[{"data":1,"prerenderedAt":141},["ShallowReactive",2],{"run:lego-parity-noprof-7500":3,"run-findings:lego-parity-noprof-7500":111},{"run":4,"config":17,"metrics":71,"curve":77,"assets":110},{"id":5,"title":5,"subtitle":6,"eyebrow":7,"date":8,"workspace":9,"commit":10,"tags":11,"verdict":16},"lego-parity-noprof-7500","msplat parity 比較 — Phase 2 default スタック (resident + last_contributor) 7.5k (Phase H pareto の 35.51 dB 点)、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-7500","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","7,500",{"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},35.38779067993164,"3m 1s",false,346860,"6.374802e-3",{"loss":78,"splats":99},{"iters":79,"values":89},[80,81,82,83,84,85,86,87,88],1,1000,2000,3000,4000,5000,6000,7000,7500,[90,91,92,93,94,95,96,97,98],0.5938452482223511,0.055592041462659836,0.014897067099809647,0.008850028738379478,0.00776327820494771,0.007100186310708523,0.006717086303979158,0.006438042037189007,0.006374801509082317,{"iters":100,"values":101},[80,81,82,83,84,85,86,87,88],[102,103,104,105,106,107,108,109,75],5207,8040,174122,270691,309291,326555,336892,343888,{"has_renders":74,"has_splat":74},[112],{"id":113,"title":114,"date":8,"status":115,"polarity":116,"category":117,"axes":118,"tags":120,"task_code":132,"related_runs":133,"delta_psnr":135,"delta_wallclock":136,"rank":137,"verdict":138,"impact_summary":139,"detail_path":140},"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",[80,119],2,[121,122,123,124,125,126,127,128,129,130,131],"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)",[134,5],"lego-parity-noprof-12500","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",1790227324508]