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comparison cmdline/org/tmatesoft/hg/console/Main.java @ 243:0e01f9182e16

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External cache Nodeid<->int added, Revlog.RevisionMap
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 23 Jun 2011 16:58:38 +0200
parents ad6a046943be
children 4b661efb9374
comparison
equal deleted inserted replaced
242:ad6a046943be 243:0e01f9182e16
70 System.out.println("REPO:" + hgRepo.getLocation()); 70 System.out.println("REPO:" + hgRepo.getLocation());
71 } 71 }
72 72
73 public static void main(String[] args) throws Exception { 73 public static void main(String[] args) throws Exception {
74 Main m = new Main(args); 74 Main m = new Main(args);
75 m.testRevisionMap();
75 // m.testSubrepos(); 76 // m.testSubrepos();
76 // m.testReadWorkingCopy(); 77 // m.testReadWorkingCopy();
77 // m.testParents(); 78 // m.testParents();
78 m.testEffectiveFileLog(); 79 // m.testEffectiveFileLog();
79 // m.testCatAtCsetRevision(); 80 // m.testCatAtCsetRevision();
80 // m.testMergeState(); 81 // m.testMergeState();
81 // m.testFileStatus(); 82 // m.testFileStatus();
82 // m.dumpBranches(); 83 // m.dumpBranches();
83 // m.inflaterLengthException(); 84 // m.inflaterLengthException();
86 // m.testStatusInternals(); 87 // m.testStatusInternals();
87 // m.catCompleteHistory(); 88 // m.catCompleteHistory();
88 // m.dumpCompleteManifestLow(); 89 // m.dumpCompleteManifestLow();
89 // m.dumpCompleteManifestHigh(); 90 // m.dumpCompleteManifestHigh();
90 // m.bunchOfTests(); 91 // m.bunchOfTests();
92 }
93
94 /*
95 * cpython repo with 70715 revisions.
96 3 revisions - 80 ms vs 250 ms (250ms init)
97 4 revisions - 110 ms vs 265 ms (265 ms init)
98 5 revisions - 94 vs 266.
99 complete iteration in changelog.getLocalRevision(tipNodeid) takes 47 ms
100 compared to complete iteration inside RevisionMap.init() of 171 ms.
101 The only difference is latter instantiates Nodeids, while former compares binary content as is.
102 Hence, with 20-30 ms per regular getLocalRevision, it pays off to use RevisionMap with at least 15-20
103 queries
104 */
105 private void testRevisionMap() throws Exception {
106 HgChangelog changelog = hgRepo.getChangelog();
107 HgChangelog.RevisionMap rmap = changelog.new RevisionMap().init(); // warm-up, ensure complete file read
108 int tip = changelog.getLastRevision();
109 // take 5 arbitrary revisions at 0, 1/4, 2/4, 3/4 and 4/4
110 final Nodeid[] revs = new Nodeid[5];
111 revs[4] = changelog.getRevision(0);
112 revs[3] = changelog.getRevision(tip / 4);
113 revs[2] = changelog.getRevision(tip / 2);
114 revs[1] = changelog.getRevision(tip / 4 + tip / 2);
115 revs[0] = changelog.getRevision(tip);
116 long start = System.currentTimeMillis();
117 for (int i = 0; i < revs.length; i++) {
118 final int localRev = changelog.getLocalRevision(revs[i]);
119 System.out.printf("%d:%s\n", localRev, revs[i]);
120 }
121 System.out.println(System.currentTimeMillis() - start);
122 System.out.println();
123 //
124 start = System.currentTimeMillis();
125 rmap = changelog.new RevisionMap().init();
126 long s2 = System.currentTimeMillis();
127 for (int i = 0; i < revs.length; i++) {
128 final int localRev = rmap.localRevision(revs[i]);
129 System.out.printf("%d:%s\n", localRev, revs[i]);
130 }
131 System.out.println(System.currentTimeMillis() - start);
132 System.out.printf("\t from that, init took %d ms\n", s2 - start);
133
91 } 134 }
92 135
93 private void testSubrepos() throws Exception { 136 private void testSubrepos() throws Exception {
94 for (HgSubrepoLocation l : hgRepo.getSubrepositories()) { 137 for (HgSubrepoLocation l : hgRepo.getSubrepositories()) {
95 System.out.println(l.getLocation()); 138 System.out.println(l.getLocation());