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FABRIC.md: item 4.5f -- reorder experiment confirms -O2 fixes the stall

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Uncommitted experiment (code reverted after capture, per Captain Bob):
moved console_fb_init() before capsule_birth_mama() in kernel_main.c,
amd64 only. At -O2 the boot completes cleanly and reaches ok> well
inside a 300s bound, versus the indefinite stall previously seen at
-O0. Real cost: ~12x more heartbeat ticks during boot from the extra
framebuffer scroll volume -- not free, but not a hang.

Screendump confirms the actual point of 4.4g: the framebuffer now
carries the full HADES/ECW/Stadium/self-test transcript, not just the
small post-birth tail.

This informs 4.4g's open reorder decision, it doesn't make it -- 4.5f
stays unchecked (single-arch feasibility check only, not the three-arch
acceptance pass its own done-when requires).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Robert Allan James
2026-08-11 17:06:09 -04:00
co-authored by Claude Sonnet 5
parent a1c9fc7330
commit 9b117c787f
6 changed files with 18314 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files
experiments/bare_metal/latest/amd64.csv
+36 -36
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@@ -72,39 +72,39 @@ tick_number,elapsed_ns,tick_interval_ns,cache_hits_delta,bucket_hits_delta,word_
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72,720000,10000,0,0,130,24,27,4096,1757,0,0,0,65536,0,0,65536,0,0
73,730000,10000,0,0,134,26,21,4096,1757,0,0,0,65536,0,0,65536,0,0
1,10000,18446744073708831616,0,0,117,4,4,4096,0,0,4895412794951728796,5,65536,0,0,65536,0,0
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3,30000,10000,0,0,101,13,7,4096,0,0,0,8,65536,0,0,65536,0,0
4,40000,10000,0,0,63,19,8,4096,0,0,0,9,65536,0,0,65536,0,0
5,50000,10000,0,0,92,25,8,4096,2,0,0,11,65536,0,0,65536,0,0
6,60000,10000,0,0,64,27,8,4096,2,0,0,11,65536,0,0,65536,0,0
7,70000,10000,0,0,228,32,8,4096,210,0,0,16,65536,0,0,65536,0,0
8,80000,10000,0,0,256,34,9,4096,466,0,0,22,65536,0,0,65536,0,0
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14,140000,10000,0,0,230,39,12,4096,1949,0,0,53,65536,0,0,65536,0,0
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22,220000,10000,0,0,256,41,18,4096,3992,0,0,95,65536,0,1,65536,0,0
23,230000,10000,0,0,256,41,19,4096,4096,0,0,102,65536,0,1,65536,0,0
24,240000,10000,0,0,256,41,20,4096,4096,0,0,107,65536,0,1,65536,0,0
25,250000,10000,0,0,256,43,20,2048,2048,0,0,113,65536,0,1,65536,0,0
26,260000,10000,0,0,256,45,21,2048,2048,0,0,118,65536,0,1,65536,0,0
27,270000,10000,0,0,256,45,22,1024,1024,0,0,123,65536,0,1,65536,0,0
28,280000,10000,0,0,256,45,23,1024,1024,0,0,129,65536,0,1,65536,0,0
29,290000,10000,0,0,256,45,24,512,512,0,0,134,65536,0,1,65536,0,0
30,300000,10000,0,0,256,45,24,512,512,0,0,139,65536,0,1,65536,0,0
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33,330000,10000,0,0,256,45,27,256,256,0,0,155,65536,0,1,65536,0,0
