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Model document font loading layout barriers - #87

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@ldm0 ldm0 commented Aug 16, 2026

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Spider Bench A/B

✅ All benchmark browser service runs completed; results are informational.

Public HEAD: 179 / 240 rows; 37 / 48 sites produced rows; 11 unexpected empty sites.

✅ Deterministic fixture diagnostic is clean.

Common ancestor 94b59802b13b → HEAD d9af4beacab6; benchmark order: head-first; workflow: success.

Public 48-site run · informational

Metric Base HEAD Δ
Run status success success —
Extracted rows / contract 179 / 240 179 / 240 0 (0.00%)
Contract fill 74.58% 74.58% 0.00 pp (0.00%)
Sites with rows 37 / 48 37 / 48 0 (0.00%)
Sites meeting row contract 35 / 48 35 / 48 0 (0.00%)
Unexpected empty sites 11 11 0 (0.00%)
Partial-row sites 2 2 0 (0.00%)
Site outcomes extracted: 36; HTTP error + rows: 1; empty: 8; HTTP error + empty: 1; snapshot error + empty: 2 extracted: 35; HTTP error + rows: 2; empty: 7; HTTP error + empty: 1; snapshot error + empty: 3 —
Observed duration 44.47 s 45.94 s +1.47 s (+3.30%)
Estimated CPU 37.95 s 37.42 s -0.53 s (-1.40%)
Peak PSS 471.42 MiB 444.16 MiB -27.26 MiB (-5.78%)
Peak RSS 477.46 MiB 446.41 MiB -31.05 MiB (-6.50%)
Peak threads 27 27 0 (0.00%)
Mismatched sites 0 0 0
Timeout with items 0 0 0
Category rows Base HEAD Δ
news 35 / 40 35 / 40 0
stocks 20 / 40 20 / 40 0
tech 35 / 40 35 / 40 0
sports 27 / 40 27 / 40 0
games 37 / 40 37 / 40 0
life 25 / 40 25 / 40 0

Public-site content, timing, and memory are noisy. This single A/B run reports evidence only; site outcome counts explain missing rows without treating them as a deterministic regression.

CPU and memory timelines

These are bounded 40-point views of the same complete process-tree samples used by the HTML report. CPU uses 100% per occupied logical core; memory lines are RSS first and PSS second when complete PSS samples are available.

Base

xychart-beta
    title "Base CPU"
    x-axis "Elapsed seconds" [1.061, 2.063, 2.563, 3.565, 4.566, 5.068, 5.576, 6.07, 7.572, 8.576, 10.079, 11.079, 12.581, 13.585, 15.089, 16.091, 17.594, 18.595, 20.098, 21.1, 22.606, 23.607, 24.607, 26.109, 27.111, 28.614, 29.615, 31.12, 32.124, 33.628, 34.629, 36.131, 37.135, 38.636, 39.644, 41.145, 42.146, 43.648]
    y-axis "CPU percent" 0 --> 200
    line [59.83, 0, 29.96, 119.82, 85.75, 135.57, 173.25, 82.95, 125.89, 111.87, 99.92, 89.93, 127.9, 85.84, 103.91, 43.88, 83.92, 11.97, 101.78, 27.97, 113.87, 109.84, 108.03, 129.98, 101.77, 135.7, 123.84, 101.88, 119.78, 43.95, 83.91, 29.97, 105.28, 23.97, 59.52, 109.88, 27.97, 141.85]
Loading 
xychart-beta
    title "Base memory: RSS then PSS"
    x-axis "Elapsed seconds" [0.06, 1.061, 2.063, 2.563, 3.565, 4.566, 5.068, 5.576, 6.07, 7.572, 8.576, 10.079, 11.079, 12.581, 13.585, 15.089, 16.091, 17.594, 18.595, 20.098, 21.1, 22.606, 23.607, 24.607, 26.109, 27.111, 28.614, 29.615, 31.12, 32.124, 33.628, 34.629, 36.131, 37.135, 38.636, 39.644, 41.145, 42.146, 43.648, 44.468]
    y-axis "Memory MiB" 0 --> 1000
    line [23.34, 119.53, 132.26, 133.88, 175.01, 180.39, 202.96, 214.23, 230.52, 221.37, 251.14, 218.34, 214.24, 241.95, 226.16, 210.81, 210.01, 211.38, 188.75, 220.68, 191.83, 211.04, 261.81, 321.71, 309.65, 336.43, 477.46, 222.8, 230.47, 228.9, 213.64, 214.56, 221.93, 210.44, 205.02, 212.94, 214.14, 203.72, 278.93, 0]
    line [21.08, 116.91, 129.64, 131.36, 172.4, 177.98, 200.34, 211.6, 229.96, 218.73, 248.51, 215.7, 211.62, 239.31, 223.52, 208.16, 207.35, 208.71, 186.08, 218.02, 189.17, 208.82, 259.17, 321.06, 307.02, 333.94, 471.42, 220.15, 227.81, 226.24, 210.98, 211.9, 219.03, 207.05, 202.36, 210.28, 211.49, 201.06, 276.77, 0]
Loading

