swc/crates/swc_bundler/tests/.cache/untrusted/3ce1840b9199964183770c8844ed4886ef92df13.ts
2021-11-09 20:42:49 +09:00

388 lines
10 KiB
TypeScript

// Loaded from https://raw.githubusercontent.com/nats-io/nats.deno/v1.0.0-11/nats-base-client/bench.ts
/*
* Copyright 2020 The NATS Authors
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { Empty, NatsConnection } from "./types.ts";
import { nuid } from "./nuid.ts";
import { deferred, Perf } from "./util.ts";
import { ErrorCode, NatsError } from "./error.ts";
import type { NatsConnectionImpl } from "./nats.ts";
export class Metric {
name: string;
duration: number;
date: number;
payload = 0;
msgs = 0;
lang!: string;
version!: string;
bytes = 0;
asyncRequests?: boolean;
min?: number;
max?: number;
constructor(name: string, duration: number) {
this.name = name;
this.duration = duration;
this.date = Date.now();
}
toString(): string {
const sec = (this.duration) / 1000;
const mps = Math.round(this.msgs / sec);
const label = this.asyncRequests ? "asyncRequests" : "";
let minmax = "";
if (this.max) {
minmax = `${this.min}/${this.max}`;
}
return `${this.name}${label ? " [asyncRequests]" : ""} ${
humanizeNumber(mps)
} msgs/sec - [${sec.toFixed(2)} secs] ~ ${
throughput(this.bytes, sec)
} ${minmax}`;
}
toCsv(): string {
return `"${this.name}",${
new Date(this.date).toISOString()
},${this.lang},${this.version},${this.msgs},${this.payload},${this.bytes},${this.duration},${
this.asyncRequests ? this.asyncRequests : false
}\n`;
}
static header(): string {
return `Test,Date,Lang,Version,Count,MsgPayload,Bytes,Millis,Async\n`;
}
}
export interface BenchOpts {
callbacks?: boolean;
msgs?: number;
size?: number;
subject?: string;
asyncRequests?: boolean;
pub?: boolean;
sub?: boolean;
rep?: boolean;
req?: boolean;
}
export class Bench {
nc: NatsConnection;
callbacks = false;
msgs: number;
size: number;
subject: string;
asyncRequests?: boolean;
pub?: boolean;
sub?: boolean;
req?: boolean;
rep?: boolean;
perf: Perf;
payload: Uint8Array;
constructor(
nc: NatsConnection,
opts: BenchOpts = {
msgs: 100000,
size: 128,
subject: "",
asyncRequests: false,
pub: false,
sub: false,
req: false,
rep: false,
},
) {
this.nc = nc;
this.callbacks = opts.callbacks || false;
this.msgs = opts.msgs || 0;
this.size = opts.size || 0;
this.subject = opts.subject || nuid.next();
this.asyncRequests = opts.asyncRequests || false;
this.pub = opts.pub || false;
this.sub = opts.sub || false;
this.req = opts.req || false;
this.rep = opts.rep || false;
this.perf = new Perf();
this.payload = this.size ? new Uint8Array(this.size) : Empty;
if (!this.pub && !this.sub && !this.req && !this.rep) {
throw new Error("No bench option selected");
}
}
async run(): Promise<Metric[]> {
this.nc.closed()
.then((err) => {
if (err) {
throw new NatsError(
`bench closed with an error: ${err.message}`,
ErrorCode.UNKNOWN,
err,
);
}
});
if (this.callbacks) {
await this.runCallbacks();
} else {
await this.runAsync();
}
return this.processMetrics();
}
processMetrics(): Metric[] {
const nc = this.nc as NatsConnectionImpl;
const { lang, version } = nc.protocol.transport;
if (this.pub && this.sub) {
this.perf.measure("pubsub", "pubStart", "subStop");
}
const measures = this.perf.getEntries();
const pubsub = measures.find((m) => m.name === "pubsub");
const req = measures.find((m) => m.name === "req");
const pub = measures.find((m) => m.name === "pub");
const sub = measures.find((m) => m.name === "sub");
const stats = this.nc.stats();
const metrics: Metric[] = [];
if (pubsub) {
const { name, duration } = pubsub;
const m = new Metric(name, duration);
m.msgs = this.msgs * 2;
m.bytes = stats.inBytes + stats.outBytes;
m.lang = lang;
m.version = version;
m.payload = this.payload.length;
metrics.push(m);
}
if (pub) {
const { name, duration } = pub;
const m = new Metric(name, duration);
m.msgs = this.msgs;
m.bytes = stats.outBytes;
m.lang = lang;
m.version = version;
m.payload = this.payload.length;
metrics.push(m);
}
if (sub) {
const { name, duration } = sub;
