+2.9%)	1.509s	6	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.394s (-59.9% 🟢)	2.007s (-49.9% 🟢)	0.613s	15	1.00x
🐘 Postgres	Express	1.442s (-58.6% 🟢)	2.009s (-49.9% 🟢)	0.567s	15	1.03x
🐘 Postgres	Next.js (Turbopack)	1.818s	2.297s	0.479s	14	1.30x
💻 Local	Next.js (Turbopack)	4.455s	5.011s	0.556s	7	3.20x
💻 Local	Nitro	5.119s (-38.7% 🟢)	5.681s (-37.0% 🟢)	0.563s	6	3.67x
💻 Local	Express	5.501s (-34.0% 🟢)	6.014s (-33.4% 🟢)	0.513s	5	3.95x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	4.812s (+13.5% 🔺)	6.806s (+11.1% 🔺)	1.995s	5	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.188s (-5.5% 🟢)	2.010s (~)	0.821s	15	1.00x
🐘 Postgres	Nitro	1.196s (-4.9%)	2.007s (~)	0.811s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.249s	2.009s	0.760s	15	1.05x
💻 Local	Next.js (Turbopack)	1.314s	2.006s	0.692s	15	1.11x
💻 Local	Nitro	1.543s (-17.3% 🟢)	2.006s (-14.3% 🟢)	0.464s	15	1.30x
💻 Local	Express	1.580s (-16.6% 🟢)	2.007s (-15.1% 🟢)	0.427s	15	1.33x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.935s (+13.7% 🔺)	4.580s (+5.3% 🔺)	1.645s	7	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.247s (-46.8% 🟢)	2.009s (-33.3% 🟢)	0.762s	15	1.00x
🐘 Postgres	Nitro	1.267s (-45.8% 🟢)	2.007s (-33.3% 🟢)	0.740s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.387s	2.009s	0.622s	15	1.11x
💻 Local	Next.js (Turbopack)	1.991s	2.391s	0.399s	13	1.60x
💻 Local	Nitro	1.996s (-34.9% 🟢)	2.508s (-35.5% 🟢)	0.512s	12	1.60x
💻 Local	Express	2.162s (-31.0% 🟢)	2.674s (-28.9% 🟢)	0.512s	12	1.73x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.822s (+19.7% 🔺)	5.453s (+13.8% 🔺)	1.631s	6	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.383s (-60.3% 🟢)	2.008s (-49.9% 🟢)	0.625s	15	1.00x
🐘 Postgres	Express	1.385s (-60.4% 🟢)	2.008s (-49.9% 🟢)	0.623s	15	1.00x
🐘 Postgres	Next.js (Turbopack)	1.754s	2.077s	0.324s	15	1.27x
💻 Local	Next.js (Turbopack)	4.837s	5.514s	0.678s	6	3.50x
💻 Local	Nitro	5.490s (-40.0% 🟢)	6.013s (-40.0% 🟢)	0.524s	5	3.97x
💻 Local	Express	5.962s (-32.3% 🟢)	6.615s (-28.7% 🟢)	0.654s	5	4.31x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	5.123s (-20.2% 🟢)	6.736s (-17.6% 🟢)	1.613s	5	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.542s (-35.4% 🟢)	1.007s (-1.6%)	0.464s	60	1.00x
💻 Local	Nitro	0.592s (-39.7% 🟢)	1.005s (-8.2% 🟢)	0.413s	60	1.09x
🐘 Postgres	Nitro	0.596s (-27.3% 🟢)	1.024s (+1.7%)	0.427s	59	1.10x
💻 Local	Express	0.634s (-35.5% 🟢)	1.022s (-5.0% 🟢)	0.388s	59	1.17x
💻 Local	Next.js (Turbopack)	0.719s	1.039s	0.320s	58	1.33x
🐘 Postgres	Next.js (Turbopack)	0.823s	1.023s	0.200s	59	1.52x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	5.032s (-73.5% 🟢)	7.060s (-66.9% 🟢)	2.028s	9	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.336s (-32.4% 🟢)	2.030s (-10.1% 🟢)	0.694s	45	1.00x
🐘 Postgres	Nitro	1.415s (-26.6% 🟢)	2.055s (-2.2%)	0.640s	44	1.06x
💻 Local	Nitro	1.493s (-50.8% 🟢)	2.006s (-46.6% 🟢)	0.513s	45	1.12x
💻 Local	Express	1.565s (-48.1% 🟢)	2.006s (-44.1% 🟢)	0.441s	45	1.17x
💻 Local	Next.js (Turbopack)	1.694s	2.028s	0.334s	45	1.27x
🐘 Postgres	Next.js (Turbopack)	1.972s	2.176s	0.204s	42	1.48x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	12.863s (-62.7% 🟢)	14.812s (-59.8% 🟢)	1.949s	7	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.656s (-33.4% 🟢)	3.085s (-29.4% 🟢)	0.429s	39	1.00x
🐘 Postgres	Nitro	2.749s (-33.0% 🟢)	3.086s (-33.0% 🟢)	0.337s	39	1.04x
💻 Local	Nitro	3.232s (-65.2% 🟢)	4.009s (-60.0% 🟢)	0.777s	30	1.22x
💻 Local	Express	3.538s (-61.6% 🟢)	4.043s (-59.6% 🟢)	0.505s	30	1.33x
💻 Local	Next.js (Turbopack)	3.644s	4.042s	0.398s	30	1.37x
🐘 Postgres	Next.js (Turbopack)	3.844s	4.012s	0.167s	30	1.45x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	28.559s (-78.0% 🟢)	30.922s (-76.6% 🟢)	2.363s	4	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.213s (-24.7% 🟢)	1.006s (~)	0.793s	60	1.00x
🐘 Postgres	Nitro	0.226s (-20.3% 🟢)	1.006s (~)	0.780s	60	1.06x
🐘 Postgres	Next.js (Turbopack)	0.282s	1.007s	0.725s	60	1.33x
💻 Local	Nitro	0.432s (-28.5% 🟢)	1.004s (-1.7%)	0.572s	60	2.03x
💻 Local	Express	0.480s (-14.3% 🟢)	1.022s (+1.7%)	0.541s	59	2.26x
💻 Local	Next.js (Turbopack)	0.533s	1.004s	0.470s	60	2.51x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.353s (+20.4% 🔺)	3.766s (+3.6%)	1.414s	16	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.341s (-33.1% 🟢)	1.006s (~)	0.665s	90	1.00x
🐘 Postgres	Nitro	0.351s (-29.3% 🟢)	1.007s (~)	0.656s	90	1.03x
🐘 Postgres	Next.js (Turbopack)	0.503s	1.006s	0.504s	90	1.47x
💻 Local	Nitro	2.121s (-16.4% 🟢)	2.714s (-9.8% 🟢)	0.593s	34	6.22x
💻 Local	Express	2.265s (-9.9% 🟢)	2.822s (-6.2% 🟢)	0.557s	32	6.64x
💻 Local	Next.js (Turbopack)	2.363s	3.044s	0.681s	30	6.92x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	5.304s (+74.1% 🔺)	6.926s (+44.1% 🔺)	1.622s	13	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.656s (-19.8% 🟢)	1.006s (-1.1%)	0.350s	120	1.00x
🐘 Postgres	Nitro	0.692s (-12.4% 🟢)	1.006s (~)	0.314s	120	1.06x
🐘 Postgres	Next.js (Turbopack)	1.002s	1.713s	0.711s	71	1.53x
💻 Local	Nitro	9.593s (-14.3% 🟢)	10.192s (-12.6% 🟢)	0.599s	12	14.62x
💻 Local	Next.js (Turbopack)	10.068s	10.778s	0.710s	12	15.34x
💻 Local	Express	10.305s (-7.9% 🟢)	10.696s (-10.4% 🟢)	0.391s	12	15.70x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	15.442s (+108.1% 🔺)	17.270s (+86.8% 🔺)	1.828s	7	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-

