perf(qwen38): various DFlash2 optimizations concurrency C1-C5 - #659

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Graffioh wants to merge 28 commits into

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Graffioh:codex/qwen38-gdn-replay-tile

Commits on Aug 24, 2026

concurrency: add ordered burst and staged slot commits
Graffioh
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58ca750
concurrency: add fixed Qwen DFlash2 chain path
Graffioh
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24be6f5
fix(concurrency): correct speculative backend contracts
Graffioh
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3d2996a
fix(concurrency): make tree commits fail closed
Graffioh
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3ce1b73
fix(concurrency): stabilize DFlash2 promotion
Graffioh
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f798e1c
fix(qwen35): stabilize tree verification through C6
Graffioh
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2c2673a
fix(qwen35): preserve DFlash2 sliding-window pattern
Graffioh
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e23f5a5
fix: guard selector and GPU backend edge cases
Graffioh
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ed30620
fix(concurrency): harden speculative state boundaries
Graffioh
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514ed99

Commits on Aug 25, 2026

Commits on Aug 26, 2026

fix(concurrency): tighten GDN backend cleanup contracts
Graffioh
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39bc748
perf(qwen35): batch draft projections across lanes for concurrency
Graffioh
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b7589bb
refactor(qwen35): rename GDN journal to replay log
Graffioh
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2a91f93
refactor(qwen35): skip standalone graphs for batched draft state
Graffioh
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003b06a
ci: build renamed GDN replay test
Graffioh
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4d89dcd
ci: run renamed GDN replay preflight
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6b21192
perf(draft): batch append projections across lanes
Graffioh
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dcd2fe9
chore(draft): trim append API comments
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d5770a4
perf(draft): pack dynamic-conv projections across lanes
Graffioh
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70cdc88
perf(gdn): tile replay transition loads
Graffioh
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498ad21
perf(qwen35): skip redundant active GDN head repeats
Graffioh
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dbe778e
perf(qwen35): use exact C5 draft shape
Graffioh
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f108bbe
perf(qwen35): retain stable paged target graphs
Graffioh
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8ab1b9b
docs: mark PR 651 performance handoff status
Graffioh
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62d051e