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Neil
8cf0e81ced
* fix(perf): calibrate report budgets without masking latency stalls * docs(perf): record historical evidence for report limits
38 lines
1.2 KiB
JavaScript
38 lines
1.2 KiB
JavaScript
// Historical measurements and rationale: docs/reference/terminal-perf-report-budgets.md.
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const MIB = 1024 * 1024
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const DEFAULT_BUDGETS = {
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median: 25,
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worst: 300,
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revisit: 300,
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maxTimerDrift: 150,
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scroll: 150,
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restore: 1_000,
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rendererQueuedChars: 2 * MIB,
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rendererPeakQueuedChars: 2 * MIB,
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rendererDroppedBacklogs: 0
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}
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export function reportBudgetsForScenario(scenario) {
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const budgets = { ...DEFAULT_BUDGETS }
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// Preserve the existing report gate's injected-redraw drift allowance.
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if (
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scenario === 'opencode-same-workspace-typing' ||
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scenario === 'opencode-cross-workspace-typing' ||
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scenario.startsWith('opencode-scale-same-workspace-') ||
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scenario.startsWith('opencode-scale-cross-workspace-')
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) {
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budgets.maxTimerDrift = 3_500
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}
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if (
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scenario === 'opencode-main-pressure-active-typing' ||
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scenario.startsWith('opencode-main-pressure-active-typing-') ||
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scenario === 'opencode-main-pressure-worktree-revisit-typing' ||
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scenario === 'opencode-main-pressure-worktree-revisit-drain'
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) {
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// Only the transient peak gets headroom; current backlog must still drain below 2 MiB.
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budgets.rendererPeakQueuedChars = 3.5 * MIB
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}
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return budgets
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}
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