🔍 Observability: Express

Stream Benchmarks (includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.161s (+443.2% 🔺)	2.005s (+99.6% 🔺)	0.012s (-4.0%)	2.019s (+98.2% 🔺)	0.858s	10	1.00x
🐘 Postgres	Nitro	1.166s (+468.8% 🔺)	2.001s (+100.2% 🔺)	0.001s (-26.7% 🟢)	2.010s (+98.8% 🔺)	0.844s	10	1.00x
🐘 Postgres	Express	1.168s (+469.5% 🔺)	1.998s (+100.1% 🔺)	0.001s (-31.3% 🟢)	2.010s (+98.8% 🔺)	0.842s	10	1.01x
💻 Local	Express	1.169s (+487.0% 🔺)	2.005s (+99.6% 🔺)	0.012s (+0.8%)	2.020s (+98.4% 🔺)	0.851s	10	1.01x
💻 Local	Next.js (Turbopack)	1.174s	2.003s	0.009s	2.016s	0.842s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.223s	2.002s	0.001s	2.011s	0.787s	10	1.05x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.284s (-8.8% 🟢)	3.129s (-23.5% 🟢)	1.737s (+80.8% 🔺)	5.355s (-4.2%)	3.071s	10	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-	-

🔍 Observability: Express

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.591s (+152.5% 🔺)	2.003s (+99.0% 🔺)	0.004s (-1.7%)	2.026s (+98.0% 🔺)	0.435s	30	1.00x
💻 Local	Nitro	1.591s (+89.7% 🔺)	2.009s (+98.5% 🔺)	0.010s (+3.2%)	2.020s (+81.0% 🔺)	0.429s	30	1.00x
🐘 Postgres	Nitro	1.610s (+158.0% 🔺)	2.005s (+99.2% 🔺)	0.004s (-3.3%)	2.027s (+98.2% 🔺)	0.416s	30	1.01x
💻 Local	Next.js (Turbopack)	1.624s	2.008s	0.010s	2.020s	0.396s	30	1.02x
🐘 Postgres	Next.js (Turbopack)	1.779s	2.012s	0.004s	2.027s	0.248s	30	1.12x
💻 Local	Express	1.812s (+139.4% 🔺)	2.010s (+95.4% 🔺)	0.010s (+1.7%)	2.201s (+111.7% 🔺)	0.389s	28	1.14x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	5.873s (-9.7% 🟢)	7.147s (-10.8% 🟢)	0.268s (-34.4% 🟢)	7.820s (-11.5% 🟢)	1.948s	8	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-	-