HEAD

xychart-beta
    title "HEAD CPU"
    x-axis "Elapsed seconds" [1.037, 1.538, 2.539, 4.041, 5.042, 5.543, 6.544, 7.544, 9.046, 10.048, 11.549, 13.051, 14.053, 15.555, 16.556, 18.058, 19.059, 20.561, 21.561, 23.063, 24.565, 25.566, 27.068, 28.071, 29.071, 29.572, 30.573, 32.077, 33.077, 34.578, 36.08, 37.081, 38.584, 39.584, 41.085, 42.086, 43.588, 44.59]
    y-axis "CPU percent" 0 --> 200
    line [29.96, 95.88, 3.99, 105.94, 79.78, 171.8, 148.06, 141.98, 121.78, 109.83, 79.9, 111.85, 0, 2, 61.93, 111.83, 19.97, 115.83, 9.99, 119.83, 99.98, 123.88, 115.76, 99.7, 141.88, 137.85, 41.94, 119.66, 43.99, 97.9, 15.98, 119.9, 101.9, 40.02, 2, 0, 65.86, 103.8]
Loading 
xychart-beta
    title "HEAD memory: RSS then PSS"
    x-axis "Elapsed seconds" [0.036, 1.037, 1.538, 2.539, 4.041, 5.042, 5.543, 6.544, 7.544, 9.046, 10.048, 11.549, 13.051, 14.053, 15.555, 16.556, 18.058, 19.059, 20.561, 21.561, 23.063, 24.565, 25.566, 27.068, 28.071, 29.071, 29.572, 30.573, 32.077, 33.077, 34.578, 36.08, 37.081, 38.584, 39.584, 41.085, 42.086, 43.588, 44.59, 45.937]
    y-axis "Memory MiB" 0 --> 500
    line [23.21, 114.39, 131.16, 123.21, 182.43, 202.23, 234.24, 253.68, 222.1, 236.87, 210.87, 239.83, 218.56, 207.11, 209.61, 212.77, 217.8, 200.77, 243.4, 200.93, 223.15, 285.13, 298.5, 314.3, 377.08, 446.41, 228.83, 206.11, 245.04, 218.2, 203.72, 211.84, 268.48, 350.48, 234.91, 206.71, 214.25, 202.69, 220.62, 0]
    line [21.37, 112.27, 128.99, 121.05, 180.69, 200.08, 232.08, 251.53, 219.35, 234.71, 208.71, 237.67, 216.41, 204.93, 207.44, 210.6, 215.63, 198.6, 241.23, 198.76, 220.98, 282.96, 295.67, 312.13, 374.85, 444.16, 226.62, 203.81, 242.73, 215.95, 201.09, 209.18, 265.86, 347.86, 232.28, 204.08, 211.61, 200.2, 217.99, 0]
Loading

Deterministic fixture · diagnostic

The fixture exercises 15 routes: 8 are expected to emit rows and 7 intentionally exercise empty, loading, or timeout behavior.

Metric Base HEAD Δ
Run status success success —
Extracted rows / contract 40 / 40 40 / 40 0 (0.00%)
Contract fill 100.00% 100.00% 0.00 pp (0.00%)
Sites with rows 8 / 15 8 / 15 0 (0.00%)
Sites meeting row contract 15 / 15 15 / 15 0 (0.00%)
Unexpected empty sites 0 0 0
Partial-row sites 0 0 0
Site outcomes extracted: 7; HTTP error + rows: 1; empty: 3; timeout + empty: 4 extracted: 7; HTTP error + rows: 1; empty: 3; timeout + empty: 4 —
Observed duration 20.01 s 20.00 s -0.01 s (-0.05%)
Estimated CPU 0.55 s 0.42 s -0.13 s (-23.37%)
Peak PSS 80.00 MiB 84.73 MiB +4.73 MiB (+5.91%)
Peak RSS 82.06 MiB 86.74 MiB +4.68 MiB (+5.70%)
Peak threads 18 18 0 (0.00%)
Mismatched sites 0 0 0
Timeout with items 0 0 0

Full HTML, JSON, CSV, logs, and page snapshots: workflow run and full spider-bench-results artifact.

