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* [svn-r13711] Description:Quincey Koziol2007-04-301-157/+238
| | | | | | | | Reduce size of fill value message in default setting case (since it can't be eliminated). Tested on: Mac OS X/32 10.4.9 (amazon)
* [svn-r13459] Fix for Bug #763 - failure to create dataset of variable-length ↵Raymond Lu2007-03-051-1/+4
| | | | | | | | data with fill value. In function H5O_fill_convert, the background buffer was allocated without clearing. Later in H5T_vlen_disk_write , library thought there's data in this background buffer. Changed the allocating function to CALLOC.
* [svn-r13253] Updated all C and C++ style source code files with the THG ↵Albert Cheng2007-02-071-2/+3
| | | | | | | | | copyright notice. Tested platform: Kagiso only since it is only a comment block change. If it works in one machine, it should work in all, I hope. Still need to check the parallel build on copper.
* [svn-r13232] Description:Quincey Koziol2007-02-041-109/+18
| | | | | | | | | Remove the "scaffolding" for shared message method invocation and simplify the way shared messages are dealt with in general. Tested on: FreeBSD/32 6.2 (duty) Mac OS X/32 10.4.8 (amazon)
* [svn-r13218] Description:Quincey Koziol2007-01-291-6/+6
| | | | | | | | | Add "old" fill value messages to "new" fill value message sharing (and keep them both in the same shared message index). Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r13217] Description:Quincey Koziol2007-01-291-6/+6
| | | | | | | | | | | Move fill value messages into new shared message method calling scheme. Only update an opened dataset's fill value property if it's different from the default fill value settings. Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r13183] Description:Quincey Koziol2007-01-231-14/+13
| | | | | | | | | Checkpoint work toward getting the fill value message into the shared message interface regime. Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r13177] Description:Quincey Koziol2007-01-231-44/+44
| | | | | | | | Final tweaks before the big twist to fix shared message method calling. Tested on: Mac OS X/32 10.4.8 (amazon) FreeBSD/32 6.2 (duty)
* [svn-r13176] Description:Quincey Koziol2007-01-231-7/+51
| | | | | | | | Push code further toward shared message method calling refactor. Tested on: FreeBSD/32 6.2 (duty) Too minor to require h5committest
* [svn-r13167] Description:Quincey Koziol2007-01-221-207/+96
| | | | | | | | | | | Get rid of two different types of fill value struct (merge H5O_fill_t and H5O_fill_new_t) and clean up & simplify dataset initialization code. (In preparation for shared object header message method call refactoring). Tested on: FreeBSD/32 6.2 (duty) Mac OS X/32 10.4.8 (amazon)
* [svn-r13155] Description:Quincey Koziol2007-01-191-0/+4
| | | | | | | | | | | | | | Add "set_crt_index" and "get_crt_index" methods for the object header message class. Unify fractal heap definitions for shared messages and attributes, under "object header" fractal heap definitions. Initial code for adding creation order index to object header messages. Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2)
* [svn-r13143] Refactoring.James Laird2007-01-161-0/+2
| | | | | | | | | | | | | | Added can_share callback for OH messages. This determines whether the message is allowed to be shared in the heap (committed and immutable datatypes can't be). Fixed a bug in the dense attribute storage that tried to open the shared message heap when it hadn't been created yet. Made the test to extend shared dataspace messages a bit more robust. Refactored the code the searches a shared message list index to be a little more efficient. A few other minor changes. Tested on smirom, kagiso, Windows, and juniper.
* [svn-r13135] Continuing code cleanup.James Laird2007-01-111-1/+0
| | | | | | | | | Moved SOHM table version out of table encoding and completely into superblock. This is a file format change. Added test that extends shared dataspaces. Dynamically allocate arrays in shared message cache code. Clean up comments. Tested on windows, kagiso, smirom.
* [svn-r13065] Added support for copying shared messages (including turning ↵James Laird2006-12-151-7/+5
| | | | | | | | | | | | unshared messages to shared messages and vice versa). Extended objcopy test to test all "permutations" of shared/unshared and new/old group format. If this proves to take a long time to test, I'll go back and have it run fewer tests when HDF5_TEST_EXPRESS is enabled. Tested on smirom, kagiso, copper, and Windows.