🔍 Observability: Express

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.697s (-28.1% 🟢)	0.996s (-20.2% 🟢)	0.000s (+62.7% 🔺)	1.019s (-19.0% 🟢)	0.323s	59	1.00x
🐘 Postgres	Express	0.705s (-26.6% 🟢)	1.087s (-15.0% 🟢)	0.000s (-17.9% 🟢)	1.097s (-16.0% 🟢)	0.392s	56	1.01x
🐘 Postgres	Next.js (Turbopack)	0.836s	1.091s	0.000s	1.098s	0.261s	56	1.20x
💻 Local	Nitro	1.365s (+11.6% 🔺)	2.014s (~)	0.000s (+333.3% 🔺)	2.016s (~)	0.651s	30	1.96x
💻 Local	Next.js (Turbopack)	1.431s	2.011s	0.000s	2.013s	0.582s	30	2.05x
💻 Local	Express	1.458s (+19.0% 🔺)	2.015s (~)	0.001s (+110.0% 🔺)	2.017s (~)	0.559s	30	2.09x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.587s (-4.1%)	4.702s (-7.8% 🟢)	0.011s (+5812.5% 🔺)	5.111s (-7.6% 🟢)	1.524s	12	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-	-

🔍 Observability: Express

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.390s (-21.6% 🟢)	2.068s (-5.0% 🟢)	0.000s (+Infinity% 🔺)	2.104s (-4.3%)	0.714s	29	1.00x
🐘 Postgres	Nitro	1.450s (-19.1% 🟢)	2.101s (-1.9%)	0.000s (+93.1% 🔺)	2.127s (-2.2%)	0.677s	29	1.04x
🐘 Postgres	Next.js (Turbopack)	1.734s	2.261s	0.000s	2.283s	0.549s	27	1.25x
💻 Local	Next.js (Turbopack)	3.066s	3.836s	0.001s	3.840s	0.774s	16	2.21x
💻 Local	Nitro	3.478s (+2.7%)	3.956s (-1.9%)	0.001s (-6.2% 🟢)	4.316s (+6.9% 🔺)	0.838s	14	2.50x
💻 Local	Express	3.777s (+8.9% 🔺)	4.028s (~)	0.001s (-10.7% 🟢)	4.389s (+8.7% 🔺)	0.612s	14	2.72x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	5.585s (+21.7% 🔺)	6.934s (+15.1% 🔺)	0.000s (NaN%)	7.323s (+13.4% 🔺)	1.739s	9	1.00x
▲ Vercel	Next.js (Turbopack)	⚠️ missing	-	-	-	-	-
▲ Vercel	Nitro	⚠️ missing	-	-	-	-	-

🔍 Observability: Express

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	14/21
🐘 Postgres	Express	14/21
▲ Vercel	Express	21/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	17/21
Next.js (Turbopack)	🐘 Postgres	11/21
Nitro	🐘 Postgres	13/21

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Redis + BullMQ: Community world (local development)
🌐 Cloudflare: Community world (local development)
🌐 MySQL: Community world (local development)
🌐 Azure: Community world (local development)
🌐 NATS JetStream: Community world (local development)
🌐 Upstash: Community world (local development)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

github-actions · 2026-06-01T20:59:06Z

🧪 E2E Test Results

✅ All tests passed

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	1133	217	1350
✅ 💻 Local Development	1671	219	1890
✅ 📦 Local Production	1671	219	1890
✅ 🐘 Local Postgres	1671	219	1890
✅ 🪟 Windows	135	0	135
✅ 📋 Other	769	176	945
Total	7050	1050	8100

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	109	26
✅ example	109	26
✅ express	109	26
✅ fastify	109	26
✅ hono	109	26
✅ nextjs-webpack	133	2
✅ nitro	109	26
✅ nuxt	109	26
✅ sveltekit	128	7
✅ vite	109	26

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	135	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	110	25
✅ e2e-local-dev-tanstack-start-	110	25
✅ e2e-local-postgres-nest-stable	110	25
✅ e2e-local-postgres-tanstack-start-	110	25
✅ e2e-local-prod-nest-stable	110	25
✅ e2e-local-prod-tanstack-start-	110	25
✅ e2e-vercel-prod-tanstack-start	109	26

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: failure
Local Dev: success
Local Prod: success
Local Postgres: success
Windows: success

Check the workflow run for details.

Update trace-viewer.tsx

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mitul-s requested a review from a team as a code owner June 1, 2026 20:58

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Create narrow-trace-detail-pane.md

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📊 Benchmark Results

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

Summary

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