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Expose libvips thread pool size

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Lovell Fuller
2014-09-03 19:52:03 +01:00
parent 87f6e83988
commit eb3e739f7b
5 changed files with 83 additions and 37 deletions
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76
tests/parallel.js
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@@ -1,37 +1,39 @@
var sharp = require("../index");
var fs = require("fs");
var path = require("path");
var assert = require("assert");
var async = require("async");
var inputJpg = path.join(__dirname, "fixtures/2569067123_aca715a2ee_o.jpg"); // http://www.flickr.com/photos/grizdave/2569067123/
var width = 720;
var height = 480;
var timer = setInterval(function() {
console.dir(sharp.cache());
}, 100);
async.mapSeries([1, 1, 2, 4, 8, 16, 32, 64, 128], function(parallelism, next) {
var start = new Date().getTime();
async.times(parallelism,
function(id, callback) {
sharp(inputJpg).resize(width, height).toBuffer(function(err, buffer) {
buffer = null;
callback(err, new Date().getTime() - start);
});
},
function(err, ids) {
assert(!err);
assert(ids.length === parallelism);
var mean = ids.reduce(function(a, b) {
return a + b;
}) / ids.length;
console.log(parallelism + " parallel calls: fastest=" + ids[0] + "ms slowest=" + ids[ids.length - 1] + "ms mean=" + mean + "ms");
next();
}
);
}, function() {
clearInterval(timer);
console.dir(sharp.cache());
});
var sharp = require("../index");
var fs = require("fs");
var path = require("path");
var assert = require("assert");
var async = require("async");
var inputJpg = path.join(__dirname, "fixtures/2569067123_aca715a2ee_o.jpg"); // http://www.flickr.com/photos/grizdave/2569067123/
var width = 720;
var height = 480;
sharp.concurrency(1);
var timer = setInterval(function() {
console.dir(sharp.counters());
}, 100);
async.mapSeries([1, 1, 2, 4, 8, 16, 32, 64, 128], function(parallelism, next) {
var start = new Date().getTime();
async.times(parallelism,
function(id, callback) {
sharp(inputJpg).resize(width, height).toBuffer(function(err, buffer) {
buffer = null;
callback(err, new Date().getTime() - start);
});
},
function(err, ids) {
assert(!err);
assert(ids.length === parallelism);
var mean = ids.reduce(function(a, b) {
return a + b;
}) / ids.length;
console.log(parallelism + " parallel calls: fastest=" + ids[0] + "ms slowest=" + ids[ids.length - 1] + "ms mean=" + mean + "ms");
next();
}
);
}, function() {
clearInterval(timer);
console.dir(sharp.counters());
});

7
tests/unit.js
View File

@@ -28,6 +28,13 @@ var inputGif = path.join(fixturesPath, "Crash_test.gif"); // http://upload.wikim
sharp.cache(0); // Disable
sharp.cache(50, 500); // 50MB, 500 items
// Ensure concurrency can be set
var defaultConcurrency = sharp.concurrency();
sharp.concurrency(16);
assert.strictEqual(16, sharp.concurrency());
sharp.concurrency(0);
assert.strictEqual(defaultConcurrency, sharp.concurrency());
async.series([
// Resize with exact crop
function(done) {