Spider Bench is informational: site failures, missing benchmark reports, failed browser service runs, fixture diagnostics, timing, and performance deltas do not fail the workflow. Build, runner, and artifact infrastructure errors can still fail it.

@github-actions

github-actions Bot commented Aug 16, 2026 •
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Sequential Navigation Soak A/B

✅ HEAD completed the 200-navigation resilience and memory observation.

One browser process, one target, and one CDP session navigate CSDN → SegmentFault → Huaban → example.com repeatedly. This run issued 200 Page.navigate commands per binary.

Common ancestor 3cbc3c2b49 → HEAD 5daa8c068a; benchmark order: head-first; workflow: success.

Session resilience

Metric Base HEAD
Attempted / planned 200 / 200 200 / 200
Direct observable pass 200 / 200 200 / 200
Failures / recovered 0 / 0 0 / 0
Recovery failures 0 0
Lifecycle order violations 0 0
Network order violations 0 0
Wall time 270.6 s 304.3 s

A public-page failure is reported separately from an unrecoverable session. The soak requires all navigation attempts, zero failed recovery, zero lifecycle/network ordering violations, and complete resource evidence.

Process-tree memory

Metric Base HEAD Δ
Boundary samples 200 200 0
Boundary RSS samples 200 200 0
Boundary PSS samples 200 200 0
Periodic peak RSS 257.4 MiB 263.2 MiB +5.8 MiB
Periodic peak PSS 255.4 MiB 260.2 MiB +4.8 MiB
RSS · first 10 avg 201.7 MiB 203.4 MiB +1.7 MiB
RSS · last 10 avg 223.6 MiB 226.5 MiB +3.0 MiB
RSS · last − first window +21.8 MiB +23.1 MiB +1.3 MiB
RSS · warm slope / 100 nav +4.8 MiB +5.0 MiB +0.2 MiB
PSS · first 10 avg 199.0 MiB 200.7 MiB +1.7 MiB
PSS · last 10 avg 221.5 MiB 224.1 MiB +2.6 MiB
PSS · last − first window +22.4 MiB +23.4 MiB +0.9 MiB
PSS · warm slope / 100 nav +5.1 MiB +5.1 MiB +0.1 MiB
Peak file descriptors 55 52 -3
Peak threads 28 28 0

HEAD memory by 50-navigation quarter

HEAD range Avg RSS Final RSS Peak RSS Avg PSS Final PSS Peak FD
1–50 213.5 MiB 196.5 MiB 245.0 MiB 210.8 MiB 194.0 MiB 44
51–100 217.7 MiB 213.1 MiB 253.6 MiB 215.2 MiB 210.6 MiB 44
101–150 219.5 MiB 200.7 MiB 256.1 MiB 217.1 MiB 198.3 MiB 46
151–200 223.5 MiB 219.8 MiB 262.6 MiB 221.1 MiB 217.4 MiB 45

Raw reports and per-navigation boundary samples: workflow run and full sequential-navigation-soak-results artifact.

Public-site timing and memory are observational. Use the A/B deltas and trend shape as evidence, not as a deterministic performance threshold.

@ldm0
ldm0 force-pushed the layout-font-face-set-ready branch from d9af4be to 26c13f0 Compare August 25, 2026 13:19
@ldm0
ldm0 force-pushed the layout-font-face-set-ready branch from 26c13f0 to 5daa8c0 Compare August 25, 2026 15:24
@github-actions

github-actions Bot commented Aug 25, 2026

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Spider Bench A/B

✅ All benchmark browser service runs completed; results are informational.

Public HEAD: 179 / 240 rows; 37 / 48 sites produced rows; 11 unexpected empty sites.

✅ Deterministic fixture diagnostic is clean.

Common ancestor 3cbc3c2b495a → HEAD 5daa8c068a77; benchmark order: head-first; workflow: success.

