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comparison cmdline/org/tmatesoft/hg/console/Main.java @ 574:88afffd39899

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Improve memory consumption of HgManifest#getFileRevision(): avoid extra byte[] instances
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 16 Apr 2013 14:44:57 +0200
parents 2f9ed6bcefa2
children 3c4db86e8c1f
comparison
equal deleted inserted replaced
573:e49f9d9513fa 574:88afffd39899
26 import java.util.HashSet; 26 import java.util.HashSet;
27 import java.util.List; 27 import java.util.List;
28 import java.util.Map; 28 import java.util.Map;
29 29
30 import org.tmatesoft.hg.core.HgChangeset; 30 import org.tmatesoft.hg.core.HgChangeset;
31 import org.tmatesoft.hg.core.HgChangesetFileSneaker;
31 import org.tmatesoft.hg.core.HgChangesetTreeHandler; 32 import org.tmatesoft.hg.core.HgChangesetTreeHandler;
32 import org.tmatesoft.hg.core.HgCheckoutCommand; 33 import org.tmatesoft.hg.core.HgCheckoutCommand;
33 import org.tmatesoft.hg.core.HgException; 34 import org.tmatesoft.hg.core.HgException;
34 import org.tmatesoft.hg.core.HgFileRenameHandlerMixin; 35 import org.tmatesoft.hg.core.HgFileRenameHandlerMixin;
35 import org.tmatesoft.hg.core.HgFileRevision; 36 import org.tmatesoft.hg.core.HgFileRevision;
40 import org.tmatesoft.hg.core.Nodeid; 41 import org.tmatesoft.hg.core.Nodeid;
41 import org.tmatesoft.hg.internal.BasicSessionContext; 42 import org.tmatesoft.hg.internal.BasicSessionContext;
42 import org.tmatesoft.hg.internal.ByteArrayChannel; 43 import org.tmatesoft.hg.internal.ByteArrayChannel;
43 import org.tmatesoft.hg.internal.ConfigFile; 44 import org.tmatesoft.hg.internal.ConfigFile;
44 import org.tmatesoft.hg.internal.DigestHelper; 45 import org.tmatesoft.hg.internal.DigestHelper;
46 import org.tmatesoft.hg.internal.ManifestRevision;
45 import org.tmatesoft.hg.internal.PathGlobMatcher; 47 import org.tmatesoft.hg.internal.PathGlobMatcher;
46 import org.tmatesoft.hg.internal.RelativePathRewrite; 48 import org.tmatesoft.hg.internal.RelativePathRewrite;
47 import org.tmatesoft.hg.internal.StreamLogFacility; 49 import org.tmatesoft.hg.internal.StreamLogFacility;
48 import org.tmatesoft.hg.repo.HgBookmarks; 50 import org.tmatesoft.hg.repo.HgBookmarks;
49 import org.tmatesoft.hg.repo.HgBranches; 51 import org.tmatesoft.hg.repo.HgBranches;
98 System.out.println("REPO:" + hgRepo.getLocation()); 100 System.out.println("REPO:" + hgRepo.getLocation());
99 } 101 }
100 102
101 public static void main(String[] args) throws Exception { 103 public static void main(String[] args) throws Exception {
102 Main m = new Main(args); 104 Main m = new Main(args);
103 m.testRevert(); 105 m.checkFileSneakerPerformance2();
106 // m.testRevert();
104 // m.testCheckout(); 107 // m.testCheckout();
105 // m.tryExtensions(); 108 // m.tryExtensions();
106 // m.dumpBookmarks(); 109 // m.dumpBookmarks();
107 // m.readConfigFile(); 110 // m.readConfigFile();
108 // m.dumpCommitLastMessage(); 111 // m.dumpCommitLastMessage();
124 // m.catCompleteHistory(); 127 // m.catCompleteHistory();
125 // m.dumpCompleteManifestLow(); 128 // m.dumpCompleteManifestLow();
126 // m.dumpCompleteManifestHigh(); 129 // m.dumpCompleteManifestHigh();
127 // m.bunchOfTests(); 130 // m.bunchOfTests();
128 } 131 }
132
133 private void checkFileSneakerPerformance() throws Exception {
134 HgChangesetFileSneaker fs1 = new HgChangesetFileSneaker(hgRepo);
135 HgChangesetFileSneaker fs2 = new HgChangesetFileSneaker(hgRepo);
136 fs1.followRenames(true);
137 fs2.followRenames(true);
138 Nodeid cset = hgRepo.getChangelog().getRevision(TIP);
139 Path fname = Path.create("dir3/file8");
140 fs1.changeset(cset);
141 fs2.changeset(cset);
142 // hgRepo.getManifest().getFileRevision(TIP, fname);
143 final long start1 = System.nanoTime();
144 boolean e1 = fs1.checkExists(fname);
145 final long end1 = System.nanoTime();
146 boolean e2 = fs2.checkExists(fname);
147 final long end2 = System.nanoTime();
148 Nodeid fr = hgRepo.getManifest().getFileRevision(TIP, fname);
149 final long end3 = System.nanoTime();
150 System.out.printf("\t1st run: %d ms, %b\n\t2nd run: %d ms, %b\n\tfile only: %d ms", (end1 - start1) / 1000000, e1, (end2 - end1) / 1000000, e2, (end3-end2)/1000000);
151 if (!fr.equals(fs1.revision()) || !fr.equals(fs2.revision())) {
152 throw new AssertionError();
153 }
154 ManifestRevision mr = new ManifestRevision(null, null);
155 final long _s1 = System.nanoTime();
156 hgRepo.getManifest().walk(2, 2, mr);
157 final long _e1 = System.nanoTime();
158 hgRepo.getManifest().getFileRevision(2, fname);
159 final long _e2 = System.nanoTime();
160 System.out.printf("\n\tManifestRevision:%d ms, getFileRevision:%d ms\n", (_e1-_s1)/1000000, (_e2-_e1)/1000000);
161 }
162
163 // -agentlib:hprof=cpu=times,heap=sites,depth=10
164 private void checkFileSneakerPerformance2() throws Exception {
165 Path fname = Path.create("dir3/file8");
166 hgRepo.getManifest().getFileRevision(2, fname);
167 // ManifestRevision mr = new ManifestRevision(null, null);
168 // hgRepo.getManifest().walk(2, 2, mr);
169 }
170
129 171
130 private void testRevert() throws Exception { 172 private void testRevert() throws Exception {
131 HgRevertCommand cmd = new HgRevertCommand(hgRepo); 173 HgRevertCommand cmd = new HgRevertCommand(hgRepo);
132 cmd.file(Path.create("a.txt")).execute(); 174 cmd.file(Path.create("a.txt")).execute();
133 } 175 }