native macOS codings agent orchestrator prowl.onev.cat
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Swift
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@testable import Prowl
extension PerformanceBenchmarks { /// Pins the #650/#657 fragment cache: a poll whose transcript tails are /// unchanged must not pay tail reads, JSON parsing, and normalization again. /// Cold rounds rebuild a fresh `TranscriptFragmentCache` per call — the /// pre-#650 per-poll cost — while warm rounds reuse one cache the way /// `AgentSessionResolver` does across its 300 ms polls. @Suite struct SessionScoringBenchmarks { @Test func warmFragmentCacheOutpacesColdReparsingPerPoll() throws { let fileManager = FileManager.default let tempRoot = fileManager.temporaryDirectory.appending(path: UUID().uuidString) defer { try? fileManager.removeItem(at: tempRoot) } try fileManager.createDirectory(at: tempRoot, withIntermediateDirectories: true)
let marker = "the quick brown benchmark fox jumps over the lazy resolver dog" let sessionCount = 6 let linesPerTranscript = BenchmarkMeasurement.isFullMode ? 400 : 100 var candidates: [AgentSessionCandidate] = [] for sessionIndex in 0..<sessionCount { let url = tempRoot.appending(path: "session\(sessionIndex).jsonl") var lines: [String] = [] for lineIndex in 0..<linesPerTranscript { lines.append(#"{"content": "セッション\#(sessionIndex)の本文テキスト行\#(lineIndex)、画面には現れない内容です。"}"#) } if sessionIndex == 0 { lines.append(#"{"content": "\#(marker)"}"#) } try lines.joined(separator: "\n").write(to: url, atomically: true, encoding: .utf8) let modifiedAt = (try? url.resourceValues(forKeys: [.contentModificationDateKey]).contentModificationDate) ?? .now candidates.append( AgentSessionCandidate( session: AgentSession(id: "session\(sessionIndex)", transcriptPath: url, source: .recentFile), modifiedAt: modifiedAt ) ) } let activeText = " \(marker) \n prompt>"
var coldCache = TranscriptFragmentCache() let coldWinner = AgentSessionFingerprintMatcher.bestMatch( activeText: activeText, candidates: candidates, fragments: &coldCache ) let warmBox = FragmentCacheBox() let warmWinner = AgentSessionFingerprintMatcher.bestMatch( activeText: activeText, candidates: candidates, fragments: &warmBox.cache ) #expect(coldWinner?.session.id == "session0") #expect(warmWinner?.session.id == coldWinner?.session.id)
let medians = BenchmarkMeasurement.interleavedMedians( reference: { var cache = TranscriptFragmentCache() _ = AgentSessionFingerprintMatcher.bestMatch( activeText: activeText, candidates: candidates, fragments: &cache ) }, shipped: { _ = AgentSessionFingerprintMatcher.bestMatch( activeText: activeText, candidates: candidates, fragments: &warmBox.cache ) } ) BenchmarkMeasurement.report(suite: "SessionScoring", name: "warm-vs-cold", medians: medians) #expect( BenchmarkMeasurement.ratio(medians) >= 3, "warm fragment cache was only \(BenchmarkMeasurement.ratio(medians))x cold re-parsing" ) } }}
/// `bestMatch` takes the cache `inout`; a closure cannot capture `inout` state,/// so the warm cache lives in a reference box instead.private final class FragmentCacheBox { var cache = TranscriptFragmentCache()}