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misc: add event loop stats

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This commit is contained in:
Sheen Capadngan
2025-03-21 01:48:11 +08:00
parent f7cf2bb78f
commit e5947fcab9
1 changed files with 17 additions and 0 deletions
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17
backend/src/server/routes/index.ts
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@@ -1,5 +1,6 @@
import { CronJob } from "cron"; import { CronJob } from "cron";
import { Knex } from "knex"; import { Knex } from "knex";
import { monitorEventLoopDelay } from "perf_hooks";
import { z } from "zod"; import { z } from "zod";
import { registerCertificateEstRouter } from "@app/ee/routes/est/certificate-est-router"; import { registerCertificateEstRouter } from "@app/ee/routes/est/certificate-est-router";
@@ -96,6 +97,7 @@ import { trustedIpDALFactory } from "@app/ee/services/trusted-ip/trusted-ip-dal"
import { trustedIpServiceFactory } from "@app/ee/services/trusted-ip/trusted-ip-service"; import { trustedIpServiceFactory } from "@app/ee/services/trusted-ip/trusted-ip-service";
import { TKeyStoreFactory } from "@app/keystore/keystore"; import { TKeyStoreFactory } from "@app/keystore/keystore";
import { getConfig, TEnvConfig } from "@app/lib/config/env"; import { getConfig, TEnvConfig } from "@app/lib/config/env";
import { logger } from "@app/lib/logger";
import { TQueueServiceFactory } from "@app/queue"; import { TQueueServiceFactory } from "@app/queue";
import { readLimit } from "@app/server/config/rateLimiter"; import { readLimit } from "@app/server/config/rateLimiter";
import { accessTokenQueueServiceFactory } from "@app/services/access-token-queue/access-token-queue"; import { accessTokenQueueServiceFactory } from "@app/services/access-token-queue/access-token-queue";
@@ -246,6 +248,9 @@ import { registerV1Routes } from "./v1";
import { registerV2Routes } from "./v2"; import { registerV2Routes } from "./v2";
import { registerV3Routes } from "./v3"; import { registerV3Routes } from "./v3";
const histogram = monitorEventLoopDelay({ resolution: 20 });
histogram.enable();
export const registerRoutes = async ( export const registerRoutes = async (
server: FastifyZodProvider, server: FastifyZodProvider,
{ {
@@ -1630,6 +1635,18 @@ export const registerRoutes = async (
const cfg = getConfig(); const cfg = getConfig();
const serverCfg = await getServerCfg(); const serverCfg = await getServerCfg();
const meanLagMs = histogram.mean / 1e6;
const maxLagMs = histogram.max / 1e6;
const p99LagMs = histogram.percentile(99) / 1e6;
logger.info(
`Event loop stats - Mean: ${meanLagMs.toFixed(2)}ms, Max: ${maxLagMs.toFixed(2)}ms, p99: ${p99LagMs.toFixed(
2
)}ms`
);
logger.info(`Raw event loop stats: ${JSON.stringify(histogram, null, 2)}`);
// try { // try {
// await db.raw("SELECT NOW()"); // await db.raw("SELECT NOW()");
// } catch (err) { // } catch (err) {