Sears Russell
6198522971
Starting to rip the old jbhash implementation out, and replace it with a
...
linear hash implementation. In particular, I've implemented (sort of) an
iterator for linear hash, and (sort of) ported libdfa to linearhash.c
I say 'sort of' since this functionality is broken with this commit. On the other hand, CVS should build now, and the tests under lladd will pass. libdfa's new tests don't pass at the moment.
2005-01-10 03:02:02 +00:00
Sears Russell
55b0ddf1b6
Fixed nasty bug that was causing the LLADD header to be lost (!!)
2004-12-06 01:20:48 +00:00
Sears Russell
72070acb67
Implemented TsetRange, fixed bug in linear hash.
2004-12-03 00:27:47 +00:00
Sears Russell
443a90ad7c
Implemented TrecordType()
2004-12-01 01:26:25 +00:00
Sears Russell
ded5c92c9d
Support for nested top actions, with simple unit test. (Haven't tested for thread safety yet.)
2004-11-29 21:28:13 +00:00
Sears Russell
646f9dfca9
Implemented recover_split(), which is needed by the linear hash to recover properly from crashes. It hasn't been tested at all, and is not currently called by anything.
2004-11-29 02:35:37 +00:00
Sears Russell
2c23fb8a43
Did some misc. cleanup work on linearHash
2004-11-28 01:16:48 +00:00
Sears Russell
164c7cfd69
Linear Hash now survives Tdeinit/Tinit cycle (but not crashes!)
2004-11-24 23:26:15 +00:00
Sears Russell
910649a387
Web-site update, a few minor code changes from before the Freenix deadline.
2004-10-27 01:40:09 +00:00
Sears Russell
aead6a5a83
New benchmark, fixed for PROFILE_LATCHES.
2004-10-20 21:55:00 +00:00
Sears Russell
af9e7adee0
Starting work on the actual graph-generation portion of the benchmarks. :)
2004-10-20 06:21:21 +00:00
Sears Russell
903ba4b97b
Bugfix.
2004-10-19 22:58:56 +00:00
Sears Russell
ec99c0e258
Lots of optimizations; re-did on-disk layout for the linear hash table.
2004-10-19 21:16:37 +00:00
Sears Russell
6b265f28b0
Speedups, most notably in the logging subsystem.
2004-10-19 04:45:42 +00:00
Sears Russell
ec1276f26f
Preliminary version of logical logging linear hash. (No latching yet, and there are some bugs re-opening a closed hash.)
2004-10-18 18:24:54 +00:00
Sears Russell
04cfc7da8e
Optimized the 'naive' linear hash table, and moved to sourceforge. :)
2004-10-17 02:17:00 +00:00
Sears Russell
a078f25475
Implemented a linear hash from scratch. Concurrency hasn't been done, but it's probably correct in the single thread case.
2004-10-12 02:44:47 +00:00
Sears Russell
5064e3fac2
Implemented pages that store fixed sized records efficiently, and a java-style ArrayList data structure that efficiently supports (relatively) clustered, O(1) access time expandable arrays. (This will be used for the hash implementation...)
2004-10-06 06:08:09 +00:00
Sears Russell
96e7af92a4
Added test cases for Tprepare(), implemented some redo-only operations, and started to clean up record allocation/deallocation.
...
Also, numerous bugfixes.
2004-10-02 07:29:34 +00:00
Sears Russell
811bc5c710
Implemented a freespace manager that should safely allocate space, even in the face of crashes, and can reclaim unused space (unless an application opens more than one simultaneous transaction that performs allocations)
...
Fixed some blob bugs (by adding extra fdatasync() calls).
Began factoring out the page management code so that it is an extenstion, and a less integral part of lladd.
2004-08-21 00:03:30 +00:00
Sears Russell
b4d7883f66
Fixed regressions, major update of page / slotted interfaces in anticipation of moving LLADD towards a generic transactional page system.
2004-08-17 01:46:17 +00:00
Sears Russell
82e3fdb53a
Added (untested) support for whole-page operations, lladdhash now works.
2004-08-03 02:04:56 +00:00
Sears Russell
961b63af15
Rewrote / refactored page.h. Now, it uses a freelist to reclaim slotid's within a page, and is implemented as two seperate modules. The first handles lsn's, and (will soon) check the type of each page, and then delegate work to a particular implementation of the second module.
2004-07-30 01:28:39 +00:00
Sears Russell
8cb59f0c23
Blobs are now re-entrant.
2004-07-26 20:37:04 +00:00
Sears Russell
422198418a
bufferMananger is (really!) re-entrant now, performed big refactoring to prevent deadlocks, check_transactional2 ran overnight without coring, w/ 25 threads, and 10000 allocate/write/reads per thread. (The whole test suite was run in a loop...)
2004-07-23 20:21:44 +00:00
Sears Russell
0ce77903fb
Continuing work on multi-threading. r/w access to buffer manager getting close, but still buggy.
2004-07-20 03:40:57 +00:00
Sears Russell
9712e291e6
Moved page.h and some of the logging headers out of the public API.
2004-07-14 21:25:59 +00:00
Sears Russell
2b42451280
Cleaning up bufferManager / page for locking. Want to limit access to the Page struct.
2004-07-14 20:49:18 +00:00
Sears Russell
e1d3bf7a0c
Ported LLADD to Fedora, cleaned up autoconf setup, and numerouse #includes that were problematic.
2004-07-06 01:22:18 +00:00
Sears Russell
f8015a5687
Documentation update, added latch profiling tools.
2004-07-04 00:46:49 +00:00
Sears Russell
af152bd08e
Logwriter can now handler partial log entries correctly (it ignores them)
...
Buffer Mananger no longer steals pages pre-maturely
Alloc is an operation, and correct.
Caching broken out into a new module
Wrote a utility to translate a log file into human-readable ascii.
2004-06-30 01:09:57 +00:00
Sears Russell
c4fac084b8
Cleaned out old cruft, such as commented out code, dead data structures, and dead files. sloccount went from $75,000 to $50,000 on src/lladd. ;)
2004-06-28 22:48:02 +00:00
Sears Russell
fab0e6cbbd
Bugfixes ; blobs pass regression. Next stop: Delete old cruft.
2004-06-28 21:10:10 +00:00
Sears Russell
d1f76f0b4a
Initial revision
2004-06-24 21:10:31 +00:00