const m = new Metric(name, duration);
m.msgs = this.msgs;
m.bytes = stats.inBytes;
m.lang = lang;
m.version = version;
m.payload = this.payload.length;
metrics.push(m);
}
if (req) {
const { name, duration } = req;
const m = new Metric(name, duration);
m.msgs = this.msgs * 2;
m.bytes = stats.inBytes + stats.outBytes;
m.lang = lang;
m.version = version;
m.payload = this.payload.length;
metrics.push(m);
}
return metrics;
}
async runCallbacks(): Promise<void> {
const jobs: Promise<void>[] = [];
if (this.req) {
const d = deferred<void>();
jobs.push(d);
const sub = this.nc.subscribe(
this.subject,
{
max: this.msgs,
callback: (_, m) => {
m.respond(this.payload);
if (sub.getProcessed() === this.msgs) {
d.resolve();
}
},
},
);
}
if (this.sub) {
const d = deferred<void>();
jobs.push(d);
let i = 0;
const sub = this.nc.subscribe(this.subject, {
max: this.msgs,
callback: (_, msg) => {
i++;
if (i === 1) {
this.perf.mark("subStart");
}
if (i === this.msgs) {
this.perf.mark("subStop");
this.perf.measure("sub", "subStart", "subStop");
d.resolve();
}
},
});
}
if (this.pub) {
const job = (async () => {
this.perf.mark("pubStart");
for (let i = 0; i < this.msgs; i++) {
this.nc.publish(this.subject, this.payload);
}
await this.nc.flush();
this.perf.mark("pubStop");
this.perf.measure("pub", "pubStart", "pubStop");
})();
jobs.push(job);
}
if (this.req) {
const job = (async () => {
if (this.asyncRequests) {
this.perf.mark("reqStart");
const a = [];
for (let i = 0; i < this.msgs; i++) {
a.push(
this.nc.request(this.subject, this.payload, { timeout: 20000 }),
);
}
await Promise.all(a);
this.perf.mark("reqStop");
this.perf.measure("req", "reqStart", "reqStop");
} else {
this.perf.mark("reqStart");
for (let i = 0; i < this.msgs; i++) {
await this.nc.request(this.subject);
}
this.perf.mark("reqStop");
this.perf.measure("req", "reqStart", "reqStop");
}
})();
jobs.push(job);
}
await Promise.all(jobs);
}
async runAsync(): Promise<void> {
const jobs: Promise<void>[] = [];
if (this.req) {
const sub = this.nc.subscribe(this.subject, { max: this.msgs });
const job = (async () => {
for await (const m of sub) {
m.respond(this.payload);
}
})();
jobs.push(job);
}
if (this.sub) {
let first = false;
const sub = this.nc.subscribe(this.subject, { max: this.msgs });
const job = (async () => {
for await (const m of sub) {
if (!first) {
this.perf.mark("subStart");
first = true;
}
}
this.perf.mark("subStop");
this.perf.measure("sub", "subStart", "subStop");
})();
jobs.push(job);
}
if (this.pub) {
const job = (async () => {
this.perf.mark("pubStart");
for (let i = 0; i < this.msgs; i++) {
this.nc.publish(this.subject, this.payload);
}
await this.nc.flush();
this.perf.mark("pubStop");
this.perf.measure("pub", "pubStart", "pubStop");
})();
jobs.push(job);
}
if (this.req) {
const job = (async () => {
if (this.asyncRequests) {
this.perf.mark("reqStart");
const a = [];
for (let i = 0; i < this.msgs; i++) {
a.push(
this.nc.request(this.subject, this.payload, { timeout: 20000 }),
);
}
await Promise.all(a);
this.perf.mark("reqStop");
this.perf.measure("req", "reqStart", "reqStop");
} else {
this.perf.mark("reqStart");
for (let i = 0; i < this.msgs; i++) {
await this.nc.request(this.subject);
}
this.perf.mark("reqStop");
this.perf.measure("req", "reqStart", "reqStop");
}
})();
jobs.push(job);
}
await Promise.all(jobs);
}
}
function throughput(bytes: number, seconds: number): string {
return humanizeBytes(bytes / seconds);
}
function humanizeBytes(bytes: number, si = false): string {
const base = si ? 1000 : 1024;
const pre = si
? ["k", "M", "G", "T", "P", "E"]
: ["K", "M", "G", "T", "P", "E"];
const post = si ? "iB" : "B";
if (bytes < base) {
return `${bytes.toFixed(2)} ${post}/sec`;
}
const exp = parseInt(Math.log(bytes) / Math.log(base) + "");
let index = parseInt((exp - 1) + "");
return `${(bytes / Math.pow(base, exp)).toFixed(2)} ${pre[index]}${post}/sec`;
}
function humanizeNumber(n: number) {
return n.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}