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profiling, better concurrency heuristics

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This commit is contained in:
Jacky Zhao 2023-08-09 00:26:33 -07:00
parent 68ccd1d79d
commit cea6834fef
4 changed files with 9 additions and 6 deletions
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1
.gitignore vendored
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@ -2,6 +2,7 @@
.gitignore
node_modules
public
prof
tsconfig.tsbuildinfo
.obsidian
.quartz-cache

2
content/advanced/making plugins.md
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@ -2,7 +2,7 @@
title: Making your own plugins
---
This part of the documentation will assume you have some basic coding knowledge and will include code snippets that describe the interface of what Quartz plugins should look like.
This part of the documentation will assume you have some basic coding knowledge in TypeScript and will include code snippets that describe the interface of what Quartz plugins should look like.
![[quartz-transform-pipeline.png]]

3
package.json
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@ -14,7 +14,8 @@
"scripts": {
"check": "tsc --noEmit && npx prettier . --check",
"format": "npx prettier . --write",
"test": "tsx ./quartz/path.test.ts"
"test": "tsx ./quartz/path.test.ts",
"profile": "0x -D prof ./quartz/bootstrap-cli.mjs build --concurrency=1"
},
"keywords": [
"site generator",

9
quartz/processors/parse.ts
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@ -9,7 +9,6 @@ import { PerfTimer } from "../perf"
import { read } from "to-vfile"
import { FilePath, QUARTZ, slugifyFilePath } from "../path"
import path from "path"
import os from "os"
import workerpool, { Promise as WorkerPromise } from "workerpool"
import { QuartzLogger } from "../log"
import { trace } from "../trace"
@ -82,6 +81,7 @@ export function createFileParser(ctx: BuildCtx, fps: FilePath[]) {
const res: ProcessedContent[] = []
for (const fp of fps) {
try {
const perf = new PerfTimer()
const file = await read(fp)
// strip leading and trailing whitespace
@ -101,7 +101,7 @@ export function createFileParser(ctx: BuildCtx, fps: FilePath[]) {
res.push([newAst, file])
if (argv.verbose) {
console.log(`[process] ${fp} -> ${file.data.slug}`)
console.log(`[process] ${fp} -> ${file.data.slug} (${perf.timeSince()})`)
}
} catch (err) {
trace(`\nFailed to process \`${fp}\``, err as Error)
@ -112,14 +112,15 @@ export function createFileParser(ctx: BuildCtx, fps: FilePath[]) {
}
}
const clamp = (num: number, min: number, max: number) => Math.min(Math.max(Math.round(num), min), max);
export async function parseMarkdown(ctx: BuildCtx, fps: FilePath[]): Promise<ProcessedContent[]> {
const { argv } = ctx
const perf = new PerfTimer()
const log = new QuartzLogger(argv.verbose)
// rough heuristics: 128 gives enough time for v8 to JIT and optimize parsing code paths
const CHUNK_SIZE = 128
let concurrency =
ctx.argv.concurrency ?? (fps.length < CHUNK_SIZE ? 1 : os.availableParallelism())
const concurrency = ctx.argv.concurrency ?? clamp(fps.length / CHUNK_SIZE, 1, 4)
let res: ProcessedContent[] = []
log.start(`Parsing input files using ${concurrency} threads`)