Node.js client/server performance test with TCP/pipes/sockets

client.js

const fs = require("fs");
const net = require("net");
const os = require("os");

let opts = {};
switch (process.argv[2]) {
    case "pipe":
        opts.path = `\\\\?\\pipe\\${os.userInfo().username}\\ZoweDaemonTest`;
        break;
    case "socket":
        opts.path = `${os.homedir()}/ZoweDaemonTest.sock`;
        break;
    case "tcp":
        opts.port = 4000;
        break;
}
const inFile = process.argv[3];

const client = net.createConnection({ ...opts, allowHalfOpen: true }, () => {
    if (inFile) {
        console.log("hello");
        fs.createReadStream(inFile).pipe(client);
    } else {
        client.write("The quick brown fox jumps over the lazy dog.");
        client.end();
    }
});

client.resume();
client.on("end", () => {
    console.log(`received ${client.bytesRead} bytes`);
    if (inFile) console.log("goodbye");
});

server.js

const fs = require("fs");
const net = require("net");
const os = require("os");

let portOrPath;
switch (process.argv[2]) {
    case "pipe":
        portOrPath = `\\\\?\\pipe\\${os.userInfo().username}\\ZoweDaemonTest`;
        break;
    case "socket":
        portOrPath = `${os.homedir()}/ZoweDaemonTest.sock`;
        break;
    case "tcp":
        portOrPath = 4000;
        break;
}
const inFile = process.argv[3];

const server = net.createServer({ allowHalfOpen: true }, (c) => {
    if (inFile) {
        console.log("client connected");
        fs.createReadStream(inFile).pipe(c);
    } else {
        c.write("The quick brown fox jumps over the lazy dog.");
        c.end();
    }
    c.resume();
    c.on("end", () => {
        console.log(`received ${c.bytesRead} bytes`);
        if (inFile) console.log("client disconnected");
    });
});

server.on("error", (err) => {
    throw err;
});
server.listen(portOrPath, () => {
    console.log("server listening");
});
process.on("SIGINT", () => {
    server.close();
    process.exit();
});

times.txt

**Big Data**
create 1GB test file
- dd if=/dev/urandom of=testfile bs=1024 count=1048576

windows tcp
- node server.js tcp testfile
- time node client.js tcp testfile
4.857
5.151
4.985
5.771
5.187

windows pipe
- node server.js pipe testfile
- time node client.js pipe testfile
4.010
3.998
3.918
4.003
3.796

linux tcp
- node server.js tcp testfile
- time node client.js tcp testfile
2.948
2.394
2.416
2.316
2.496

linux socket
- node server.js socket testfile
- time node client.js socket testfile
2.894
2.428
2.447
2.296
2.351


**Many Requests**
send/receive short string 100 times

windows tcp
- node server.js tcp
- time bash -c "for i in {1..100}; do node client.js tcp; done"
15.424
15.811
16.015
15.705
15.849
concurrent ~2

windows pipe
- node server.js pipe
- time bash -c "for i in {1..100}; do node client.js pipe; done"
19.791
19.596
20.049
19.926
20.100
concurrent fails

linux tcp
- node server.js tcp
- time bash -c "for i in {1..100}; do node client.js tcp; done"
5.140
4.900
4.925
4.842
5.059

linux socket
- node server.js socket
- time bash -c "for i in {1..100}; do node client.js socket; done"
4.647
4.557
4.526
4.508
4.569