mirror of
https://github.com/NousResearch/hermes-agent.git
synced 2026-05-08 03:01:47 +00:00
b1c49d5e73
24 files, -319 LoC. Behaviour preserved, 369/369 tests green. - hermes-ink caches: shared lruEvict helper for the four parallel LRU caches (stringWidth, wrapText, sliceAnsi, lineWidth); touch-on-read stays inlined per cache; tightened output.ts skip-slice fast path. - wheelAccel: trimmed provenance header, collapsed env parsing, ternary dispatch in computeWheelStep. - perfPane: folded ensureLogDir into once-flag, spread-with-overrides for fastPath/phases instead of full rebuilds. - env: extracted truthy() (used 4×). - virtualHeights: collapsed user/diff/slash height bumps; trail+todos estimate. - useInputHandlers: scrollIdleTimer cleanup on unmount, ?? undefined shorthand. - useMainApp: dropped dead liveTailVisible IIFE and liveProgress indirection. - appLayout, markdown, messageLine, entry: vertical rhythm, dropped narration comments, inlined one-shot vars. - fix: empty catch blocks → /* best-effort */ for no-empty lint.
61 lines
1.7 KiB
TypeScript
61 lines
1.7 KiB
TypeScript
import { evictInkCaches } from '@hermes/ink'
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import { type HeapDumpResult, performHeapDump } from './memory.js'
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export type MemoryLevel = 'critical' | 'high' | 'normal'
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export interface MemorySnapshot {
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heapUsed: number
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level: MemoryLevel
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rss: number
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}
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export interface MemoryMonitorOptions {
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criticalBytes?: number
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highBytes?: number
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intervalMs?: number
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onCritical?: (snap: MemorySnapshot, dump: HeapDumpResult | null) => void
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onHigh?: (snap: MemorySnapshot, dump: HeapDumpResult | null) => void
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}
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const GB = 1024 ** 3
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export function startMemoryMonitor({
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criticalBytes = 2.5 * GB,
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highBytes = 1.5 * GB,
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intervalMs = 10_000,
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onCritical,
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onHigh
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}: MemoryMonitorOptions = {}): () => void {
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const dumped = new Set<Exclude<MemoryLevel, 'normal'>>()
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const tick = async () => {
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const { heapUsed, rss } = process.memoryUsage()
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const level: MemoryLevel = heapUsed >= criticalBytes ? 'critical' : heapUsed >= highBytes ? 'high' : 'normal'
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if (level === 'normal') {
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return void dumped.clear()
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}
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if (dumped.has(level)) {
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return
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}
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// Prune Ink content caches before dump/exit — half on 'high' (recoverable),
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// full on 'critical' (post-dump RSS reduction, keeps user running).
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evictInkCaches(level === 'critical' ? 'all' : 'half')
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dumped.add(level)
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const dump = await performHeapDump(level === 'critical' ? 'auto-critical' : 'auto-high').catch(() => null)
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const snap: MemorySnapshot = { heapUsed, level, rss }
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;(level === 'critical' ? onCritical : onHigh)?.(snap, dump)
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}
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const handle = setInterval(() => void tick(), intervalMs)
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handle.unref?.()
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return () => clearInterval(handle)
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}
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