[{"data":1,"prerenderedAt":165},["ShallowReactive",2],{"run:counter-12500-noprof-r2":3,"run-findings:counter-12500-noprof-r2":136},{"run":4,"config":18,"metrics":81,"curve":87,"assets":135},{"id":5,"title":5,"subtitle":6,"eyebrow":7,"date":8,"workspace":9,"commit":10,"tags":11,"verdict":17},"counter-12500-noprof-r2","counter session step 4: msplat との GPU 電力 interleave 比較用の本実装 12.5k (profile=false)。同時に当日の S2 gate baseline wallclock も兼ねる","Run summary · 2026-08 msplat gap sweep Phase 3 (parity 再計測)","2026-08-16","splat","56519c4",[12,13,14,15,16],"p2-counter-session","power","msplat-interleave","no-profile","lego-12500","partial",[19,22,25,28,31,34,37,40,43,46,49,52,55,58,61,64,67,70,73,76,78],{"key":20,"value":21},"dataset","\u002FUsers\u002Fotkrickey\u002Fdev\u002F3dgs-workspace\u002Fdatasets\u002Fnerf_synthetic\u002Flego",{"key":23,"value":24},"gt_convention","Premultiplied",{"key":26,"value":27},"iterations","12,500",{"key":29,"value":30},"seed","42",{"key":32,"value":33},"capacity","1,000,000 splats",{"key":35,"value":36},"sh_degree","3",{"key":38,"value":39},"loss","L1Ssim",{"key":41,"value":42},"lambda","0.200",{"key":44,"value":45},"ssim","window=7 sigma=1",{"key":47,"value":48},"backend.backward","Simd",{"key":50,"value":51},"backend.loss_path","Gpu",{"key":53,"value":54},"backend.emit_pairs","Original",{"key":56,"value":57},"backend.forward","F32",{"key":59,"value":60},"backend.dispatch","PerStage",{"key":62,"value":63},"backend.radix_scan","Cpu",{"key":65,"value":66},"backend.binning","Resident",{"key":68,"value":69},"backend.tile_sort","GlobalRadix",{"key":71,"value":72},"backend.submission","Chained",{"key":74,"value":75},"backend.target_cache","true",{"key":77,"value":75},"backend.shader_fast_math",{"key":79,"value":80},"os_build","26.5.2 (25F84)",{"psnr":82,"wallclock":83,"wallclock_regress":84,"splats":85,"final_loss":86},36.12981414794922,"3m 39s",false,407912,"5.547716e-3",{"loss":88,"splats":119},{"iters":89,"values":104},[90,91,92,93,94,95,96,97,98,99,100,101,102,103],1,1000,2000,3000,4000,5000,6000,7000,8000,9000,10000,11000,12000,12500,[105,106,107,108,109,110,111,112,113,114,115,116,117,118],0.5938446521759033,0.05464654415845871,0.014416774734854698,0.008459801785647869,0.007610371336340904,0.00675611849874258,0.006361076608300209,0.00596965104341507,0.005823373328894377,0.005709222052246332,0.005609425716102123,0.005556951276957989,0.005461208522319794,0.005547715816646814,{"iters":120,"values":121},[90,91,92,93,94,95,96,97,98,99,100,101,102,103],[122,123,124,125,126,127,128,129,130,131,132,133,134,85],5207,8242,181763,298197,350252,375397,389415,397202,401323,403599,404969,405823,407139,{"has_renders":84,"has_splat":84},[137],{"id":12,"title":138,"date":8,"status":139,"polarity":140,"category":141,"axes":142,"tags":144,"task_code":155,"related_runs":156,"delta_psnr":159,"delta_wallclock":160,"rank":161,"verdict":162,"impact_summary":163,"detail_path":164},"P2 counter session — default スタックの GPU busy% は 68〜69% で確定、H1 (bubble) 単独で W 比 0.70 を説明。H3 (DVFS) は棄却、卒論の「エネルギー 0.7-0.8× で勝つ」は不成立 (GPU energy 0.90×・package energy 1.06×)","stable","mixed","experiment",[90,143],3,[145,146,147,13,148,149,150,151,152,153,154],"counter-session","gpu-busy","ioreport","energy","dvfs","p-state","msplat","m4-max","thesis-ready","negative","2026-08 1× 工程表 v2 — AC 復帰後 計測 queue #1",[157,158,5],"counter-12500-prof","counter-12500-noprof-r1","本 session の 12.5k n=3 self-eval (premultiplied convention) mean 36.174 dB (36.187 \u002F 36.130 \u002F 36.204)、profile=true 1 本 36.262 dB。msplat 30K native val (white) n=4 mean 36.539 dB。**convention 依存のため直接比較しない** (p2-msplat-parity-lego の cross-eval 表を参照)","12.5k profile=false n=3 mean **216.12s** (219.35 \u002F 222.71 \u002F 206.31) — W2 gate の 219.51s と同水準 (日内 drift 内)。msplat 30K n=4 mean **169.77s** (176.09 \u002F 161.37 \u002F 173.93 \u002F 167.68)。等価 gap = **1.273×**","high","busy-68to69pct-H1-only-H3-refuted-energy-claim-withdrawn","1× 工程表 v2 が「AC 復帰後 queue #1」に置いていた counter session を実施し、3 問すべてを実測で閉じた。\u003Cstrong>(1) busy% 論争は 68〜69% で決着\u003C\u002Fstrong> — bench (final 68.9% \u002F iter5000 67.5%、n=3、cb_dropped=0・overlap 1.00×) と 12.5k full run の補正値 (148.169s busy ÷ 同日 profile=false wallclock 216.12s = 68.6%) が一致。\u003Cstrong>(2) H1\u002FH2\u002FH3 の verdict は「H1 単独で説明・H2 null・H3 棄却」\u003C\u002Fstrong>。W 比 0.704 ≈ busy 比 0.689 なので activity factor の差 (H2) を持ち出す必要がなく、P-state residency は本実装が P15 に 97.6〜98.0% (bench) 居座る一方、msplat の方が電力上限で P10〜P14 に落ちる — \u003Cstrong>DVFS で損をしているのは msplat であって本実装ではない\u003C\u002Fstrong>。\u003Cstrong>(3) 卒論 positive の撤回\u003C\u002Fstrong>: roadmap v2 が期待した「エネルギー 0.7-0.8× = W\u002FPSNR 効率で勝つ」は\u003Cstrong>不成立\u003C\u002Fstrong>。W が 0.70× でも wallclock が 1.273× 長いので、完走までの GPU energy は \u003Cstrong>0.897×\u003C\u002Fstrong> (10% 得) に留まり、CPU を含む package energy では \u003Cstrong>1.062×\u003C\u002Fstrong> (6% 損) に反転する。energy 0.75× を達成するには W 比 0.573× が必要で、実測 0.704× は energy 等価点 (0.764×) の外側。\u003Cstrong>結論: 卒論 §5 で電力効率を主張軸にはできない。正しい主張は「同じ package 電力枠でより長く回る = 熱設計に優しい」ではなく、単純に『S2\u002FS3 で bubble を潰せば W も energy も改善する余地が 31% 残っている』という engineering debt の定量化。\u003C\u002Fstrong>","\u002Ffindings\u002Fp2-counter-session\u002F",1790227323336]