* [svn-r13058] Description:Quincey Koziol2006-12-131-8/+2
| | | | | | | | | | | Clean up some shared message operations and other minor tweaks, in the process of trying to solve the messy way that shared object header messages are implemented in general (not James' work - which is fine :-) Tested on: Mac OS X/32 10.4.8 (amazon) FreeBSD/32 4.11 (sleipnir) AIX/32 5.? (copper)
* [svn-r13028] Description:Quincey Koziol2006-12-061-4/+4
| | | | | | | | | | | | | | | | | Add first pass of "dense" attribute storage to objects. Lots of parts of this are stubbed out, but all the tests are passing and I'll work on the corner cases soon. Eliminated several unused parameters from object header message callback routines. Other, miscellaneous code cleanups, etc. (and probably some things I've forgotten about... :-) Tested on: FreeBSD/32 4.11 (sleipnir) Linux/32 2.4 (heping) AIX/32 5.? (copper)
* [svn-r13016] Description:Quincey Koziol2006-12-041-12/+4
| | | | | | | | | | | Finish moving object header message routines into their own source code module, along with renaming them to have "H5O_msg_" prefix... Tested on: Mac OS X/32 10.4.8 (amazon) FreeBSD/32 4.11 (sleipnir) Linux/32 2.4 (heping) AIX/32 5.? (copper)
* [svn-r13015] Description:Quincey Koziol2006-12-041-3/+3
| | | | | | | | | | | Migrate more object header routines to use the H5O_msg_ prefix and put them into the src/H5Omessage.c code module. Tested on: Mac OS X/32 10.4.8 (amazon) FreeBSD/32 4.11 (sleipnir) Linux/32 2.4 (heping) AIX/32 5.? (copper)
* [svn-r13002] Description:Quincey Koziol2006-11-301-10/+14
| | | | | | | | | | | | Fix problem with copying objects when the dataset to copy has an "older" version of the layout message and needs to compute the size of the dataset's storage after the dataspace information is available. Minor random cleanups also... Tested on: FreeBSD/32 4.11 (sleipnir) Too minor/weird to test w/h5committest...
* [svn-r12902] Checkin of Shared Object Header Message work.James Laird2006-11-131-21/+133
| | | | | | | | | | | | This feature is still in progress; Shared Object Header Messages are not complete as a feature and are not thoroughly tested. There are still "TODO" comments in the code (comments with the word "JAMES" in them, so as not to be confused with other TODO comments). Hopefully this checkin will reduce the liklihood of conflicts as I finish implementing this feature. All current tests pass on juniper, copper (parallel), heping, kagiso, and mir.
* [svn-r12740] Description:Quincey Koziol2006-10-101-163/+171
| | | | | | | | | | | Update datasets and the layout, attributes and fill-value object header messages to use the latest version of the file format flag. Tested on: FreeBSD 4.11 (sleipnir) Linux/64 2.4 (mir) Linux/32 2.4 (heping)
* [svn-r12706] Description:Quincey Koziol2006-10-021-3/+3
| | | | | | | | | Clean up some of the warnings on 64-bit Linux... Tested on: Linux/32 2.6 (chicago) Linux/64 2.6 (chicago2) Too minor to require h5committest
* [svn-r11758] Purpose:Quincey Koziol2005-12-041-4/+6
| | | | | | | | | | | | | New feature Description: Add in a combination of Peter's & my code to support copying variable-length data from one file to another, although currently only supported with contiguous data storage. Platforms tested: FreeBSD 4.11 (sleipnir) h5committest
* [svn-r11712] Purpose:Quincey Koziol2005-11-151-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New feature Description: Check in baseline for compact group revisions, which radically revises the source code for managing groups and object headers. WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! This initiates the "unstable" phase of the 1.7.x branch, leading up to the 1.8.0 release. Please test this code, but do _NOT_ keep files created with it - the format will change again before the release and you will not be able to read your old files!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! WARNING!!!! Solution: There's too many changes to really describe them all, but some of them include: - Stop abusing the H5G_entry_t structure and split it into two separate structures for non-symbol table node use within the library: H5O_loc_t for object locations in a file and H5G_name_t to store the path to an opened object. H5G_entry_t is now only used for storing symbol table entries on disk. - Retire H5G_namei() in favor of a more general mechanism for traversing group paths and issuing callbacks on objects located. This gets us out of the business of hacking H5G_namei() for new features, generally. - Revised H5O* routines to take a H5O_loc_t instead of H5G_entry_t - Lots more... Platforms tested: h5committested and maybe another dozen configurations.... :-)
