jukka

Apache Jackrabbit Oak 1.0.1
for background, see benchmark section in https://github.com/apache/jackrabbit-oak/blob/trunk/oak-run/README.md

Summary (90%, lower is better):

    Benchmark                      Jackrabbit  Oak-Mongo  Oak-Tar
    -------------------------------------------------------------
    ReadPropertyTest                       45          4        4
    SetPropertyTest                      1179       2398      119
    SmallFileReadTest                      47          9        7

jukka

public class MicroKernelImpl implements MicroKernel {

    public boolean nodeExists(String path, String revisionId) 
            throws MicroKernelException {
        Tree tree = getTree(revisionId);
        for (String name : splitPathToElements(path)) {
            if (tree == null) {
                return false;
            }
            tree = tree.get(name);

jukka

/**
 * A content tree consists of nodes and properties, each of which
 * evolves through different states during its lifecycle. This interface
 * represents a specific, immutable state of a node in a content tree.
 * Depending on context, a NodeState instance can be interpreted as
 * representing the state of just that node, of the subtree starting at
 * that node, or of an entire tree in case it's a root node.
 * <p>
 * The crucial difference between this interface and the similarly named
 * class in Jackrabbit 2.x is that this interface represents a specific,

jukka

/**
 * Builder interface for constructing new {@link NodeState node states}.
 */
public interface NodeBuilder {

    /**
     * Sets or removes the named property.
     *
     * @param name property name
     * @param encodedValue encoded value of the property,

jukka

Apache Jackrabbit Oak 0.9-SNAPSHOT
# ReadPropertyTest               min     10%     50%     90%     max       N
Jackrabbit                        41      41      42      43      90    1428
Oak-Default                       58      58      59      60      69    1018
Oak-Mongo                         66      67      67      68      74     889
Oak-Segment                      278     279     281     285     321     213
Oak-Tar                          114     114     115     117     136     520
# SmallFileReadTest              min     10%     50%     90%     max       N
Jackrabbit                        56      57      61      84     194     895
Oak-Default                       57      57      59     304     353     594

jukka

# ReadPropertyTest               min     10%     50%     90%     max       N
Jackrabbit                        45      46      46      48      96    1285
Oak-Default                       35      36      36      38      48    1644
Oak-Mongo                         36      37      37      39      60    1594
Oak-Segment                       38      39      39      41      63    1510
Oak-Tar                           37      37      38      40      46    1559
# SmallFileReadTest              min     10%     50%     90%     max       N
Jackrabbit                        62      63      67      94     219     806
Oak-Default                       62      62      74     258     327     579
Oak-Mongo                        155     156     159     421     534     306

jukka

Apache Jackrabbit Oak 0.10-SNAPSHOT

# ReadPropertyTest               min     10%     50%     90%     max       N
Jackrabbit                        45      46      46      48     113    1292
Oak-Default                       37      37      37      39      46    1595
Oak-Mongo                         39      39      39      41      51    1512
Oak-Segment                       39      39      40      41      83    1495
Oak-Tar                           40      40      41      42      46    1465

# SmallFileReadTest              min     10%     50%     90%     max       N

jukka

Apache Jackrabbit Oak 0.10-SNAPSHOT

# ConcurrentReadTest             min     10%     50%     90%     max       N
Jackrabbit                      2789    2807    2921    4132    5000      20
Oak-Default                     1892    1910    1970    2031    2747      31
Oak-Mongo                       1895    1929    2043    2116    2182      30
Oak-Segment                     1930    1949    2073    2258    2322      29
Oak-Tar                         2096    2261    2443    2580    2676      25

# ConcurrentReadWriteTest        min     10%     50%     90%     max       N

jukka

import java.util.Map;

/**
 * Trees are the key concept in a hierarchical content repository.
 * This interface is a low-level tree node representation that just
 * maps zero or more string names to corresponding child nodes.
 * Depending on context, a Tree instance can be interpreted as
 * representing just that tree node, the subtree starting at that node,
 * or an entire tree in case it's a root node.
 * <p>