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cucadmuh
81f900c7a6
* perf(analysis): measure tpm over trailing 5s instead of full minute Mirror the cover cpm change: a 60s rolling average added too much inertia and flattened real bursts/stalls. Count completions in the trailing 5s window and extrapolate to per-minute, so analysis tpm reacts promptly and decays to 0 within the window when idle. Retention stays at 60s. * docs(changelog): note trailing-window throughput rate (PR #948)
50 lines
1.4 KiB
TypeScript
50 lines
1.4 KiB
TypeScript
import { describe, expect, it, beforeEach, vi, afterEach } from 'vitest';
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import {
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getAnalysisTracksPerMinute,
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recordAnalysisTrackPerf,
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resetAnalysisPerfStateForTest,
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} from './analysisPerfStore';
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beforeEach(() => {
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resetAnalysisPerfStateForTest();
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});
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afterEach(() => {
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vi.useRealTimers();
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});
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describe('analysisPerfStore', () => {
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const record = (trackId: string): void =>
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recordAnalysisTrackPerf({ trackId, fetchMs: 1, seedMs: 1, bpmMs: 1, totalMs: 3 });
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it('records last track timings and trailing-window tpm', () => {
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vi.useFakeTimers();
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vi.setSystemTime(1_000_000);
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record('t1');
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vi.advanceTimersByTime(100);
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// 1 completion in the trailing 5s → 1 / 5s × 60 = 12 tpm.
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expect(getAnalysisTracksPerMinute()).toBeCloseTo(12, 0);
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});
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it('extrapolates a burst over the trailing 5s window', () => {
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vi.useFakeTimers();
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vi.setSystemTime(2_000_000);
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record('a');
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vi.advanceTimersByTime(1_000);
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record('b');
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vi.advanceTimersByTime(1_000);
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record('c');
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// 3 completions within the last 5s → 3 / 5s × 60 = 36 tpm.
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expect(getAnalysisTracksPerMinute()).toBeCloseTo(36, 0);
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});
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it('decays to 0 once completions fall outside the trailing window', () => {
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vi.useFakeTimers();
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vi.setSystemTime(3_000_000);
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record('old');
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expect(getAnalysisTracksPerMinute()).toBeGreaterThan(0);
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vi.advanceTimersByTime(6_000);
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expect(getAnalysisTracksPerMinute()).toBe(0);
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});
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});
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