* [svn-r11686] Purpose:Quincey Koziol2005-11-071-2/+6
| | | | | | | | | | | | | | | | | | | New feature Description: Add in baseline "object copy" code from Peter [in the form of a new API routine: H5Gcopy()]. There's still some work to do (like handling variable- length datatypes and possibly support for references) and it hasn't been tested on mounted files yet, but the core functionality is there and working correctly. I've also got a set of patches to update the 1.6 branch with tweaks to keep the branches mostly in sync, but Elena will kill me if I import them before the 1.6.5 release is out... :-) Platforms tested: FreeBSD 4.11 (sleipnir) h5committested
* [svn-r11415] Purpose: Internal design change.Raymond Lu2005-09-141-1/+1
| | | | | | | | | | | | | | | | | Description: H5T_register() replaces any existing data conversion path with a new path. Solution: Added a parameter to H5T_register() and H5T_path_find() to signal the library whether the new conversion path is from API function H5Tregister() or from private function like H5T_init_interface(). If it is from H5Tregister(), replace existing path. If it's from H5T_init_interface() and the library is trying to register default hard conversion functions, don't replace existing path because the path is registered by the library. For example, the library registered H5T_conv_int_float() and is trying to register H5T_conv_long_float(). The size of long is equal to int. There's no need to replace the path H5T_conv_int_float(). Platforms tested: h5committest and fuss.
* [svn-r11245] Purpose:Quincey Koziol2005-08-131-32/+32
| | | | | | | | | | | | | | | | | | | | Code cleanup Description: Trim trailing whitespace, which is making 'diff'ing the two branches difficult. Solution: Ran this script in each directory: foreach f (*.[ch] *.cpp) sed 's/[[:blank:]]*$//' $f > sed.out && mv sed.out $f end Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r10238] Purpose:Quincey Koziol2005-03-201-1/+1
| | | | | | | | | | | | | | | | Optimization Description: Speed up I/O on enumerated datatypes (including those nested in compound datatypes, arrays, etc.) if the destination datatype is a proper superset of the source datatype. Solution: Detect the situation and treat as no-op datatype conversion. Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r9857] Purpose: MaintenanceElena Pourmal2005-01-221-1/+0
| | | | | | | | | | | | | | Description: Removed PABLO from the source Solution: Platforms tested: arabica with 64-bit, copper with parallel, heping with GNU C and C++ and PGI fortran (but I disabled hl, there is some weird problem only on heping: F9XMODFLAG is not propagated to the Makefile files Misc. update:
* [svn-r9727] Purpose:Quincey Koziol2004-12-291-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug Fix/Code Cleanup/Doc Cleanup/Optimization/Branch Sync :-) Description: Generally speaking, this is the "signed->unsigned" change to selections. However, in the process of merging code back, things got stickier and stickier until I ended up doing a big "sync the two branches up" operation. So... I brought back all the "infrastructure" fixes from the development branch to the release branch (which I think were actually making some improvement in performance) as well as fixed several bugs which had been fixed in one branch, but not the other. I've also tagged the repository before making this checkin with the label "before_signed_unsigned_changes". Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel & fphdf5 FreeBSD 4.10 (sleipnir) w/threadsafe FreeBSD 4.10 (sleipnir) w/backward compatibility Solaris 2.7 (arabica) w/"purify options" Solaris 2.8 (sol) w/FORTRAN & C++ AIX 5.x (copper) w/parallel & FORTRAN IRIX64 6.5 (modi4) w/FORTRAN Linux 2.4 (heping) w/FORTRAN & C++ Misc. update:
* [svn-r9556] Purpose:Quincey Koziol2004-11-221-12/+13
| | | | | | | | | | | | | | | | | | | | | Code cleanup & optimization Description: Improve ADF/CGNS benchmark by reducing the number of internal attribute copies made during creations, opens and writes. Added new H5O_iterate() routine for iterating through messages of a certain type in the object header (attributes are the only message currently that can have multiple instances in the object header). Cross-pollinated various minor code cleanups to reduce diffs between branches. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel Solaris 2.7 (arabica) Too minor to require h5committest
* [svn-r9117] Purpose: Minor Bug FixRaymond Lu2004-08-191-2/+2
