The JavaScript Database, for Node.js, nw.js, electron and the browser
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nedb/benchmarks/find.js

100 lines
2.5 KiB

var Datastore = require('../lib/datastore')
, benchDb = 'workspace/find.bench.db'
, fs = require('fs')
, path = require('path')
, async = require('async')
, customUtils = require('../lib/customUtils')
, d
, n = 10000
, order
;
if (process.argv[2]) { n = parseInt(process.argv[2], 10); }
order = customUtils.getRandomArray(n)
console.log("Benchmarking find");
async.waterfall([
function (cb) {
console.log("Preparing database");
customUtils.ensureDirectoryExists(path.dirname(benchDb), function () {
fs.exists(benchDb, function (exists) {
if (exists) {
fs.unlink(benchDb, cb);
} else { return cb(); }
});
});
}
, function (cb) {
d = new Datastore(benchDb);
d.loadDatabase(cb);
}
, function (cb) {
var beg = new Date()
, i = 0;
console.log("Inserting " + n + " documents");
function insertOne(i) {
if (i === n) { // Finished
var timeTaken = (new Date()).getTime() - beg.getTime(); // In ms
console.log("Time taken: " + (timeTaken / 1000) + "s");
return cb();
}
d.insert({ docNumber: i }, function (err) {
process.nextTick(function () {
insertOne(i + 1);
});
});
}
insertOne(0);
}
, function (cb) {
var beg = new Date()
, i = 0;
console.log("Finding " + n + " documents");
function find(i) {
if (i === n) { // Finished
var timeTaken = (new Date()).getTime() - beg.getTime(); // In ms
console.log("Time taken: " + (timeTaken / 1000) + "s");
return cb();
}
d.find({ docNumber: order[i] }, function (err, docs) {
if (docs.length !== 1) { return cb('One find didnt work'); }
process.nextTick(function () {
find(i + 1);
});
});
}
find(0);
}
//, function (cb) {
//var beg = new Date()
//, i = 0;
//console.log("Finding " + n + " documents");
//async.whilst( function () { return i < n; }
//, function (_cb) {
//d.find({ docNumber: order[i] }, function (err, docs) {
//i += 1;
//if (docs.length !== 1) { return _cb(docs); }
//return _cb(err);
//});
//}, function (err) {
//var timeTaken = (new Date()).getTime() - beg.getTime(); // In ms
//if (err) { return cb(err); }
//console.log("Time taken: " + (timeTaken / 1000) + "s");
//return cb();
//});
//}
], function (err) {
console.log("Benchmark finished");
if (err) { return console.log("An error was encountered: ", err); }
});