perf(autoFIPC): characterize direct est-column assignment - #285
perf(autoFIPC): characterize direct est-column assignment#285seonghobae wants to merge 4 commits into
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- Change 2D data.frame indexing (`NewScaleParms[NewScaleParms$item == 'GROUP', "est"] <- FALSE`) to direct 1D vector assignment (`NewScaleParms$est[NewScaleParms$item == 'GROUP'] <- FALSE`) - Add inline Bolt comments indicating the optimization - Update `.jules/bolt.md` with learning and action items
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drafts: true📝 WalkthroughWalkthrough
ChangesautoFIPC 열 할당 최적화
Estimated code review effort: 1 (Trivial) | ~5 minutes Merge Risk: ⚪ Minimal · up to The change is localized to a performance-oriented assignment update, with the remaining concern limited to refining documentation claims about complexity and dispatch behavior. No actionable merge-blocking risk remains. Possibly related PRs
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| NewScaleParms$est[NewScaleParms$item == 'GROUP'] <- FALSE | ||
| OldScaleParms$est[OldScaleParms$item == 'GROUP'] <- FALSE | ||
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| NewScaleParms[NewScaleParms$name == "COV_11", "est"] <- TRUE | ||
| OldScaleParms[OldScaleParms$name == "COV_11", "est"] <- TRUE | ||
| NewScaleParms$est[NewScaleParms$name == "COV_11"] <- TRUE | ||
| OldScaleParms$est[OldScaleParms$name == "COV_11"] <- TRUE | ||
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| if (itemtype == 'Rasch') { | ||
| NewScaleParms[NewScaleParms$name == "a1", "est"] <- FALSE | ||
| OldScaleParms[OldScaleParms$name == "a1", "est"] <- FALSE | ||
| NewScaleParms$est[NewScaleParms$name == "a1"] <- FALSE | ||
| OldScaleParms$est[OldScaleParms$name == "a1"] <- FALSE |
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📝 Info: Vector assignment preserves prior behavior
The conversions at R/aFIPC.R:603-611 and R/aFIPC.R:881-882 are behavior-preserving: item/name from mod2values are character columns, so the logical index has no NAs, and the est column already exists.
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Actionable comments posted: 1
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Inline comments:
In @.jules/bolt.md:
- Around line 19-21: Update the learning and action text around the direct
vector-assignment pattern to remove the near-O(1) and guaranteed
dispatch-overhead claims. State that both approaches require O(n)
condition/index processing and that data-frame assignment dispatch may still
occur, then describe any performance difference only when supported by
representative benchmarks across relevant R versions.
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Closed after evidence-preserving repair
Protected/base remains
master@f87c2324f1686135e57d8730c1b0b9420874f300. Final exact head is9407656561d89e85fca87a3a0b642479ddcbef4a, an ordinary non-force child of the reviewed lineage.Fresh review confirmed that this branch retained no representative/right-cleared
autoFIPC()workload, warm-up/repetition policy, median/p95 timing, allocation/GC evidence, or CPU profile showing that directestcolumn assignment is material to calibration latency. The added equivalence fixture characterized the candidate implementation but did not establish a buyer-visible performance gap that justifies carrying an otherwise unnecessary production experiment.Normal descendant
940765656...restoresR/aFIPC.Rto the protected blob and removes the candidate-only equivalence test. Fresh protected-base compare isahead 4 / behind 0 / files=[]; there is no remaining production, test, fixture, contract, documentation, or benchmark delta to preserve. Closing is therefore the explicit no-valid-delta exception, not queue reduction by discarding work.A future optimization must begin with protected-vs-candidate evidence on the actual
autoFIPC()parameter-update path under the same R/mirt/runtime/CPU using representative/right-cleared form data, with repeated median/p95, allocation/GC and CPU profile while preserving psychometric output and estimator contracts. No synthetic benchmark, source-neutral CI retry, gate weakening, force push, destructive rebase, or unmeasured speedup claim.