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perf: implement phase 1-3 performance optimizations

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Add implementation plans and code structure analysis for a 3-phase
performance optimization effort. Refactor core modules to reduce
timer overhead, consolidate regex usage, extract exec timeout config,
add debouncer utility, and streamline server/schema validation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
arkon
2026-02-28 17:39:44 +01:00
co-authored by Claude Opus 4.6
parent 562b14ab61
commit e0a2774d37
26 changed files with 4443 additions and 624 deletions
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src/state-store.ts
+12 -25
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@@ -28,7 +28,7 @@ import {
TokenStats,
TokenUsageEntry,
} from './types.js';
import { MAX_SESSION_TOKENS } from './utils/index.js';
import { Debouncer, MAX_SESSION_TOKENS } from './utils/index.js';
/** Debounce delay for batching state writes (ms) */
const SAVE_DEBOUNCE_MS = 500;
@@ -60,7 +60,7 @@ const MAX_CONSECUTIVE_FAILURES = 3;
export class StateStore {
private state: AppState;
private filePath: string;
private saveTimeout: NodeJS.Timeout | null = null;
private saveDeb = new Debouncer(SAVE_DEBOUNCE_MS);
private dirty: boolean = false;
private dirtySessions = new Set<string>();
private cachedSessionJsons = new Map<string, string>();
@@ -68,7 +68,7 @@ export class StateStore {
// Inner state storage (separate from main state to reduce write frequency)
private ralphStates: Map<string, RalphSessionState> = new Map();
private ralphStatePath: string;
private ralphStateSaveTimeout: NodeJS.Timeout | null = null;
private ralphStateSaveDeb = new Debouncer(SAVE_DEBOUNCE_MS);
private ralphStateDirty: boolean = false;
// Circuit breaker for save failures (prevents hammering disk on persistent errors)
@@ -150,14 +150,12 @@ export class StateStore {
*/
save(): void {
this.dirty = true;
if (this.saveTimeout) {
return; // Already scheduled
}
this.saveTimeout = setTimeout(() => {
if (this.saveDeb.isPending) return; // Already scheduled
this.saveDeb.schedule(() => {
this.saveNowAsync().catch((err) => {
console.error('[StateStore] Async save failed:', err);
});
}, SAVE_DEBOUNCE_MS);
});
}
/**
@@ -242,10 +240,7 @@ export class StateStore {
}
private async _doSaveAsync(): Promise<void> {
if (this.saveTimeout) {
clearTimeout(this.saveTimeout);
this.saveTimeout = null;
}
this.saveDeb.cancel();
if (!this.dirty) {
return;
}
@@ -332,10 +327,7 @@ export class StateStore {
* Prefer saveNowAsync() for normal operation.
*/
saveNow(): void {
if (this.saveTimeout) {
clearTimeout(this.saveTimeout);
this.saveTimeout = null;
}
this.saveDeb.cancel();
if (!this.dirty) {
return;
}
@@ -775,12 +767,10 @@ export class StateStore {
// Debounced save for inner states
private saveRalphStates(): void {
this.ralphStateDirty = true;
if (this.ralphStateSaveTimeout) {
return; // Already scheduled
}
this.ralphStateSaveTimeout = setTimeout(() => {
if (this.ralphStateSaveDeb.isPending) return; // Already scheduled
this.ralphStateSaveDeb.schedule(() => {
this.saveRalphStatesNow();
}, SAVE_DEBOUNCE_MS);
});
}
/**
@@ -788,10 +778,7 @@ export class StateStore {
* Writes to temp file first, then renames to prevent corruption on crash.
*/
private saveRalphStatesNow(): void {
if (this.ralphStateSaveTimeout) {
clearTimeout(this.ralphStateSaveTimeout);
this.ralphStateSaveTimeout = null;
}
this.ralphStateSaveDeb.cancel();
if (!this.ralphStateDirty) {
return;
}