| | | | | | | | | | | Description: In H5O_fill_new_decode and H5O_fill_new_encode, UINT32DECODE and UINT32ENCODE were used to decode and encode message size, which is ssize_t. Solution: Change to INT32DECODE and INT32ENCODE. Platforms tested: fuss - very simple change. Misc. update:
* [svn-r9108] Purpose: Bug fixRaymond Lu2004-08-181-16/+4
| | | | | | | | | | | Description: In H5O_fill_new_decode, it tries to read message size(-1) when fill value is undefined for version 1. During UINT32DECODE, if the machine is 64-bit, a value 0x00000000ffffffff is returned, which is like a valid value. Solution: If fill value is undefined, don't read the message size, simply assign -1 to it. Platforms tested: fuss - did h5committest for v1.6 already.
* [svn-r8731] Purpose:Quincey Koziol2004-06-231-51/+23
| | | | | | | | | | | | | | | Code cleanup & minor optimization Description: Re-work the way interface initialization routines are specified in the library to avoid the overhead of checking for them in routines where there is no interface initialization routine. This cleans up warnings with gcc 3.4, reduces the library binary size a bit (about 2-3%) and should speedup the library's execution slightly. Platforms tested: FreeBSD 4.10 (sleipnir) w/gcc34 h5committest
* [svn-r8683] Purpose:Quincey Koziol2004-06-141-1/+1
| | | | | | | | | | | | | Code optimization Description: Use 'size_t' instead of 'hsize_t' to track the number of elements in memory buffers, especially for type conversion. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8314] Purpose: Progressive check-inRaymond Lu2004-04-061-1/+1
| | | | | | | | | | Description: NULL dataspace. This step is mainly for dataspace header message and a test. Solution: The test mainly checks NULL dataspace features. Backward compatibility is tested in the fill value test. Platforms tested: h5committest
* [svn-r8053] Purpose:Quincey Koziol2004-01-131-2/+2
| | | | | | | | | | | | | | | | | | | | Bug fix Description: Correct two problems with variable-length datatypes in datasets: - When overwriting an entire dataset, writing the fill value to the file would be skipped, causing problems for VL datatypes when objects in the file had been unlinked (and thus the space in the file was not all zeros) - When an application has set a fill-value for a dataset and the dataset's datatype contained a VL datatype, the library was filling space on disk with the memory form of the VL information, instead of the disk form. Platforms tested: FreeBSD 4.9 (sleipnir) h5committest
* [svn-r7842] Purpose:Quincey Koziol2003-11-131-34/+36
| | | | | | | | | | | | | | | | | | | Bug fix Description: Variable length strings and sequences with NULL pointers were not handled by library, causing problems access the data. This also affected fill values for variable-length datatypes. Solution: Address the issues in the library by detecting NULL sequences/strings and avoid trying to convert them. Patched up dumper to display NULL sequences/strings. Platforms tested: FreeBSD 4.9 (sleipnir) h5committest
* [svn-r7538] Purpose:Quincey Koziol2003-10-051-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug fixes and code cleanup Description: Lots of changes here: - Fixed bug #691 - when shared datatypes are used in attributes they are incorrectly copied into the attribute instead of referring the the named datatype in the file. This required bumping the version of the attribute message. The new version of the attribute message is only written out when a shared datatype is used in the attribute. [Also, this format change made the size of the attribute smaller.] - Added information to attribute debugging routine so that shared datatypes are displayed correctly with the h5debug tool. - Refactored the H5O* routines to extract code that was common to several routines into subroutines to call. - Added 'link' method for H5O message sub-classes, which increments the link count on shared objects when a message is created which shares them. - Corrected [unreported] bug where the link count was not being decremented on the shared object when a object header message with a reference to that object was deleted from the file. - Reduced size of shared message from 49 bytes (which was incorrect anyway and should have been 48 bytes) to 10 bytes, which required bumping the version of "shared" messages. - Refactored some of the shared datatype routines to allow for easier queries of "committedness" internally to the library and also added routine to easily increment/decrement the reference count of a shared datatype. Platforms tested: FreeBSD 4.9 (sleipnir) h5committest
* [svn-r7453] Purpose:Quincey Koziol2003-09-101-27/+49
| | | | | | | Checkpoint file format spec. Description: Clarifications and cleanups related to file format review.