Public 48-site run · informational

Metric Base HEAD Δ
Run status success success —
Extracted rows / contract 179 / 240 179 / 240 0 (0.00%)
Contract fill 74.58% 74.58% 0.00 pp (0.00%)
Sites with rows 37 / 48 37 / 48 0 (0.00%)
Sites meeting row contract 35 / 48 35 / 48 0 (0.00%)
Unexpected empty sites 11 11 0 (0.00%)
Partial-row sites 2 2 0 (0.00%)
Site outcomes extracted: 36; HTTP error + rows: 1; empty: 7; HTTP error + empty: 1; snapshot error + empty: 3 extracted: 35; HTTP error + rows: 2; empty: 7; HTTP error + empty: 1; snapshot error + empty: 3 —
Observed duration 43.48 s 41.53 s -1.95 s (-4.48%)
Estimated CPU 32.32 s 33.27 s +0.95 s (+2.94%)
Peak PSS 265.84 MiB 272.80 MiB +6.95 MiB (+2.62%)
Peak RSS 268.10 MiB 274.97 MiB +6.88 MiB (+2.56%)
Peak threads 26 27 +1 (+3.85%)
Mismatched sites 0 0 0
Timeout with items 0 0 0
Category rows Base HEAD Δ
news 35 / 40 35 / 40 0
stocks 20 / 40 20 / 40 0
tech 35 / 40 35 / 40 0
sports 27 / 40 27 / 40 0
games 37 / 40 37 / 40 0
life 25 / 40 25 / 40 0

Public-site content, timing, and memory are noisy. This single A/B run reports evidence only; site outcome counts explain missing rows without treating them as a deterministic regression.

CPU and memory timelines

These are bounded 40-point views of the same complete process-tree samples used by the HTML report. CPU uses 100% per occupied logical core; memory lines are RSS first and PSS second when complete PSS samples are available.

Base

xychart-beta
    title "Base CPU"
    x-axis "Elapsed seconds" [1.036, 1.537, 2.537, 3.539, 5.041, 6.043, 7.545, 8.045, 8.547, 9.547, 11.052, 12.053, 13.555, 14.56, 15.561, 17.062, 18.063, 19.57, 20.572, 22.074, 23.075, 24.077, 25.081, 25.581, 26.581, 28.084, 29.088, 30.092, 31.594, 32.595, 34.097, 35.099, 36.601, 37.603, 38.604, 40.108, 41.109, 42.61]
    y-axis "CPU percent" 0 --> 200
    line [4, 0, 79.96, 119.8, 135.9, 131.8, 109.88, 143.82, 133.69, 58.04, 96.02, 83.9, 13.99, 89.26, 59.95, 53.96, 2, 69.86, 31.96, 113.9, 127.79, 117.75, 123.71, 45.94, 54.02, 91.87, 101.87, 11.92, 81.77, 11.99, 59.93, 89.8, 0, 69.81, 13.99, 41.85, 53.93, 119.86]
Loading 
xychart-beta
    title "Base memory: RSS then PSS"
    x-axis "Elapsed seconds" [0.036, 1.036, 1.537, 2.537, 3.539, 5.041, 6.043, 7.545, 8.045, 8.547, 9.547, 11.052, 12.053, 13.555, 14.56, 15.561, 17.062, 18.063, 19.57, 20.572, 22.074, 23.075, 24.077, 25.081, 25.581, 26.581, 28.084, 29.088, 30.092, 31.594, 32.595, 34.097, 35.099, 36.601, 37.603, 38.604, 40.108, 41.109, 42.61, 43.478]
    y-axis "Memory MiB" 0 --> 500
    line [22.64, 84.79, 84.79, 119.44, 154.7, 187.89, 242.2, 208.95, 242.42, 234.13, 219.64, 220.74, 209.3, 176.08, 190.52, 190.11, 178.85, 175.49, 201.8, 175.92, 198.74, 237.82, 249.21, 268.1, 235.91, 203.13, 240.76, 215.79, 193.35, 199.6, 194.88, 202.14, 198.98, 183.66, 189.9, 184.41, 190.49, 182.23, 226.01, 0]
    line [20.7, 82.63, 82.63, 117.28, 152.64, 185.75, 240.04, 206.79, 240.42, 231.97, 217.48, 218.58, 207.66, 173.85, 188.29, 187.89, 176.63, 173.28, 199.59, 173.7, 196.5, 235.86, 247.12, 265.84, 233.66, 200.89, 238.48, 213.6, 191.07, 197.33, 192.78, 199.87, 196.71, 181.39, 187.63, 182.09, 188.16, 179.89, 223.47, 0]
Loading

