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Added GraphicsMagick perf stats

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Lovell Fuller 2013-10-04 22:01:16 +01:00
parent 4aee725530
commit 5546a4f881
2 changed files with 15 additions and 2 deletions
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5
README.md
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@ -13,7 +13,7 @@ It is somewhat opinionated in that it only deals with JPEG images, always obeys
Under the hood you'll find the blazingly fast [libvips](https://github.com/jcupitt/libvips) image processing library, originally created in 1989 at Birkbeck College and currently maintained by the University of Southampton. Under the hood you'll find the blazingly fast [libvips](https://github.com/jcupitt/libvips) image processing library, originally created in 1989 at Birkbeck College and currently maintained by the University of Southampton.
Performance is 4x-8x faster than the imagemagick equivalent, based mainly on the number of CPU cores available. Performance is 4x-8x faster than ImageMagick and 2x-4x faster than GraphicsMagick, based mainly on the number of CPU cores available.
## Prerequisites ## Prerequisites
@ -26,7 +26,7 @@ sudo npm install -g node-gyp
sudo apt-get install libvips-dev sudo apt-get install libvips-dev
``` ```
Please symlink `vips-7.28.pc` (or later, installed with libvips-dev) as `/usr/lib/pkgconfig/vips.pc`. To do this in Ubuntu 13.04 (64-bit), use: When installed as a package, please symlink `vips-7.28.pc` (or later, installed with libvips-dev) as `/usr/lib/pkgconfig/vips.pc`. To do this in Ubuntu 13.04 (64-bit), use:
sudo ln -s /usr/lib/x86_64-linux-gnu/pkgconfig/vips-7.28.pc /usr/lib/pkgconfig/vips.pc sudo ln -s /usr/lib/x86_64-linux-gnu/pkgconfig/vips-7.28.pc /usr/lib/pkgconfig/vips.pc
@ -92,6 +92,7 @@ sharp.embedBlack("input.jpg", "output.jpg", 200, 300, function(err) {
### AMD Athlon 4x core 3.3GHz 512KB L2 ### AMD Athlon 4x core 3.3GHz 512KB L2
* imagemagick x 5.55 ops/sec ±0.45% (31 runs sampled) * imagemagick x 5.55 ops/sec ±0.45% (31 runs sampled)
* gm x 10.31 ops/sec ±3.57% (53 runs sampled)
* sharp x 31.52 ops/sec ±8.74% (80 runs sampled) * sharp x 31.52 ops/sec ±8.74% (80 runs sampled)
### AWS t1.micro ### AWS t1.micro

12
tests/perf.js
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@ -1,5 +1,6 @@
var sharp = require("../index"); var sharp = require("../index");
var imagemagick = require("imagemagick"); var imagemagick = require("imagemagick");
var gm = require("gm");
var assert = require("assert"); var assert = require("assert");
var Benchmark = require("benchmark"); var Benchmark = require("benchmark");
@ -26,6 +27,17 @@ suite.add("imagemagick", {
} }
}); });
} }
}).add("gm", {
"defer": true,
"fn": function(deferred) {
gm(input).crop(width, height).write(output, function (err) {
if (err) {
throw err;
} else {
deferred.resolve();
}
});
}
}).add("sharp", { }).add("sharp", {
"defer": true, "defer": true,
"fn": function(deferred) { "fn": function(deferred) {