Files
ST-Bionic-Memory-Ecology/tests/perf/persist-delta-bench.mjs

299 lines
9.8 KiB
JavaScript

import { performance } from "node:perf_hooks";
import {
buildPersistDelta,
resetPersistRecordSerializationCaches,
} from "../../sync/bme-db.js";
import {
getNativeModuleStatus,
installNativePersistDeltaHook,
} from "../../vendor/wasm/stbme_core.js";
const RUNS = 5;
function buildSnapshots(seed = 5, nodeCount = 5000, edgeCount = 12000, churn = 0.1) {
let state = seed >>> 0;
const rand = () => {
state = (state * 1664525 + 1013904223) >>> 0;
return state / 0xffffffff;
};
const beforeNodes = [];
for (let i = 0; i < nodeCount; i++) {
beforeNodes.push({
id: `n-${i}`,
type: "event",
fields: {
text: `node-${i}`,
v: Math.floor(rand() * 1000),
},
archived: false,
updatedAt: 1000 + i,
});
}
const beforeEdges = [];
for (let i = 0; i < edgeCount; i++) {
const from = Math.floor(rand() * nodeCount);
let to = Math.floor(rand() * nodeCount);
if (to === from) to = (to + 1) % nodeCount;
beforeEdges.push({
id: `e-${i}`,
fromId: `n-${from}`,
toId: `n-${to}`,
relation: "related",
strength: rand(),
updatedAt: 1000 + i,
});
}
const afterNodes = beforeNodes.map((node) => ({ ...node, fields: { ...node.fields } }));
const afterEdges = beforeEdges.map((edge) => ({ ...edge }));
const mutateNodeCount = Math.floor(nodeCount * churn);
for (let i = 0; i < mutateNodeCount; i++) {
const index = Math.floor(rand() * afterNodes.length);
afterNodes[index].fields.v = Math.floor(rand() * 5000);
afterNodes[index].updatedAt += 100;
}
const addNodeCount = Math.max(1, Math.floor(nodeCount * churn * 0.25));
const baseNodeId = afterNodes.length;
for (let i = 0; i < addNodeCount; i++) {
afterNodes.push({
id: `n-new-${baseNodeId + i}`,
type: "event",
fields: { text: `new-${i}`, v: Math.floor(rand() * 3000) },
archived: false,
updatedAt: 5000 + i,
});
}
const removeEdgeCount = Math.max(1, Math.floor(edgeCount * churn * 0.2));
afterEdges.splice(0, removeEdgeCount);
return {
before: {
meta: { chatId: "bench-chat", revision: 1, lastModified: 1000 },
state: { lastProcessedFloor: 1, extractionCount: 1 },
nodes: beforeNodes,
edges: beforeEdges,
tombstones: [],
},
after: {
meta: { chatId: "bench-chat", revision: 2, lastModified: 2000 },
state: { lastProcessedFloor: 2, extractionCount: 2 },
nodes: afterNodes,
edges: afterEdges,
tombstones: [],
},
};
}
function summarizeDiagnostics(samples = []) {
const summary = {
prepareMs: 0,
nativeAttemptMs: 0,
lookupMs: 0,
jsDiffMs: 0,
hydrateMs: 0,
serializationCacheHits: 0,
serializationCacheMisses: 0,
preparedRecordSetCacheHits: 0,
preparedRecordSetCacheMisses: 0,
};
if (!samples.length) return summary;
for (const sample of samples) {
summary.prepareMs += Number(sample?.prepareMs || 0);
summary.nativeAttemptMs += Number(sample?.nativeAttemptMs || 0);
summary.lookupMs += Number(sample?.lookupMs || 0);
summary.jsDiffMs += Number(sample?.jsDiffMs || 0);
summary.hydrateMs += Number(sample?.hydrateMs || 0);
summary.serializationCacheHits += Number(sample?.serializationCacheHits || 0);
summary.serializationCacheMisses += Number(sample?.serializationCacheMisses || 0);
summary.preparedRecordSetCacheHits += Number(
sample?.preparedRecordSetCacheHits || 0,
);
summary.preparedRecordSetCacheMisses += Number(
sample?.preparedRecordSetCacheMisses || 0,
);
}
for (const key of Object.keys(summary)) {
summary[key] /= samples.length;
}
return summary;
}
function summarize(values = []) {
if (!values.length) return { avg: 0, p95: 0, min: 0, max: 0 };
const sorted = [...values].sort((a, b) => a - b);
const sum = sorted.reduce((acc, value) => acc + value, 0);
const p95Index = Math.min(sorted.length - 1, Math.floor(sorted.length * 0.95));
return {
avg: sum / sorted.length,
p95: sorted[p95Index],
min: sorted[0],
max: sorted[sorted.length - 1],
};
}
function buildModeOptions(mode, onDiagnostics, extraOptions = {}) {
if (mode === "native-json") {
return {
useNativeDelta: true,
minSnapshotRecords: 0,
minStructuralDelta: 0,
minCombinedSerializedChars: 0,
persistNativeDeltaBridgeMode: "json",
nativeFailOpen: false,
onDiagnostics,
...extraOptions,
};
}
if (mode === "native-hash") {
return {
useNativeDelta: true,
minSnapshotRecords: 0,
minStructuralDelta: 0,
minCombinedSerializedChars: 0,
persistNativeDeltaBridgeMode: "hash",
nativeFailOpen: false,
onDiagnostics,
...extraOptions,
};
}
return {
useNativeDelta: false,
onDiagnostics,
...extraOptions,
};
}
function runMeasuredPersistDeltaSample(
snapshots,
mode,
{ resetCaches = true, usePreparedRecordSetCache = true } = {},
) {
if (resetCaches) {
resetPersistRecordSerializationCaches();