HEAD

xychart-beta
    title "HEAD CPU"
    x-axis "Elapsed seconds" [1.043, 2.044, 2.543, 3.545, 4.546, 5.046, 6.047, 7.049, 8.051, 9.052, 10.557, 11.557, 12.559, 14.066, 14.567, 15.067, 16.068, 17.571, 18.573, 19.574, 21.076, 22.077, 23.077, 24.079, 25.581, 26.582, 27.583, 29.084, 30.085, 31.086, 32.589, 33.589, 34.59, 35.59, 37.092, 38.093, 39.095, 40.597]
    y-axis "CPU percent" 0 --> 200
    line [51.85, 103.85, 120.15, 89.92, 163.74, 136.09, 135.76, 167.66, 121.68, 107.8, 121, 109.93, 107.82, 31.91, 0, 5.99, 4, 0, 71.79, 79.92, 47.96, 105.86, 67.93, 115.91, 109.73, 76.02, 91.85, 109.93, 69.95, 13.96, 101.94, 13.99, 76.02, 85.9, 2, 39.98, 49.92, 125.81]
Loading 
xychart-beta
    title "HEAD memory: RSS then PSS"
    x-axis "Elapsed seconds" [0.041, 1.043, 2.044, 2.543, 3.545, 4.546, 5.046, 6.047, 7.049, 8.051, 9.052, 10.557, 11.557, 12.559, 14.066, 14.567, 15.067, 16.068, 17.571, 18.573, 19.574, 21.076, 22.077, 23.077, 24.079, 25.581, 26.582, 27.583, 29.084, 30.085, 31.086, 32.589, 33.589, 34.59, 35.59, 37.092, 38.093, 39.095, 40.597, 41.529]
    y-axis "Memory MiB" 0 --> 500
    line [23.26, 121.77, 150.76, 186.73, 200.07, 252.42, 274.97, 230.29, 260.63, 245.68, 247.54, 243.98, 215.87, 190.09, 186.18, 186.18, 174.89, 176.17, 174.51, 197.06, 193.84, 178.63, 228.73, 190.13, 200.52, 269.67, 208.4, 200.52, 255.86, 227.48, 218.79, 214.85, 221.02, 231.83, 224.47, 209.36, 222.12, 208.87, 236.86, 0]
    line [21.4, 119.58, 148.58, 184.56, 197.91, 250.24, 272.8, 228.05, 258.26, 243.32, 245.12, 241.58, 213.41, 187.7, 183.81, 183.83, 172.59, 174, 172.34, 194.76, 191.68, 176.46, 226.56, 187.13, 198.44, 267.58, 206.3, 198.44, 253.74, 225.34, 216.65, 212.72, 219.36, 227.43, 222.34, 207.23, 219.38, 206.73, 234.53, 0]
Loading

Deterministic fixture · diagnostic

The fixture exercises 15 routes: 8 are expected to emit rows and 7 intentionally exercise empty, loading, or timeout behavior.

Metric Base HEAD Δ
Run status success success —
Extracted rows / contract 40 / 40 40 / 40 0 (0.00%)
Contract fill 100.00% 100.00% 0.00 pp (0.00%)
Sites with rows 8 / 15 8 / 15 0 (0.00%)
Sites meeting row contract 15 / 15 15 / 15 0 (0.00%)
Unexpected empty sites 0 0 0
Partial-row sites 0 0 0
Site outcomes extracted: 7; HTTP error + rows: 1; empty: 3; timeout + empty: 4 extracted: 7; HTTP error + rows: 1; empty: 3; timeout + empty: 4 —
Observed duration 19.93 s 19.92 s -0.01 s (-0.06%)
Estimated CPU 0.44 s 0.45 s +0.01 s (+2.26%)
Peak PSS 84.22 MiB 87.38 MiB +3.17 MiB (+3.76%)
Peak RSS 86.34 MiB 89.50 MiB +3.16 MiB (+3.66%)
Peak threads 18 18 0 (0.00%)
Mismatched sites 0 0 0
Timeout with items 0 0 0

Full HTML, JSON, CSV, logs, and page snapshots: workflow run and full spider-bench-results artifact.

Spider Bench is informational: site failures, missing benchmark reports, failed browser service runs, fixture diagnostics, timing, and performance deltas do not fail the workflow. Build, runner, and artifact infrastructure errors can still fail it.

@ldm0 ldm0 closed this Aug 26, 2026
@ldm0
ldm0 deleted the layout-font-face-set-ready branch August 26, 2026 19:13
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