* [svn-r7036] Purpose:Quincey Koziol2003-06-131-0/+4
| | | | | | | | | | | Code cleanup Description: Add new H5D_FILL_TIME_IFSET value to debugging output. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest
* [svn-r6837] Purpose:Quincey Koziol2003-05-081-7/+7
| | | | | | | | | | | | | | | Code cleanup. Description: Move many package or internal function prototypes and macro definitions into tighter scope according to their current use. Added more comments where appropriate. Eliminate ancient, unused functions. Added a couple "accessor" functions to get parts of data structures which were moved out of scope. Platforms tested: h5committested
* [svn-r6832] Purpose:Quincey Koziol2003-05-081-1/+56
| | | | | | | | | | | Code cleanup Description: Improve file format debugging output. Platforms tested: FreeBSD 4.8 (sleipnir) Triple check not needed
* [svn-r6659] Purpose:Quincey Koziol2003-04-141-0/+2
| | | | | | | | | | | | | | | | New feature, sorta Description: Track changes to various internal APIs Platforms tested: FreeBSD 4.8 (sleipnir) w/C++ Linux 2.4 (burrwhite) w/FORTRAN Solaris 2.7 (arabica) w/FORTRAN IRIX64 6.5 (modi4) w/parallel & FORTRAN (h5committest not run due to my ongoing difficulties with C++ on burrwhite).
* [svn-r6411] Purpose:Quincey Koziol2003-02-171-6/+19
| | | | | | | | | | | | | | | | | | | | | | Code cleanup Description: Clean up miscellaneous warnings which have crept into the code. Fix "_POSIX_C_SOURCE not defined" warning on FreeBSD. Adjust gcc compiler flags to be more concise for production mode. Refactor the H5O code so that there is a stronger boundary between code in the H5O package and code in the library which just calls H5O routines. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} FreeBSD 4.7 (sleipnir) serial & parallel and gcc 2.95.4 & gcc 3.2.2 Misc. update: Update MANIFEST if you add or remove any file.
* [svn-r6398] Purpose:Quincey Koziol2003-02-121-4/+4
| | | | | | | | | | Code cleanup Description: Clean up some compiler warnings Platforms tested: FreeBSD 4.7 (sleipnir)
* [svn-r6387] Purpose:Quincey Koziol2003-02-101-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | Bug Fix Description: Metadata cache in parallel I/O can cause hangs in applications which perform independent I/O on chunked datasets, because the metadata cache can attempt to flush out dirty metadata from only a single process, instead of collectively from all processes. Solution: Pass a dataset transfer property list down from every API function which could possibly trigger metadata I/O. Then, split the metadata cache into two sets of entries to allow dirty metadata to be set aside when a hash table collision occurs during independent I/O. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} FreeBSD 4.7 (sleipnir) serial & parallel Misc. update: Updated release_docs/RELEASE
* [svn-r6266] Purpose:Quincey Koziol2003-01-101-15/+15
| | | | | | | | | | | | Code cleanup/new feature. Description: Split FUNC_LEAVE into API and non-API specific versions. This allows a solution to compiling this branch with C++, as well as reducing the size of the binaries produced. Platforms tested: FreeBSD 4.7 (sleipnir) w/serial, parallel (including MPE) & thread-safe
* [svn-r6252] Purpose:Quincey Koziol2003-01-091-19/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Lots of performance improvements & a couple new internal API interfaces. Description: Performance Improvements: - Cached file offset & length sizes in shared file struct, to avoid constantly looking them up in the FCPL. - Generic property improvements: - Added "revision" number to generic property classes to speed up comparisons. - Changed method of storing properties from using a hash-table to the TBBT routines in the library. - Share the propery names between classes and the lists derived from them. - Removed redundant 'def_value' buffer from each property. - Switching code to use a "copy on write" strategy for properties in each list, where the properties in each list are shared with the properties in the class, until a property's value is changed in a list. - Fixed error in layout code which was allocating too many buffers. - Redefined public macros of the form (H5open()/H5check, <variable>) internally to only be (<variable>), avoiding innumerable useless calls to H5open() and H5check_version(). - Reuse already zeroed buffers in H5F_contig_fill instead of constantly re-zeroing