}
let diagnostics = null;
const startedAt = performance.now();
const delta = buildPersistDelta(
snapshots.before,
snapshots.after,
buildModeOptions(
mode,
(snapshot) => {
diagnostics = snapshot;
},
{ usePreparedRecordSetCache },
),
);
const elapsedMs = performance.now() - startedAt;
return {
elapsedMs,
upsertNodes: delta.upsertNodes.length,
upsertEdges: delta.upsertEdges.length,
deleteNodeIds: delta.deleteNodeIds.length,
deleteEdgeIds: delta.deleteEdgeIds.length,
prepareMs: diagnostics?.prepareMs,
nativeAttemptMs: diagnostics?.nativeAttemptMs,
lookupMs: diagnostics?.lookupMs,
jsDiffMs: diagnostics?.jsDiffMs,
hydrateMs: diagnostics?.hydrateMs,
serializationCacheHits: diagnostics?.serializationCacheHits,
serializationCacheMisses: diagnostics?.serializationCacheMisses,
preparedRecordSetCacheHits: diagnostics?.preparedRecordSetCacheHits,
preparedRecordSetCacheMisses: diagnostics?.preparedRecordSetCacheMisses,
};
}
function primePersistDeltaCaches(snapshots, mode) {
buildPersistDelta(
snapshots.before,
snapshots.after,
buildModeOptions(mode, undefined, {
usePreparedRecordSetCache: true,
onDiagnostics() {},
}),
);
}
function formatTimingSummary(label, samples = []) {
const timingSummary = summarize(samples.map((sample) => sample.elapsedMs));
return `${label} avg=${timingSummary.avg.toFixed(2)}ms p95=${timingSummary.p95.toFixed(2)}ms min=${timingSummary.min.toFixed(2)}ms max=${timingSummary.max.toFixed(2)}ms`;
}
function formatStageSummary(label, samples = []) {
const diagnosticsSummary = summarizeDiagnostics(samples);
return `${label} prepare=${diagnosticsSummary.prepareMs.toFixed(2)}ms native=${diagnosticsSummary.nativeAttemptMs.toFixed(2)}ms lookup=${diagnosticsSummary.lookupMs.toFixed(2)}ms diff=${diagnosticsSummary.jsDiffMs.toFixed(2)}ms hydrate=${diagnosticsSummary.hydrateMs.toFixed(2)}ms ser-cache=${diagnosticsSummary.serializationCacheHits.toFixed(1)}H/${diagnosticsSummary.serializationCacheMisses.toFixed(1)}M set-cache=${diagnosticsSummary.preparedRecordSetCacheHits.toFixed(1)}H/${diagnosticsSummary.preparedRecordSetCacheMisses.toFixed(1)}M`;
}
async function main() {
await installNativePersistDeltaHook();
const nativeStatus = getNativeModuleStatus();
const coldSamplesByMode = {
js: [],
"native-json": [],
"native-hash": [],
};
const warmSamplesByMode = {
js: [],
"native-json": [],
"native-hash": [],
};
const modes = ["js", "native-json", "native-hash"];
for (let run = 0; run < RUNS; run++) {
const snapshots = buildSnapshots(17 + run, 5000, 12000, 0.12);
for (const mode of modes) {
coldSamplesByMode[mode].push(
runMeasuredPersistDeltaSample(snapshots, mode, {
resetCaches: true,
usePreparedRecordSetCache: false,
}),
);
resetPersistRecordSerializationCaches();
primePersistDeltaCaches(snapshots, mode);
warmSamplesByMode[mode].push(
runMeasuredPersistDeltaSample(snapshots, mode, {
resetCaches: false,
usePreparedRecordSetCache: true,
}),
);
}
}
const avgUpserts =
coldSamplesByMode.js.reduce(
(acc, sample) => acc + sample.upsertNodes + sample.upsertEdges,
0,
) / coldSamplesByMode.js.length;
const avgDeletes =
coldSamplesByMode.js.reduce(
(acc, sample) => acc + sample.deleteNodeIds + sample.deleteEdgeIds,
0,
) / coldSamplesByMode.js.length;
console.log(
`[ST-BME][bench] persist-delta native-source=${nativeStatus.source || "unknown"}`,
);
console.log(
`[ST-BME][bench] persist-delta cold runs=${RUNS} | ${formatTimingSummary("js", coldSamplesByMode.js)} | ${formatTimingSummary("native-json", coldSamplesByMode["native-json"])} | ${formatTimingSummary("native-hash", coldSamplesByMode["native-hash"])} | avgUpserts=${avgUpserts.toFixed(1)} avgDeletes=${avgDeletes.toFixed(1)}`,
);
console.log(
`[ST-BME][bench] persist-delta cold stages | ${formatStageSummary("js", coldSamplesByMode.js)} | ${formatStageSummary("native-json", coldSamplesByMode["native-json"])} | ${formatStageSummary("native-hash", coldSamplesByMode["native-hash"])} `,
);
console.log(
`[ST-BME][bench] persist-delta warm runs=${RUNS} | ${formatTimingSummary("js", warmSamplesByMode.js)} | ${formatTimingSummary("native-json", warmSamplesByMode["native-json"])} | ${formatTimingSummary("native-hash", warmSamplesByMode["native-hash"])} `,
);
console.log(
`[ST-BME][bench] persist-delta warm stages | ${formatStageSummary("js", warmSamplesByMode.js)} | ${formatStageSummary("native-json", warmSamplesByMode["native-json"])} | ${formatStageSummary("native-hash", warmSamplesByMode["native-hash"])} `,
);
}
main().catch((error) => {
console.error("[ST-BME][bench] persist-delta failed:", error?.message || String(error));
process.exitCode = 1;
});