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| author | Quincey Koziol <koziol@hdfgroup.org> | 2006-09-05 20:53:16 (GMT) |
|---|---|---|
| committer | Quincey Koziol <koziol@hdfgroup.org> | 2006-09-05 20:53:16 (GMT) |
| commit | 23b3a6a91b88e6cbc3474e83fba1e4eb62763126 (patch) | |
| tree | 937d5639b467eac5e394f994254e13f9ff2fb166 /src/H5B2test.c | |
| parent | 35fc3a4a83e64dfa25d80fe84e6fd34ae75d7c8f (diff) | |
| download | hdf5-23b3a6a91b88e6cbc3474e83fba1e4eb62763126.zip hdf5-23b3a6a91b88e6cbc3474e83fba1e4eb62763126.tar.gz hdf5-23b3a6a91b88e6cbc3474e83fba1e4eb62763126.tar.bz2 | |
[svn-r12644] Description:
Improve density of the B-tree further. For greater depths of B-trees,
the gains are over 100%...
Also, don't split internal nodes with 3->4 splits, use a 1->2 split
instead, so that the density of the nodes around a split is maximized.
Tested:
Mac OS X/PPC 10.4 (amazon)
Linux/32 2.6 (chicago)
Linux/64 2.6 (chicago2)
Diffstat (limited to 'src/H5B2test.c')
| -rw-r--r-- | src/H5B2test.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/H5B2test.c b/src/H5B2test.c index 3ba4a34..7863b60 100644 --- a/src/H5B2test.c +++ b/src/H5B2test.c @@ -326,21 +326,21 @@ H5B2_get_node_info_test(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, haddr H5RC_INC(bt2_shared); incr_rc=TRUE; + /* Get the pointer to the shared B-tree info */ + shared = H5RC_GET_OBJ(bt2_shared); + HDassert(shared); + /* Make copy of the root node pointer to start search with */ curr_node_ptr = bt2->root; /* Current depth of the tree */ - depth = bt2->depth; + depth = shared->depth; /* Release header */ if(H5AC_unprotect(f, dxpl_id, H5AC_BT2_HDR, addr, bt2, H5AC__NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree header info") bt2 = NULL; - /* Get the pointer to the shared B-tree info */ - shared = H5RC_GET_OBJ(bt2_shared); - HDassert(shared); - /* Check for empty tree */ if(curr_node_ptr.node_nrec==0) HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "B-tree has no records") |