them. - Don't write fill values if writing entire dataset. - Use gettimeofday() system call instead of time() system when checking the modification time of a dataset. - Added reference counted string API and use it for tracking the names of objects opening in a file (for the ID->name code). - Removed redundant H5P_get() calls in B-tree routines. - Redefine H5T datatype macros internally to the library, to avoid calling H5check redundantly. - Keep dataspace information for dataset locally instead of reading from disk each time. Added new module to track open objects in a file, to allow this (which will be useful eventually for some FPH5 metadata caching issues). - Remove H5AC_find macro which was inlining metadata cache lookups, and call function instead. - Remove redundant memset() calls from H5G_namei() routine. - Remove redundant checking of object type when locating objects in metadata cache and rely on the address only. - Create default dataset object to use when default dataset creation property list is used to create datasets, bypassing querying for all the property list values. - Use default I/O vector size when performing raw data with the default dataset transfer property list, instead of querying for I/O vector size. - Remove H5P_DEFAULT internally to the library, replacing it with more specific default property list based on the type of property list needed. - Remove redundant memset() calls in object header message (H5O*) routines. - Remove redunant memset() calls in data I/O routines. - Split free-list allocation routines into malloc() and calloc()- like routines, instead of one combined routine. - Remove lots of indirection in H5O*() routines. - Simplify metadata cache entry comparison routine (used when flushing entire cache out). - Only enable metadata cache statistics when H5AC_DEBUG is turned on, instead of always tracking them. - Simplify address comparison macro (H5F_addr_eq). - Remove redundant metadata cache entry protections during dataset creation by protecting the object header once and making all the modifications necessary for the dataset creation before unprotecting it. - Reduce # of "number of element in extent" computations performed by computing and storing the value during dataspace creation. - Simplify checking for group location's file information, when file has not been involving in file-mounting operations. - Use binary encoding for modification time, instead of ASCII. - Hoist H5HL_peek calls (to get information in a local heap) out of loops in many group routine. - Use static variable for iterators of selections, instead of dynamically allocation them each time. - Lookup & insert new entries in one step, avoiding traversing group's B-tree twice. - Fixed memory leak in H5Gget_objname_idx() routine (tangential to performance improvements, but fixed along the way). - Use free-list for reference counted strings. - Don't bother copying object names into cached group entries, since they are re-created when an object is opened. The benchmark I used to measure these results created several thousand small (2K) datasets in a file and wrote out the data for them. This is Elena's "regular.c" benchmark. These changes resulted in approximately ~4.3x speedup of the development branch when compared to the previous code in the development branch and ~1.4x speedup compared to the release branch. Additionally, these changes reduce the total memory used (code and data) by the development branch by ~800KB, bringing the development branch back into the same ballpark as the release branch. I'll send out a more detailed description of the benchmark results as a followup note. New internal API routines: Added "reference counted strings" API for tracking strings that get used by multiple owners without duplicating the strings. Added "ternary search tree" API for text->object mappings. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} Other platforms/configurations tested? FreeBSD 4.7 (sleipnir) serial & parallel Solaris 2.6 (baldric) serial
* [svn-r5926] Purpose:Quincey Koziol2002-09-131-4/+4
| | | | | | | | | | | | | API name change Description: Change all "space time" references to "alloc time", including API functions and macro definitions, etc. Platforms tested: FreeBSD 4.6 (sleipnir) w/C++ Solaris 2.7 (arabica) w/FORTRAN IRIX64 6.5 (modi4) w/parallel & FORTRAN
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