mirror of https://gitee.com/bigwinds/arangodb
132 lines
3.8 KiB
JavaScript
132 lines
3.8 KiB
JavaScript
/*jshint globalstrict:false, strict:false */
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/*global assertFalse */
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test the performance of removal with a skip-list index
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2013 triagens GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Max Neunhoeffer
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/// @author Copyright 2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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var jsunity = require("jsunity");
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var internal = require("internal");
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var db = require("internal").db;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test suite: Creation
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////////////////////////////////////////////////////////////////////////////////
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function SkipListPerfSuite() {
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'use strict';
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var cn = "UnitTestsCollectionSkiplistPerf";
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var collection = null;
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return {
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////////////////////////////////////////////////////////////////////////////////
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/// @brief set up
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////////////////////////////////////////////////////////////////////////////////
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setUp : function () {
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internal.db._drop(cn);
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collection = internal.db._create(cn, { waitForSync : false });
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},
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////////////////////////////////////////////////////////////////////////////////
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/// @brief tear down
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////////////////////////////////////////////////////////////////////////////////
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tearDown : function () {
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// try...catch is necessary as some tests delete the collection itself!
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try {
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collection.unload();
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collection.drop();
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}
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catch (err) {
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}
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collection = null;
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internal.wait(0.0);
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},
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test: performance of deletion with skip-list index
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////////////////////////////////////////////////////////////////////////////////
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testDeletionPerformance : function () {
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var time = require("internal").time;
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collection.ensureSkiplist("value");
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var N=100000;
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var p=14777; // must be coprime to N
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if (db._engine().name === "rocksdb") {
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print("FIXME -- fix performance for rockdsdb and remove adjustment in test")
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N = 1000;
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p = 333;
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}
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for (i = 0;i < N;i++) {
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collection.save({value:i});
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}
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var l = collection.toArray();
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var t = time();
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var j = 0;
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var x;
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for (var i = 0;i < l.length;i++) {
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x = l[j];
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j = (j+p) % l.length;
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collection.remove(x._key);
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}
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var t1 = time()-t;
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internal.db._drop(cn);
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collection = internal.db._create(cn);
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collection.ensureSkiplist("value");
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for (i = 0;i < N;i++) {
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collection.save({value: i % 10});
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}
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l = collection.toArray();
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t = time();
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j = 0;
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for (i = 0;i < l.length;i++) {
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x = l[j];
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j = (j+p) % l.length;
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collection.remove(x._key);
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}
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var t2 = time()-t;
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assertFalse(t2 > 5*t1,"Removal with skip-list index is slow");
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}
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief executes the test suites
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////////////////////////////////////////////////////////////////////////////////
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jsunity.run(SkipListPerfSuite);
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return jsunity.done();
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