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deps: switch to chromium's zlib implementation
This implementation provides optimizations not included upstream.

PR-URL: #31201
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
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mscdex authored and targos committed Apr 28, 2020
1 parent e22d853 commit 9e33f97
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Showing 266 changed files with 11,399 additions and 39,711 deletions.
32 changes: 32 additions & 0 deletions benchmark/zlib/createInflate.js
@@ -0,0 +1,32 @@
'use strict';
const common = require('../common.js');
const zlib = require('zlib');

const bench = common.createBenchmark(main, {
inputLen: [16 * 1024 * 1024],
chunkLen: [1024],
n: [1e2]
});

function main({ n, inputLen, chunkLen }) {
const input = zlib.deflateSync(Buffer.alloc(inputLen, 'a'));

let i = 0;
bench.start();
(function next() {
let p = 0;
const inflater = zlib.createInflate();
inflater.resume();
inflater.on('finish', () => {
if (i++ === n)
return bench.end(n);
next();
});

(function nextChunk() {
if (p >= input.length)
return inflater.end();
inflater.write(input.slice(p, p += chunkLen), nextChunk);
})();
})();
}
37 changes: 37 additions & 0 deletions benchmark/zlib/inflate.js
@@ -0,0 +1,37 @@
'use strict';
const common = require('../common.js');
const zlib = require('zlib');

const bench = common.createBenchmark(main, {
method: ['inflate', 'inflateSync'],
inputLen: [1024],
n: [4e5]
});

function main({ n, method, inputLen }) {
const chunk = zlib.deflateSync(Buffer.alloc(inputLen, 'a'));

let i = 0;
switch (method) {
// Performs `n` single inflate operations
case 'inflate':
const inflate = zlib.inflate;
bench.start();
(function next(err, result) {
if (i++ === n)
return bench.end(n);
inflate(chunk, next);
})();
break;
// Performs `n` single inflateSync operations
case 'inflateSync':
const inflateSync = zlib.inflateSync;
bench.start();
for (; i < n; ++i)
inflateSync(chunk);
bench.end(n);
break;
default:
throw new Error('Unsupported inflate method');
}
}
5 changes: 4 additions & 1 deletion common.gypi
Expand Up @@ -235,7 +235,10 @@
'RuntimeLibrary': '<(MSVC_runtimeType)',
'RuntimeTypeInfo': 'false',
}
}
},
'xcode_settings': {
'GCC_OPTIMIZATION_LEVEL': '3', # stop gyp from defaulting to -Os
},
}
},

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