node/test/parallel/test-stream-transform-split-objectmode.js
Robert Nagy 1abff07392
stream: bump default highWaterMark
This should give a performance boost accross the board.

Given that the old limit is a decod old and memory capacity has
doubled many times since I think it is appropriate to slightly bump
the default limit.

PR-URL: https://github.com/nodejs/node/pull/52037
Refs: https://github.com/nodejs/node/pull/46608
Refs: https://github.com/nodejs/node/pull/50120
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
2024-03-13 19:02:14 +00:00

84 lines
2.8 KiB
JavaScript

// Copyright Joyent, Inc. and other Node contributors.
//
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// copy of this software and associated documentation files (the
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'use strict';
require('../common');
const assert = require('assert');
const Transform = require('stream').Transform;
const parser = new Transform({
readableObjectMode: true
});
assert(parser._readableState.objectMode);
assert(!parser._writableState.objectMode);
assert.strictEqual(parser.readableHighWaterMark, 16);
assert.strictEqual(parser.writableHighWaterMark, process.platform === 'win32' ? 16 * 1024 : 64 * 1024);
assert.strictEqual(parser.readableHighWaterMark,
parser._readableState.highWaterMark);
assert.strictEqual(parser.writableHighWaterMark,
parser._writableState.highWaterMark);
parser._transform = function(chunk, enc, callback) {
callback(null, { val: chunk[0] });
};
let parsed;
parser.on('data', function(obj) {
parsed = obj;
});
parser.end(Buffer.from([42]));
process.on('exit', function() {
assert.strictEqual(parsed.val, 42);
});
const serializer = new Transform({ writableObjectMode: true });
assert(!serializer._readableState.objectMode);
assert(serializer._writableState.objectMode);
assert.strictEqual(serializer.readableHighWaterMark, process.platform === 'win32' ? 16 * 1024 : 64 * 1024);
assert.strictEqual(serializer.writableHighWaterMark, 16);
assert.strictEqual(parser.readableHighWaterMark,
parser._readableState.highWaterMark);
assert.strictEqual(parser.writableHighWaterMark,
parser._writableState.highWaterMark);
serializer._transform = function(obj, _, callback) {
callback(null, Buffer.from([obj.val]));
};
let serialized;
serializer.on('data', function(chunk) {
serialized = chunk;
});
serializer.write({ val: 42 });
process.on('exit', function() {
assert.strictEqual(serialized[0], 42);
});