tests/org.simantics.db.tests/src/org/simantics/db/tests/performance/read/WriteReadBigLiteral.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.tests.performance.read;
  13
  14 import org.simantics.db.ReadGraph;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.VirtualGraph;
  17 import org.simantics.db.WriteOnlyGraph;
  18 import org.simantics.db.common.TransactionPolicyKeep;
  19 import org.simantics.db.common.WriteBindings;
  20 import org.simantics.db.common.request.ReadRequest;
  21 import org.simantics.db.common.request.WriteOnlyResultRequest;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.db.request.Read;
  24 import org.simantics.db.request.WriteOnlyResult;
  25 import org.simantics.db.service.TransactionPolicySupport;
  26 import org.simantics.db.testing.base.ExistingDatabaseTest;
  27 import org.simantics.layer0.Layer0;
  28
  29 public class WriteReadBigLiteral extends ExistingDatabaseTest {
  30
  31         private static final int _100MB = 100000000;
  32         private static final int _250MB = 250000000;
  33         private static final int _500MB = 500000000;
  34         private static final int _1000MB = 1000000000;
  35         private static final int _2000MB = 2000000000;
  36
  37         private Resource time(String label, WriteOnlyResult<Resource> request) throws DatabaseException {
  38
  39                 long start = System.nanoTime();
  40                 Resource result = getSession().syncRequest(request);
  41                 long duration = System.nanoTime() - start;
  42                 System.out.println(label + " = " + 1e-9*duration);
  43                 return result;
  44
  45         }
  46
  47         private void time(String label, Read<Object> request) throws DatabaseException {
  48
  49                 long start = System.nanoTime();
  50                 getSession().syncRequest(request);
  51                 long duration = System.nanoTime() - start;
  52                 System.out.println(label + " = " + 1e-9*duration);
  53
  54         }
  55
  56         public static WriteOnlyResult<Resource> writeOnly(final int size, VirtualGraph graph) throws DatabaseException {
  57
  58                 final byte[] literal = new byte[size];
  59
  60                 return new WriteOnlyResultRequest<Resource>(graph) {
  61
  62                         @Override
  63                         public Resource perform(WriteOnlyGraph graph) throws DatabaseException {
  64                                 Resource res = graph.newResource();
  65                                 graph.claimValue(res, literal, WriteBindings.BYTE_ARRAY);
  66                                 return res;
  67                         }
  68
  69                 };
  70
  71         }
  72
  73         public static Read<Object> read(final Resource resource) {
  74
  75                 return new ReadRequest() {
  76
  77                         @Override
  78                         public void run(ReadGraph graph) throws DatabaseException {
  79
  80                                 byte[] value = graph.getValue(resource, WriteBindings.BYTE_ARRAY);
  81                                 System.err.println("value: " + value.length);
  82
  83                         }
  84
  85                 };
  86
  87         }
  88
  89         public void test() throws Exception {
  90
  91                 Layer0.getInstance(getSession());
  92
  93                 getSession().registerService(TransactionPolicySupport.class, new TransactionPolicyKeep());
  94
  95                 Resource root = time("write 100MB", writeOnly(_100MB, null));
  96                 time("response 100MB", read(root));
  97                 Resource root2 = time("write 250MB", writeOnly(_250MB, null));
  98                 time("response 250MB", read(root2));
  99                 Resource root3 = time("write 500MB", writeOnly(_500MB, null));
 100                 time("response 500MB", read(root3));
 101                 Resource root4 = time("write 1000MB", writeOnly(_1000MB, null));
 102                 time("response 1000MB", read(root4));
 103                 Resource root5 = time("write 2000MB", writeOnly(_2000MB, null));
 104                 time("response 2000MB", read(root5));
 105
 106
 107 ////            System.out.println("wait");
 108 ////            Thread.sleep(3000);
 109 ////            System.out.println("wait done");
 110 //
 111 //              // Read everything after write
 112 //              time("response", HierarchicalNames.readAsync(root));
 113 //
 114 ////            System.out.println("wait");
 115 ////            Thread.sleep(3000);
 116 ////            System.out.println("wait done");
 117 //
 118 //              // Clusters are now loaded
 119 //              time("async", HierarchicalNames.readAsync(root));
 120 ////            time("async2", HierarchicalNames.readAsync2(root));
 121 ////            time("sync", HierarchicalNames.readSync(root));
 122 ////            listenTime("listenSync", HierarchicalNames.readSync(root));
 123
 124         }
 125
 126 }