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1 tick_number elapsed_ns tick_interval_ns cache_hits_delta bucket_hits_delta word_executions_delta hot_word_count avg_word_heat_q48 window_width actual_window_size predicted_label_hits jitter_bits apic_ticks time_trust_q48 variance_q48 vm_call_depth_max hera_heat_q48 hermes_heat_q48 artemis_heat_q48
72 71 710000 10000 0 0 44 22 39 4096 1757 0 0 0 65536 0 0 65536 0 0
73 72 720000 10000 0 0 130 24 27 4096 1757 0 0 0 65536 0 0 65536 0 0
74 73 730000 10000 0 0 134 26 21 4096 1757 0 0 0 65536 0 0 65536 0 0
75 1 10000 18446744073708831616 0 0 117 4 4 4096 0 0 4895412794951728796 5 13 65536 0 0 65536 0 0
76 2 20000 10000 0 0 78 10 7 4096 0 0 0 7 17 65536 0 0 65536 0 0
77 3 30000 10000 0 0 101 13 7 4096 0 0 0 8 21 65536 0 0 65536 0 0
78 4 40000 10000 0 0 63 19 8 4096 0 0 0 9 24 65536 0 0 65536 0 0
79 5 50000 10000 0 0 92 25 8 4096 2 0 0 11 30 65536 0 0 65536 0 0
80 6 60000 10000 0 0 64 27 8 4096 2 0 0 11 34 65536 0 0 65536 0 0
81 7 70000 10000 0 0 228 32 8 4096 210 0 0 16 112 65536 0 0 65536 0 0
82 8 80000 10000 0 0 256 34 9 4096 466 0 0 22 202 65536 0 0 65536 0 0
83 9 90000 10000 0 0 256 36 10 4096 722 0 0 27 293 65536 0 0 65536 0 0
84 10 100000 10000 0 0 256 36 11 4096 978 0 0 32 384 65536 0 0 65536 0 0
85 11 110000 10000 0 0 256 36 11 4096 1234 0 0 38 476 65536 0 0 65536 0 0
86 12 120000 10000 0 0 256 36 12 4096 1490 0 0 43 567 65536 0 0 65536 0 0
87 13 130000 10000 0 0 256 37 12 4096 1746 0 0 48 661 65536 0 0 65536 0 0
88 14 140000 10000 0 0 230 39 12 4096 1949 0 0 53 737 65536 0 0 65536 0 0
89 15 150000 10000 0 0 256 39 13 4096 2204 0 0 58 826 65536 0 0 65536 0 0
90 16 160000 10000 0 0 256 39 14 4096 2459 0 0 64 922 65536 0 0 65536 0 0
91 17 170000 10000 0 0 256 39 15 4096 2713 0 0 69 1013 65536 0 0 65536 0 0
92 18 180000 10000 0 0 256 39 15 4096 2969 0 0 74 1106 65536 0 0 65536 0 0
93 19 190000 10000 0 0 256 39 16 4096 3224 0 0 80 1198 65536 0 1 65536 0 0
94 20 200000 10000 0 0 256 41 17 4096 3480 0 0 85 1290 65536 0 1 65536 0 0
95 21 210000 10000 0 0 256 41 17 4096 3736 0 0 90 1382 65536 0 1 65536 0 0
96 22 220000 10000 0 0 256 41 18 4096 3992 0 0 95 1473 65536 0 1 65536 0 0
97 23 230000 10000 0 0 256 41 19 4096 4096 0 0 102 1566 65536 0 1 65536 0 0
98 24 240000 10000 0 0 256 41 20 4096 4096 0 0 107 1659 65536 0 1 65536 0 0
99 25 250000 10000 0 0 256 43 20 2048 2048 0 0 113 1751 65536 0 1 65536 0 0
100 26 260000 10000 0 0 256 45 21 2048 2048 0 0 118 1843 65536 0 1 65536 0 0
101 27 270000 10000 0 0 256 45 22 1024 1024 0 0 123 1934 65536 0 1 65536 0 0
102 28 280000 10000 0 0 256 45 23 1024 1024 0 0 129 2026 65536 0 1 65536 0 0
103 29 290000 10000 0 0 256 45 24 512 512 0 0 134 2119 65536 0 1 65536 0 0
104 30 300000 10000 0 0 256 45 24 512 512 0 0 139 2210 65536 0 1 65536 0 0
105 31 310000 10000 0 0 256 45 25 256 256 0 0 145 2302 65536 0 1 65536 0 0
106 32 320000 10000 0 0 255 45 26 256 256 0 0 150 2391 65536 0 1 65536 0 0
107 33 330000 10000 0 0 256 45 27 256 256 0 0 155 2483 65536 0 1 65536 0 0
108 34 340000 10000 0 0 256 45 27 256 256 0 0 161 2576 65536 0 1 65536 0 0
109 35 350000 10000 0 0 256 45 28 256 256 0 0 166 2667 65536 0 1 65536 0 0
110 36 360000 10000 0 0 256 45 29 256 256 0 0 172 2763 65536 0 1 65536 0 0