[{"data":1,"prerenderedAt":156},["ShallowReactive",2],{"run:lego-parity-noprof-12500":3,"run-findings:lego-parity-noprof-12500":126},{"run":4,"config":17,"metrics":71,"curve":77,"assets":125},{"id":5,"title":5,"subtitle":6,"eyebrow":7,"date":8,"workspace":9,"commit":10,"tags":11,"verdict":16},"lego-parity-noprof-12500","msplat parity 比較 — Phase 2 default スタック (resident + last_contributor) 12.5k、profile=false の wallclock 実測","Run summary · 2026-08 msplat gap sweep Phase 3 (parity 再計測)","2026-08-16","splat","2fb7554",[12,13,14,15],"p2-gap-sweep","msplat-parity","no-profile","lego-12500","partial",[18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,68],{"key":19,"value":20},"dataset","\u002FUsers\u002Fotkrickey\u002Fdev\u002F3dgs-workspace\u002Fdatasets\u002Fnerf_synthetic\u002Flego",{"key":22,"value":23},"gt_convention","Premultiplied",{"key":25,"value":26},"iterations","12,500",{"key":28,"value":29},"seed","42",{"key":31,"value":32},"capacity","1,000,000 splats",{"key":34,"value":35},"sh_degree","3",{"key":37,"value":38},"loss","L1Ssim",{"key":40,"value":41},"lambda","0.200",{"key":43,"value":44},"ssim","window=7 sigma=1",{"key":46,"value":47},"backend.backward","Simd",{"key":49,"value":50},"backend.loss_path","Gpu",{"key":52,"value":53},"backend.emit_pairs","Original",{"key":55,"value":56},"backend.forward","F32",{"key":58,"value":59},"backend.dispatch","PerStage",{"key":61,"value":62},"backend.radix_scan","Cpu",{"key":64,"value":65},"backend.target_cache","true",{"key":67,"value":65},"backend.shader_fast_math",{"key":69,"value":70},"os_build","26.5.2 (25F84)",{"psnr":72,"wallclock":73,"wallclock_regress":74,"splats":75,"final_loss":76},36.13956832885742,"6m 25s",false,412688,"5.575519e-3",{"loss":78,"splats":109},{"iters":79,"values":94},[80,81,82,83,84,85,86,87,88,89,90,91,92,93],1,1000,2000,3000,4000,5000,6000,7000,8000,9000,10000,11000,12000,12500,[95,96,97,98,99,100,101,102,103,104,105,106,107,108],0.5938453674316406,0.054837245494127274,0.014642173424363136,0.008536597713828087,0.0076186517253518105,0.0067626661621034145,0.00623989338055253,0.006016847677528858,0.005843955557793379,0.005768257193267345,0.00565370824187994,0.005557734053581953,0.005468199960887432,0.0055755190551280975,{"iters":110,"values":111},[80,81,82,83,84,85,86,87,88,89,90,91,92,93],[112,113,114,115,116,117,118,119,120,121,122,123,124,75],5207,8215,181928,299145,351723,378005,392878,401400,406314,408634,409680,410647,411917,{"has_renders":74,"has_splat":74},[127],{"id":128,"title":129,"date":8,"status":130,"polarity":131,"category":132,"axes":133,"tags":135,"task_code":147,"related_runs":148,"delta_psnr":150,"delta_wallclock":151,"rank":152,"verdict":153,"impact_summary":154,"detail_path":155},"p2-msplat-parity-lego","P2 msplat parity — 同日等価比較で msplat 30K = 167.7s \u002F 36.5 dB、gap は 12.5k で 2.10× (matched-wallclock 7.5k は 1.08× で brush +0.94 dB)","stable","mixed","experiment",[80,134],2,[136,137,138,139,140,141,142,143,144,145,146],"gap-sweep","phase-3","msplat","parity","baseline","cross-eval","eval-convention","thermal-interleave","lego","m4-max","thesis-ready","2026-08 msplat gap sweep Phase 3 (parity 再計測)",[5,149],"lego-parity-noprof-7500","brush convention (同一 evaluator): 本実装 12.5k +1.79 dB \u002F 7.5k +0.94 dB (vs msplat 30K q8 34.47)。white-bg convention: msplat +1.09 dB (36.28 vs 本実装 12.5k 35.19)","msplat 30K 167.7s vs 本実装 12.5k 352.3s = **2.10×** (両者 profile なし・同日実測)。matched-wallclock: 7.5k 181.4s = 1.08×。従来の 1.53× (spike 値 220s 基準) は撤回","high","parity-established-gap-2.10x-convention-coupled-psnr","gap sweep の公式 gap 数値を \u003Cstrong>同日・同一条件の実測で確定\u003C\u002Fstrong>: Lego 12.5k vs msplat 30K の wallclock gap は \u003Cstrong>2.10×\u003C\u002Fstrong> (352.3s vs 167.7s、両者 profiling なし) — Phase 2 の 1.53× は spike の古い msplat 値 (219.8s) 起因の過小評価だった。一方 \u003Cstrong>matched-wallclock 断面 (本実装 7.5k = 181.4s、msplat の 1.08×)\u003C\u002Fstrong> では brush convention の同一 evaluator cross-eval で本実装が \u003Cstrong>+0.94 dB\u003C\u002Fstrong> (35.41 vs 34.47)。PSNR 比較は eval convention に強く依存し (white-bg では msplat +1.09 dB)、p1-a-3 の「訓練\u002F評価 convention coupling」を第三者実装との比較で再実証した。msplat の native 品質が spike 比 +1.05 dB 向上した主因は今回の対称条件 (同一 culled init.ply 5207 pts・train 100 view 全量・常時フル解像度) にあり、msplat 側の条件を今回初めて本実装と揃えた結果。卒論 §5 の direct comparison 表はこの数値で置き換える。","\u002Ffindings\u002Fp2-msplat-parity-lego\u002F",1790227324507]