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Code optimization
Description:
Refactor B-tree code to extract all common information for a B-tree into a
shared structure that is pointed to by all the nodes in tree (instead of being
included in each node).
Also re-order B-tree node comparison checks for chunked datasets to
check for >= the upper node first, since the comparison is a bit "heavy" and
this check is more likely to succeed when you are adding records to the
dataset.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
(also, recent h5dump commits have broken testing...)
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Bug fix
Description:
The "shared" raw B-tree node can get freed before all the B-tree nodes
had been flushed out to disk and released by the cache.
Solution:
Implement a simple reference counting wrapper for objects in the library
and use it to hold the shared raw B-tree nodes so they aren't freed before all
references to them in memory are released.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir)
IRIX64 6.5 (modei4)
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Code optimization
Description:
Since the raw B-tree nodes are the same size and only used when reading in
or writing out a B-tree node, move raw B-tree node buffer from being per node
to a single node that is shared among all B-tree nodes of a particular tree,
freeing up a lot of space and eliminating lots of memory copies, etc.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.10 (sleipnir) w/parallel
Too minor to require h5committest
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Code cleanup
Description:
Some code cleanups before starting serious optimization efforts.
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Solaris 2.7 (arabica)
Too minor to require h5committest
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Code optimization & cleanup
Description:
Don't recompute the internal index value for looking up the chunk in the
hash table, just use the value already computed from iterating through the
chunks.
Also, back-port some of the various cleanups to the source code from the
development branch, to make diffing the code easier.
Platforms tested:
Solaris 2.7 (arabica)
FreeBSD 4.9 (sleipnir) w/parallel
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Code cleanup
Description:
Limit the scope on more function prototypes/macros/typedefs.
Platforms tested:
FreeBSD 4.8 (sleipnir)
h5committest not necessary.
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